MXPA97008390A - Pump spray for viscous liquids and for solid loaded liquids - Google Patents
Pump spray for viscous liquids and for solid loaded liquidsInfo
- Publication number
- MXPA97008390A MXPA97008390A MXPA/A/1997/008390A MX9708390A MXPA97008390A MX PA97008390 A MXPA97008390 A MX PA97008390A MX 9708390 A MX9708390 A MX 9708390A MX PA97008390 A MXPA97008390 A MX PA97008390A
- Authority
- MX
- Mexico
- Prior art keywords
- liquid
- spray
- supply system
- elongated hole
- sustainable
- Prior art date
Links
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Abstract
The present invention relates to a sustainable spray supply system in hand to dispense a liquid, the delivery system comprising: (a) a container containing the liquid, (b) the liquid has a viscosity greater than about 60 centipoise (c) a pump device manually operated and mounted on the container, the pump device includes an inlet duct, a pump chamber, and a discharge duct having a distal end, all are connected in liquid communication, so that the liquid can be pumped from inside the container, through the inlet duct, into the pump chamber and through the discharge duct with the manual actuation of the pump device, (d) a spray nozzle including a accommodation having an entrance side and an exit side, the accommodation has an internal recess through the entrance side that ends on the exit side, said intermediate recess has a vault d Since it forms an interior surface in it, the outlet side has two V-shaped grooves in it that arranged in union with the inner surface of the dual vault forms two elongated holes, the internal recess is associated in liquid communication to the distal end of the discharge conduit such that the liquid passes through said discharge conduit through the spray nozzle and converges towards the elongated orifice and is dispensed therefrom in a dew pattern in the air.
Description
PUMP SPRAY FOR VISCOUS LIQUIDS AND FOR SOLID-CHARGED LIQUIDS
CROSS REFERENCE WITH A RELATED APPLICATION This is a continuation of the application with serial number 08 / 604,556, filed on February 21, 1996 and which is a continuation in part of the Application Serial Number 08 / 499,753, filed July 7. of 1995.
FIELD OF THE INVENTION The present invention relates to packages for dispensing liquid products and, more particularly, to a manually operated spray supply system for dispensing liquids difficult to spray (for example, viscous liquids and / or liquids laden with solids) into a spray scattered.
BACKGROUND OF THE INVENTION The quantity of the liquid product dispensed and the quality of the dispersed spray are important parameters that can have an important impact on the performance of a liquid product applied by means of an atomized spray. This is particularly true when a relatively viscous or solid-charged liquid product is to be used to form a thin and uniform coating on a surface and the total amount of liquid product applied and the quality of the spray dispersed directly impact the thickness and uniformity of the product. product coating. Spray-type dispensers have been used to atomize relatively viscous liquids, however, recently, there has been a tendency to move away from aerosol dispensing systems for environmental reasons. Thus, the use of a propellant, regardless of its type, makes an aerosol can is less desirable than hand-pump spray dispensers. Many hand-operated sprayers have also been used manually to atomize liquids. However, when dispensing relatively viscous products such as for example pail coatings based on cooking oil or vegetable oil, these devices have generally resorted to a dual current incident type nozzle. There are some problems and disadvantages with the incident type nozzle when it is used to dispatch these products. These nozzles of the incident type are more difficult to manufacture because the individual ducts of the nozzle must be precisely aligned with the precision required to repeatedly produce discharge currents that intersect or collide at a particular point in order to the atomization of the liquid product occurs. Additionally, the small size of the multiple outlet orifices required in an incident nozzle to increase the speed of the liquid are prone to plugging when dispensing a liquid product loaded with solids. When a manually operated pump sprayer is used to dispatch a relatively viscous liquid product, there are certain challenges, especially when attempting to disperse the liquid in a dispersed spray. As used herein, a dispersed spray is, for example, a dispensed liquid that breaks and forms droplets or disintegrates in an atomized spray. The dispersed spray may contain droplets of liquid that are finely dispersed, such as for example an atomized spray or, dispersed in an even larger or thicker form, which represents larger liquid droplets. Relatively viscous liquids usually have a tendency to resist rupture rather than being easily dispensed into a dispersed spray. As a general proposition, the less finely dispersed the atomized spray, the more difficult it will be to achieve a comparatively thin and uniform product coating on a surface. It is also problematic when what is to be dispensed using a manually operated pump sprayer are liquid products loaded with solids, that is, liquids that have a large amount of solids suspended in them. Usually, liquid products containing solid particles have a tendency to plug and clog the small ducts of the spray nozzles. Thus, dispensing liquid products in a dispersed spray is especially problematic when the relatively viscous liquid also contains a significant amount of solid materials. A particularly problematic product for dispensing with a manually operated pump sprayer, due to its relatively viscous and generally solid-charged nature, is a liquid product based on vegetable oil used in the preparation of foods, such as, for example, coatings for frying pans and liquid flavor enhancers. These liquid products normally comprise a vegetable oil and, optionally may include an amount of additives for stability, performance and / or flavor enhancement. A thin and uniform coating of an oil-based product is desirable in order to provide the skillet with non-stick cooking or baking characteristics and to avoid the over application of flavor enhancers. These products generally have a comparatively high viscosity and these relatively viscous products can include a significant amount of solids or particles suspended therein.
SUMMARY OF THE INVENTION In one aspect of the present invention, a sustainable spray supply system is provided in the hand for dispensing a liquid. This spray supply system includes a container adapted to house the liquid. The liquid is a cooking spray based on vegetable oil that has a viscosity of from about 80 to about 300 centipoise and is a liquid loaded with solids. This relatively viscous and solid-charged liquid may contain up to about 10% solid particulate material including salt particles. A manually operated pump device is mounted in the container. The pump device includes an inlet duct, a pump chamber and a discharge duct having a distal end. All these are connected in liquid communication, so that the liquid can be pumped from inside the container, through the inlet duct, to the pump chamber and through the discharge duct with the manual actuation by the pump device. A rolling nozzle including a housing having an inlet side and an outlet side is also included. The outlet side can be made of an elastomeric material and the elastomeric material has a hardness of from about 40 Shore A to about 60 Shore D. The elastomeric material additionally has a flexural modulus of between about 1,000 psi (6.894.8 kPa) to about 25,000. psi (172.370 kPa). The entire spray nozzle can alternatively be made of an elastomeric material. The housing has an internal recess through the inlet side that ends in an elongated hole in the outlet side. The internal recess has therein a dome-shaped inner surface and the outlet side has therein a V-shaped groove that intersects the inner surface to form an elongated hole. The internal recess is connected or connected in fluid communication with the distal end of the discharge conduit, so that the liquid passing through the discharge conduit flows through the spray nozzle and converges towards the elongated orifice. The elastomeric material allows the elongated hole to distort in a resilient manner, substantially reducing in this way the likelihood of plugging when the liquid is dispensed therefrom in a dispersed spray. A manually retractable post can also be provided. The manually retractable post is secured or secured at the distal end of the discharge conduit and is movable between an open position and a closed position. The open position allows the liquid to flow through the discharge duct around the manually retractable post. In an alternate embodiment, the spray nozzle further includes an insert. The insert is contained within the housing and the insert has formed therein an elongated hole. The internal recess also includes an inner surface and a coupling ring. The coupling ring is located on the outlet side of the housing. The coupling ring extends radially from the inner surface and terminates in a radially outwardly spaced location from the elongated hole, wherein the insert is held within the internal recess by the coupling ring. The insert can be made of an elastomeric material that allows the elongated hole to be resiliently distorted thereby substantially reducing the likelihood of plugging during use. In another alternative embodiment, the housing further includes a first segment fixed or secured to a second segment. The first segment is located on the inner side that has the internal recess extending through it and the second segment is located on the exit side that has thereon the elongated orifice. The second segment is made of an elastomeric material, such as, for example, a thermoplastic copolyester. The elastomeric material allows the elongated hole to be resiliently distorted thereby substantially reducing the likelihood of plugging during use. The pump device further comprises a trigger operated sprinkler including a trigger and a piston. The trigger serves as an actuator that reciprocates with the piston. The pump device can alternatively comprise a reciprocating finger pump having a finger button and a piston and the spray nozzle is connected to the finger button, so as to be in liquid communication with the discharge conduit. This finger button engages reciprocatingly with the piston. In both embodiments, the piston is slidably fitted within the pump chamber in order to effect the actuation of the spray supply system.
BRIEF DESCRIPTION OF THE DRAWINGS While the specification concludes with the claims that particularly state and claim in a distinctive manner to the invention, it is believed that the present invention will be better understood from the following description taken in conjunction with the appended claims and with the accompanying drawings, in which like reference numerals indicate identical elements and, where / Figure 1 is a perspective view of a spray supply system in accordance with the present invention and wherein the package is shown by a dashed line; Figure 2 is a partial cross section of the spray supply system seen in Figure 1 in accordance with the present invention; Figure 3 is an enlarged perspective view of the spray nozzle of Figure 1; Figure 4 is an enlarged view of the spray nozzle of Figure 3; Figure 5A is a cross section of the spray nozzle taken along the line 5A-5A of Figure 4; Figure 5B is a cross section of the spray nozzle taken along line 5B-5B of Figure 4 and showing a portion of the discharge chute; Figure 6 is a cross section similar to that of Figure 5A of a first alternative spray nozzle; Figure 7 is a cross section similar to that of Figure 5A of a second alternative spray nozzle; Figure 8 is an enlarged cross-section similar to that of Figure 5B of a third alternative spray nozzle suitable for use with the present invention; Figure 9 is an enlarged elevation view of the spray nozzle of Figure 3 showing the V-shaped groove; Figure 10A is an enlarged cross-section similar to that of Figure 5B of a fourth alternative spray nozzle suitable for use with the present invention; Figure 10B is an enlarged cross-section similar to that of Figure 5B of a fifth alternative spray nozzle having two elongated holes suitable for use with the present invention; Figure 10C is an enlarged cross-section similar to that of Figure 5B of a sixth alternative spray nozzle having two oriented elongated holes suitable for use with the present invention; Figure HA is a cross section similar to that of Figure 5B of a seventh alternative spray nozzle having a manually retractable post, shown in the retracted position; Figure 11B is a view of the seventh alternative spray nozzle of Figure HA, shown in the closed position; and Figure 12 is a partial cross-section similar to that of Figure 2 of an alternative configuration of the spray supply system in accordance with the present invention.
DETAILED DESCRIPTION OF THE INVENTION In a particularly preferred embodiment observed in Figure 1, the present invention provides a sustainable spray supply system in the hand for dispensing a liquid, generally indicated as 10. This spray supply system 10 substantially reduces the Probability of tamponade during use. The delivery system 10 includes a slotted spray nozzle 40 connected to a manually operated pump device 20 and to a package 30 (shown in broken lines only). The package 30 is adapted to receive a liquid. The one that is sustainable in the hand, as used herein, refers to the ability of a single consumer to load or transport and use this spray supply system 10, preferably by simply holding the pump device with one hand 20 manually operated Referring now to Figure 2, an inlet tube 22 having therethrough an inlet conduit 23 extends downward toward the container 30 from the pump device 20. The slotted spray nozzle 40 is connected to a pipe. of discharge 26 of the pump device 20. The discharge tube 26 has a discharge conduit 27 extending therethrough, the discharge conduit 27 has a distal end and a proximal end. The proximal end of the discharge conduit 27 is connected to a pump chamber 28. The slotted spray nozzle 40 is connected in liquid communication with the distal end of the discharge conduit 27, so that the liquid passing through the discharge conduit 27 flows through the slotted spray nozzle 40 and is dispensed from the same in a scattered spray. A wide variety of manually operated pump-type spray mechanisms are suitable for use in the present invention. A more detailed description of the features and components of the pump device 20 can be found in U.S. Patent No. 3,701,478, issued October 31, 1972 to Tada, which is incorporated herein by reference. Pump devices 20 of this general type are commercially available versions sold by Continental Manufacturing Co. , under the trade name "Industrial Sprayer 922" while the aforementioned pump device 20 is currently the preferred one, many other standard manually operated pump sprayer mechanisms could also function with this capability. The particular trigger-operated pump device 20, which is triggered and observed in Figure 2, is illustrative of the typical operational features of these manually operated pumps and is a currently preferred configuration for commercial applications. As seen in Figure 2, the pump device 20 is used to transport liquid from the container 30 to pressurize the liquid and to pass this pressurized liquid through the slotted spray nozzle 40. In this presently preferred embodiment, the trigger 24 serves as an actuator that reciprocates with a piston 29 which is slidably fitted within the pump chamber 28 in order to effect actuation or actuation of the delivery system 10. It is preferable that the device pump 20 dispenses a dose from about 1 cc to about 3 cc of liquid during each drive stroke or dispatch cycle. The force required to dispatch the liquid is the amount of force that the operator must exert on the trigger 24 in order to operate the pump device 20. This force for dispensing must be accessible and must not fatigue the operator's fingers and hand . Preferably, the force to dispatch is less than about 10 pounds (4.54 kg) at an actuation rate of from about 3 inches (7.62 cm) per second to about 4 inches (10.16 cm) per second; and, more preferably, the force for dispensing is from about 5 pounds (2.27 kg) to about 8 pounds (3,632 kg). Certain aspects of the configuration of the pump device 20 depend on the nature of the liquid that will be dispensed. The liquid dispensed by this spray supply system 10 can be a relatively viscous liquid. In the case of a Newtonian liquid (where the viscosity does not depend on the cutting speed), the absolute viscosity of the liquid is measured using, for example, a rotary spinner Haake RV20 Rotovisco. One configuration of this rheometer used for relatively viscous liquids is the PK45 / 4 ° cone and plate system. The tolerance or clear of the plate to the truncated cone for this system is approximately 0.175 mm. The temperature of the sample is maintained at from about 21 ° C to about 25 ° C, which is representative of ambient temperature conditions. The rotation of the plate induces the cut or shear in the sample between the plate and the cone. Viscosity is calculated by the software of the induced torque or shear or shear on the cone. This viscosity data is obtained using software version 2.1 of Haake Rotovisco, where the rate or speed of cut is programmed by the user and the subsequent data acquisition and subsequent processing are automated processes. The cutting speed is programmed in decades (for example, 0.1, 1, 10, 100) so that the data distribution is relatively uniform on a logarithmic scale. The initial and final cutting speeds of each decade are programmed together with the time intervals, in such a way that the acceleration of the turntable is substantially uniform. The rheology measurements covered a range of cutting speeds of from about 0.1 to 300 reciprocal seconds in about 5 minutes. The acquired data was graphed in order to evaluate the viscosity at different cutting speeds by instructing the software to plot the viscosity against the cutting speed on logarithmic scales. In particular, the relatively viscous Newtonian liquids for use in this delivery system 10 are liquids which, preferably, have a viscosity greater than about 60 centipoise; more preferably, a viscosity of about 80 centipoise to about 300 centipoise; and, most preferably, a viscosity from about 80 centipoise to about 170 centipoise. In the case of a non-Newtonian liquid (where the viscosity varies with the cutting speed), the term "high cutting speed" refers to cutting speeds found in the outlet regions of the slotted spray nozzle 40 and, are from approximately 100,000 to 200,000 reciprocal seconds. These high cutting speeds occur in the elongated hole 42 and in particular are for a dose of 1 cc using the most preferred dimensions of the elongated hole 42. The rheology of a non-Newtonian liquid is characterized, using, for example, a system of Instron Hair Regulator model 3211 together with the test procedure prescribed by the manufacturer. The procedure for measuring a high cutting speed viscocity using this system includes the use of a die of approximately 0.010 inches (0.02b cm) of internal diameter by approximately 1.5 inches (3.81 cm) in length, a load cell with interval or range of approximately 50 lbf, a plunger feed speed of from about 3 to 10 inches (7.62 cm to 25.4 cm), under ambient temperature conditions. The movement of the plunger through the cylinder or barrel of the instrument causes the flow of material through the die at a fixed cutting speed. The pressure drop across the die is inferred by measuring the force required to drive the plunger. The output data are in the form of force data, which are subsequently processed to produce viscosity curves against cutting speed, using the formulas supplied by the manufacturer. In particular, the relatively viscous non-Newtonian liquids for use in the spray supply system 10 are liquids which, preferably, have a viscosity at high cutting speed greater than about 60 centipoise.; more preferably, a viscosity at high cutting speed of from about 80 centipoise to about 300 centipoise; and, more preferably, a high cut-off viscosity of from about 80 cetipoises to about 170 centipoises. When these relatively viscous liquids are dispensed, the pump device 20 must have liquid paths or conduits that are preferably large enough to prevent pressure drops when pressure drops are undesirable. The liquid paths such as for example the inlet conduit 23, the pump chamber 28 and the discharge conduit 27 are all preferably substantially cylindrical or tubular in shape and have internal diameters which are preferably equal to or greater than about 0.125 inches (0.318). cm). The constriction of these liquid paths may result in a slow recharge rate of the pump device 20 after actuation. Since the operating principles of the pump devices 20 are themselves well known in general, a brief review of their operation with respect to the spray supply systems 10 in accordance with the present invention is provided. To operate the spray supply system 10 and start or start a dispensing cycle, the trigger 24 is manually operated, by finger pressure, increasing the pressure of the liquid inside the pump chamber 28 causing the liquid to become a pressurized liquid. The pressurized liquid enters the discharge conduit 27. The pressurized liquid travels through the discharge conduit 27 towards the slotted spray nozzle 40 (which is shown in greater detail in the following Figures) and, through the elongated hole 42, in where it is dispensed in the form of a scattered dew. Once the pump device 20 reaches the end of its travel (or the trigger 24 is released during an incomplete delivery cycle) and, the pressure inside the pump chamber 28 decreases and the flow of the liquid out of the pump stops. elongated hole 42. If the trigger 24 is released, then the force of the spring coming from the spring 15 returns the trigger 24 to its initial position (thus sucking liquid through the inlet conduit 23 and into the chamber 28 of the pump pump device 20), where it is ready for the next dispatch cycle. The manually operated pump devices 20 used in the present invention may have a transient hydraulic pressure release cycle. This transient hydraulic pressure is generated during the actuation, since the pressure tends to accumulate gradually during the initial movement of the trigger 24 by the fingers of the operator with the application of the force to dispatch. This pressure reaches a maximum during the start of the dispatch cycle, at some point during the trip of the trigger 24 to the end of the actuation stroke and after that it rapidly decreases once the end or end of the actuation stroke has been reached. . The maximum hydraulic pressure obtains a larger magnitude of approximately 30 psi (206.844 kPa); preferably, the maximum hydraulic pressure can reach a range from about 30 psi (206,844 kPa) to about 200 psi (1378.96 kPa); more preferably, the maximum hydraulic pressure ranges from about 60 psi (413,688 kPa) to about 120 psi (827,376 kPa); and most preferably, the maximum hydraulic pressure is approximately 100 psi (689.48 kPa). When the preferred force for dispensing is applied at a driving speed of from about 3 inches (7.62 cm) per second to about 4 inches (10.16 cm) per second, the time required to achieve this maximum hydraulic pressure is preferably from about 0.4 to approximately 1 second; more preferably, this maximum hydraulic pressure is reached in from about 0.5 to about 0.8 seconds. The sheet or sheet of liquid that will be ejected from the slotted spray nozzle 40 during this transient pressure release cycle expands and contracts widthwise, respectively, with these variations in pressure. Generally, under steady-state pressure conditions (constant pressure / constant flow) liquids dispensed from typical fan-slot type spray nozzles, made from rigid materials, have thickened sheet or sheet edges formed in the outer edges of the dew pattern. However, the expanding and contracting spray pattern, created by the nature of the transient pressure of this spray supply system 10, ensures that the edges of the thickened sheet or sheet do not impinge on the surface to be coated therein. positions throughout the dispatch cycle. In this way, the occurrence of areas of high product concentration on the surface to be coated is reduced or eliminated when this spray supply system 10 is used. This helps to reduce the total amount of liquid required to properly coat an surface with a uniform and evenly distributed layer of the liquid product. Since the spray supply systems 10 of the present invention can be used with a wide variety of liquids, it is preferable that the spray supply system 10 be refillable. Thus, a lid 25 (as seen in Figure 2) is preferably supplied to removably connect the pump device 20 to the container 30. To allow the pump device 20 to be removed from the container 30, both the lid 25 as in the package 30 can be provided with mutually compatible cords or threads. Other different methods of connecting the pump device 20 and the lid 25 to the container 30 may be used, for example, the snap-fit, the torsion lock and the like. When the pump device 20 is removed from the container 30, the container 30 can be filled with liquid product. Additionally, for ease of use and for a cleaner preparation during filling of the package 30, the package 30 may have an enlarged neck opening or crown that will allow the liquid product to be easily emptied into the package 30 from a carton of storage. This also allows the container 30 to be refilled in a shorter period of time since more liquid can pass through the enlarged opening. Preferably, the enlarged opening has a diameter between about 28 mm to about 53 mm. When the package 30 uses an enlarged opening, the lid 25 will be in the form of a transition piece (not shown) adapted to conform to both the enlarged opening of the package 30 and also to the pump device 20. Preferably, the package 30 can be molded per puff using any of the various well known materials, for example, high density polyethylene (HDPE), polyethylene terephthalate (PET) or the like. Figure 3 shows an enlarged perspective view of the slotted spray nozzle 40 for use with this spray supply system 10. The slotted spray nozzle 40 includes a housing 55 which is preferably substantially cylindrical in shape, having one side inlet 46 and one outlet side 44. The housing 55 has a nozzle face 58 with a chamfer 59 located on the perimeter of the nozzle face 58 on the outlet side 44. With reference to Figure 4, the spray nozzle slotted 40 is observed with elongated hole 42 in a centrally located position and is preferably substantially elliptical in shape. The elongated hole 42 may also be in the form of, for example, a slot, a slit, a notch or the like, as long as the opening is substantially elongated. The main dimension of the elongated hole 42, as seen in Figure 4, is the largest of the dimensions of the elongated hole 42. The smaller dimension of the elongated hole 42 is the length of the line perpendicular to the main dimension and bisects thereto. . The elongated hole 42 preferably has a main dimension that is from about 0.03 inch (0.08 cm) to about 0.05 inch (0.13 cm); and, more preferably, the main dimension ranges from about 0.035 inches (0.089 cm) to about 0.041 inches (0.104 cm). The elongated hole 42 preferably has a smaller dimension of from about 0.008 inches (0.02 cm) to about 0.017; and, more preferably, the smaller dimension ranges from about 0.010 to about 0.012 inches (0.03 cm). The ratio of the major or major dimension to the smallest dimension of an article is known as the dimensional relationship. The dimensional ratio of the elongated hole 42 is preferably from about 3 to about 4; and, more preferably ranges from about 3.4 to about 3.8. With reference to Figures 5A and 5B, a cross-section of the slotted spray nozzle 40 is observed. The housing 55 has an internal recess 45 extending through the inlet side 46 that terminates in an elongated hole 42 on the side outlet 44. The internal recess 45 preferably has a dome-shaped inner surface 47 therein and the outlet side 44 also has therein a groove 48 which intersects the internal recess 45 and the inner surface 47 for forming the elongated hole 42. This groove 48 is cut or formed in the face 58 of the nozzle of the housing 55. The slotted spray nozzle 40 having the internal recess 45 which is connected in liquid communication with a distal end of the discharge conduit. 27, in such a way that the liquid passing through the discharge conduit 27 flows through the slotted spray nozzle 40 and converges towards the elongated hole 42 and, is dispensed from the in a scattered spray. The slotted spray nozzle 40 includes the internal recess 45 which preferably has a shoulder 65 located between the outlet side 44 and the inlet side 46. The discharge tube 26 abuts the shoulder 65 when the slotted spray nozzle 40 is connected. suitably with the pump device 20 such that the elongated hole 42 is in liquid communication with the pump device 20. The internal recess 45 is used to drive the liquid from the discharge conduit 27 to the elongated orifice 42 Preferably, the portion of the internal recess 45 extending from the inlet side 46 is cylindrical in shape and has an internal diameter that is spaced inwardly in the shoulder 65 and, thereafter, the internal recess 45 makes a transition towards the interior surface 47 in the form of a dome on the outlet side 44. The portion of the internal recess 45 extending between the shoulder 65 and the interior surface 47 in the shape of dome has an internal diameter that is preferably from about 0.02 inches (0.05 cm) to about 0.1 inches (0.25 cm); more preferably, from about 0.03 to about 0.06 inches (0.15 cm); and, most preferably, about 0.04 inches long. Optionally (as seen in Figure HA and 11B), multiple shoulders 165a, 165b, and 165c can be used to reduce the internal diameter of the internal recess 445 stepwise or stepwise. In the configuration observed in Figures 5A and
5B, the internal cords or threads 52 are included in the internal recess 45 on the inlet side 46 of the slotted spray nozzle 40. These internal cords 52 engage the external cords 53 located at the distal end of the discharge tube 26. so that the slotted spray nozzle 40 is threadably connected to the discharge pipe 26. Various sizes of rope or thread can be used as well as various other mechanical methods for connecting the slotted spray nozzle 40 with the discharge pipe 26. For example, an alternative method for connecting the discharge tube 26 with the slotted spray nozzle 40 may be a snap-fit connection or coupling connection. The inner surface 47 is preferably dome-shaped, that is, it resembles or has a shape similar to a substantially hemispherical dome or, in the form of a substantially spherical portion. The inner surface 47 most preferably has a hemispherical diameter that is substantially equal to the internal diameter of the internal recess 4b. The outlet side 44 has a groove 48 cut through it that intersects the interior surface 47 that forms the elongated hole 42. During a dispatch cycle of this spray supply system 10, the transition of the internal recess 45 towards inner dome-shaped surface 47 is what causes the convergence of liquid flow lines towards elongated hole 42 at high current speeds when the liquid is forced through slotted spray nozzle 40. The shape of the orifice elongated 42 forces the flow lines of the liquid to form a sheet or sheet of flat liquid oriented parallel to the main dimension of the elongated hole 42 upon exiting or being dispensed from the confines of the slotted spray nozzle 40. external to the slotted spray nozzle 40, the sheet or sheet of liquid forms ligaments and, after this, droplets that disperse or disintegrate in a spray atomize do or scattered. The dispersed liquid droplets may be dispersed in a fine form, such that an atomized spray or droplets dispersed in an even thicker form representing larger droplets of liquid. When this dispersed spray makes contact with the surface to be coated with liquid, a thin and uniform liquid coating is produced. While a variety of grooved spray nozzles 40 of the present invention may be suitable for use in the spray supply system 10 of the present invention, the grooved spray nozzle 40 resembles the type of nozzle configuration normally used in industrial roll applications. . Slotted spray nozzles 40 of this general type have an orifice configuration similar to commercially available versions and sold by Lechler, Inc., according to model No. 652,276, which has the trade name "mini fan". An alternate embodiment of the slotted spray nozzle 40 can be manufactured as a unit, by machining the strings in model No. 652.276 of the "mini fan" nozzle, and then connecting a bushing or sleeve to the nozzle so that it is connected in liquid communication with the discharge conduit 27 of the pump device 20. While the slotted spray nozzle 40 can be made as a unit, the preferred embodiment is a unitary construction or construction resulting in a one-piece slotted spray nozzle 40. . In particular, the spray supply system 10 and the slotted spray nozzle 40 in accordance with the present invention can be manufactured or manufactured in any suitable form. A presently preferred method for forming the slotted spray nozzle 40 is by injection molding. In one embodiment, this slotted spray nozzle 40 can be molded or machined from any number of well-known rigid materials, such as for example, polypropylene (PP), polystyrene (PS), polytetrafluoroethylene (PTFE), polyvinyl chloride (PVC) / polyvinylidene fluoride (PVDF), aluminum, brass, steel or other metals or the like. In an even more preferable embodiment, the slotted spray nozzle 40 can be made of an elastomeric or rubber-like material that resiliently distorts or expands flexibly allowing solid particles having particle dimensions greater than the smallest dimension of the orifice elongated 42, pass through slotted spray nozzle 40, thereby reducing the likelihood of plugging. Referring now to Figure 6, there is shown a first alternative slotted spray nozzle 40 including a housing 555 having an inner layer or first segment 530 at the inlet end 546 and an outer layer or second segment 525 at the outlet end 544. The inner layer or layer 530 is preferably made of a rigid material, although it can be made of an elastomeric material. The outer layer or layer 525, preferably made of an elastomeric material, includes the elongated hole 542 and, preferably, includes the face 558 of the nozzle. The inner layer 530 includes an internal recess 545 having internal cords 552 that engage with the outer cords 53 at the distal end of the discharge tube 26. The inner layer 530 is connected to the outer layer 525 preferably using an adjusting coupling to the outer layer 525. click. The snap fit coupling is created or formed by a circumferential rib 531 extending radially outwardly from the inner layer 530 which engages a circumferential channel 526 that is formed in the outer layer 525. Since the layer The outer 525 is made of an elastomeric material, it can be resiliently distorted, allowing the channel 526 and the rib 531 to fit in a snap-fit manner. Referring now to a second alternative slotted spray nozzle 640, as seen in Figure 7, the front layer or second segment 625, preferably made of an elastomeric material, is in the form of a nozzle tip 600 on the outlet side 644 of the slotted spray nozzle 640 and the rear layer or first segment 630 extends from the tip 600 of the nozzle to the inlet side 646. The second segment 625 includes the slot 642 and, preferably, the portion of the internal slot 645 which has the inner surface 647 in the shape of a dome. In this way, the outlet side 644 having therein formed elongated hole 642 is made of an elastomeric material which substantially reduces the likelihood of plugging during use. The front layer 625 is preferably integral with, is attached to, is adhered to the back layer 630. Preferably, these layers are made integral by, for example, co-injection molding in one piece or by co-injection molding in two. separate layers or even in a double component injection molding. Alternatively, the slotted spray nozzles 540 and 640 can be made from separate parts attached or secured using various other methods without detracting from the invention disclosed herein. The front layer 625 and the back layer 630 can be fastened using for example, an adhesive, a threaded coupling, a mechanical fastener or the like. Referring now to Figure 8, there is shown a third grooved alternative spray nozzle 740 including a housing 755 and an insert 756. The insert 756 has formed therein an elongated hole 742 and the side of the insert 756 opposite the elongated hole 742 The inner recess 745 further includes an interior surface 750 having a first coupling ring 754 located on the outlet side 744 of the housing 755. The first coupling ring 754 extends radially inwardly from the interior surface. 750 and terminates at a radially spaced location outwardly of the elongated hole 742. The insert 756 will be maintained within the internal recess 745 by this first coupling ring 754. The insert 756 is made of an elastomeric material that allows the elongated hole 742 to be distort resiliently substantially reducing in this way the probability of plugging during use. Alternatively, a second coupling ring 753 may be provided in an axially spaced position towards the inlet end 746 and away from the first coupling ring 754, preferably a distance approximately equivalent to the axial thickness of the insert 756. The second coupling ring 753 extends radially inwardly from the inner surface 750 and terminates at a radially spaced location outwardly of the dome surface 747. The first and second coupling rings 754 and 753 form a circumferential groove that can cooperate with the resilient nature of the elastomeric material of the insert 756 to form a snap fit coupling between the insert 756 and the housing 755. The elastomeric materials as used herein may, for example, and not limitingly, fall into one of the following categories: elastomers thermoplastics (TPEs), thermoset elastomers, ethylene / octene copolymers (or butene or hexene, etc.), ethylene / vinyl acetate (EVA) copolymers and / or mixtures of these categories. They follow more concise descriptions and examples of these categories of elastomeric materials. In particular, TPEs are defined by ASTM D1556 as: "a family of rubber-like materials that, unlike conventional vulcanized rubber, can be processed and recycled as thermoplastic materials" and are classified into three main categories: 1) block copolymers; 2) rubber / thermoplastic mixtures; and, 3) elastomeric alloys (EAs). More specifically, the block copolymers are, for example, styrenic rubber, (eg, Kraton '' 'from Shell Chemical), copolyester (e.g. Hytrel® from Du Pont), polyurethane (e.g., Texin * 1 from Bayer ) and, polyamide (for example, Pebax® from Atochem.). Rubber / thermoplastic blends that can also be referred to as elastomeric polyolefins or TEOs are, for example, mixtures of ethylene-propylene-diene-monomer rubber (EPDM) and polyolefin (eg, Vistaflex® of Advanced Elastomer Systems, LP) and mixtures of nitrile rubber and PVC (for example, Vynite® by Dexter). The EAs are systems with dynamically vulcanized elastomers (EPDM, nitrile, natural rubber and butyl rubber) in the presence of a thermoplastic matrix (preferably PP), for example, Santoprene® by Advanced Elastomer Systyems, L.P. More detailed information about TPEs can be found in the scientific literature, for example, see: M.T. Payne and C.P. Rader, "Thermoplastic Elastomers: A Rising Star" in ELASTOMER TECHNOLOGY HANDBOOK, N. P. Cheremisinoff, (ed.), CRC Press, Boca Raton, FL (1993); and Legge, N.R., et al., (eds.), THERMOPLASTIC ELASTOMERS, Hansen Pub., New York (1987). Some typical examples of thermoset elastomers are, for example, Silastic® silicone elastomers from Dow Corning, Viton fluoroelastomers from Du Pont, and Buna rubbers from American Gasket and Rubber Co .. In addition, some examples of ethylene copolymers are, for example, , Dow's Engage® resins (these resins are copolymers of ethylene and octene prepared using metallocene technology) and Flexomer® of Union Carbide (with butene and / or hexene.) Additionally, some examples of EVA copolymers are, for example, Quantone Ultrathene® and Du Pont ELVAX® resins Other classifications of elastomeric materials are based on material properties rather than physical or chemical compositions.Some of the relevant properties of the material are hardness, Young's modulus. tension) and the flexural modulus and, the tensile and flexural strengths The hardness of the material is measured in accordance with ASTM D2240 standards ISO 868. The hardness scales Shore A and D are used for these elastomeric materials and scale D denoting harder materials. The standards for stress tests are ASTM D412 (ISO 37) or ASTM D638 (ISO R527) and for flex tests are ASTM D790 (ISO 178). Preferably, the hardness of the elastomeric material used in the manufacture of the slotted spray nozzle 40 is between about 40 Shore A to about 15 Shore D and, more preferably, between about 65 Shore A to about 50 Shore D and, more preferably between about 80 Shore A to about 40 Shore D. The flexural modulus of the elastomeric material used in the construction of the slotted spray nozzle 40 is preferably between about 1,000 psi (6.9 MPa) to about 25,000 psi (124.1 MPa) and, more preferably, between about 2,000 psi (13.8 MPa) to about 15,000 PSI (69.0 MPa) and, most preferably, between about 3,000 PSI (20.7 MPa) to about 9,000 PSI (41.4 MPA). A rigid material as used herein, is preferably a material with hardness above about 60 Shore D. Any of these mixtures or various other mixtures or similar mixtures of elastomeric materials can produce a slotted spray nozzle 40 which is capable of spraying liquids laden with solids without any significant or permanent clogging incident, even when the liquids dispensed contain suspended particulate solids of sizes slightly larger than the smaller dimension of the elongated orifice 42. The solid particulates of sizes slightly larger than the smallest dimension, preferably they are particulates of sizes between approximately the size of the smaller dimension of the elongated hole 42 to approximately the size of the internal diameter of the internal recess 45. The smaller dimension of the elongated hole 42 is measured in the idle state, not at the moment when the liquid is passing through the elongated orifice 42. For example, when dispensing a liquid charged with solids using an elastomeric material having a hardness of between about 30 Shore D to about 40 Shore D, the slotted spray nozzle 40 experiences approximately 1 temporary tampon for every 10,000 cycles. As used herein, temporary plugging is when the slotted spray nozzle 40 recovers or unclogs itself in less than about 15 subsequent cycles. The ability of the slotted spray nozzle 40 made of an elastomeric material for spraying liquids with suspended solid particulates or with agglomerated solid particulates formed either behind the slotted spray nozzle 40 or in the suspension liquid, is attributed to the elastomeric nature of the slotted spray nozzle 40 and, more particularly, to the elastomeric nature of the elongated hole 42 or to the nozzle face 58 which is part of the slotted spray nozzle 40 surrounding the elongated hole 42. It is believed that, during a cycle of dispatch (i.e., under dynamic conditions), a solid particulate with a maximum dimension greater than the minor dimension of the elongated orifice 42, measured at rest
(ie, under static conditions), it can initially and temporarily plug the elongated hole 42, thereby causing an increase in pressure behind the obstruction, which in turn causes the elongated hole 42 to be resiliently distorted. and / or expanding so that the minor dimension of the elongated hole 42 is temporarily increased enough to allow the solid particle to pass through and be dispensed together with the liquid in a dispersed spray. The elongated hole 42 of the slotted spray nozzle 40 made of a rigid material can not be resiliently distorted like the elastomeric material and, thus, when a liquid with large amounts of suspended solid particulates or with agglomerates of solid particulates is used, the Slotted spray nozzle 40 can possibly be covered. However, this clogging probability is significantly reduced when compared to currently available double-incident systems and when they are discharged to the same liquids laden with similar solids or liquids. When dispensing liquids from the slotted spray nozzle 40 made with an elastomeric material, a spray pattern of substantially circular shape is achieved as a result of the distortion of the elongated hole 42 under dynamic conditions. This substantially circular spray pattern preferably has a dimensional ratio less than about 1.6 and, more preferably, has a dimensional ratio of between about 1.2 to about 1.6. When rigid material is used to manufacture the slotted spray nozzle 40, an asymmetric or fan-shaped spray pattern is produced when the liquid is dispensed from this spray supply system 10. Generally, this spray pattern in the form of The fan consists of dispersed droplets of liquid arranged or arranged in such a way that a cross section of the fan-shaped spray pattern is elongated, elliptical or oblong in shape. The fan-shaped spray pattern generated when dispensing liquid from the slotted spray nozzle 40 made of a rigid material preferably has a dimensional ratio greater than about 1.6 and, more preferably, the dimensional ratio is between about 1.6 to about 3. These dimensional relationships are for dew patterns generated from grooved spray nozzles 40 made of elastomeric materials and rigid materials having both substantially identical dimensions and the dimensional relationships of the spray patterns are determined by the measurement of the diameters of the spray patterns at a distance of about 8 inches (20.32 cm) from the elongated hole 42. In addition, the chemical and physical compositions of the material, as well as its material properties, need to be considered when selecting a material for a slotted spray nozzle. , especially when the liquid that will be dispensed can chemically attack the material (for example, it dissolves the material or is strongly absorbed in the material) or it can react chemically with the material (for example, contamination of liquid due to the extraction of material components) . If this strong chemical interaction between the material and the liquid does not exist, then the physical properties of the material only need to be considered in selecting an appropriate material for the slotted spray nozzle 40. An example of a combination of a liquid and an elastomeric material which can have a strong interaction is the cooking oil and either the styrenic rubbers, the EA and / or TEO. These elastomeric materials contain plasticizers that can be extracted by the cooking oil, thus contaminating the cooking oil. It is for this reason that these particulate elastomeric materials do not comply with the appropriate regulation 21 CFR Section 177.2600 of the FDA of the U.S.A. (for "rubber articles that will have repeated use") and should not be used on a slotted spray nozzle 40 used to atomize cooking oil. Other pertinent regulations of the FDA of the U.S.A. are, for example: the 21 CFR Section 177.1210 for "closures with seal packaging for food packaging"; 21 CFR Section 177.1350 for "ethylene / vinyl acetate copolymers"; 21 CFR Section 177.1520 for "olefin polymers"; 21 CFR Section 177.1590 for "polyester elastomers"; and 21 CFR Section 177.1810 for "styrene block copolymers".
A fan-shaped spray pattern is generated when dispensing liquid from a slotted spray nozzle 40 made of a rigid material, it is convenient to assist the operator by indicating the alignment or orientation of the spray pattern in the form of a fan. This can be achieved by optionally adding one or more visual or visual / functional particularities, such as for example the visual alignment pins 50, 51 observed in Figure 4 in the slotted spray nozzle 40. As seen in Figures 1, 3 and 4, the visual alignment pins 50, 51 are preferably oriented, such that they are aligned with the major or major axis of the elongated hole 42. When the visual alignment pins 50, 51 are in a vertical orientation, in the same way, the main axis of the elongated hole 42 will be in a vertical orientation and, thus, the liquid will be dispensed from the slotted spray nozzle 40 in such a way that the fan-shaped spray pattern is delivered in a predictable orientation. Similarly, when turned to the slotted spray nozzle 40, the operator will still be able to predict the orientation of the fan-shaped spray pattern that will emerge. Therefore, the operator can easily and effectively apply a thin and uniform coating of the liquid on the surface to be coated. FIG. 9 shows a V-shaped groove 48 in the slotted spray nozzle 40. This V-shaped groove 48 has an angle? (teat), which represents the average included angle of the groove 48 measured along the main dimension of the elongated hole 42. As defined herein, the angle? necessarily will have some value between about 0o to about 180 °, the 0o represent a groove 48 with parallel sides and the 180 ° do not represent any groove 48 on the output side 44. The angle? which will be used in the slotted spray nozzle 40 of the present invention, is preferably between about 20 ° to about 90 °; more preferably, between about 30 to about 50 °; and, most preferably, it ranges from about 41 to about 44 ° when used with cooking oil. It has been found that a triangular or V-shaped prism groove 48 and a hemispherical inner surface 47 in liquid communication with a cylindrical liquid inlet such as for example internal recess 45 will work well to produce the sheet or sheet of liquid that is disintegrates in a scattered spray. In a fourth alternative embodiment of the slotted spray nozzle 140 observed in Figure 10A, a cavity 161 is located on the exit side 144. The cavity 161 extends from the face 158 of the nozzle to the bottom 163 of the cavity which it is axially separated from the inner surface 147. The groove 148 cut through or formed in the bottom 163 of the cavity intersects the inner surface 147 that forms the elongated hole 142. This groove 148 may be, for example, in the form of a groove or, even, with a substantially elongate frusto-conical shape. The cavity 161 is cup-shaped or cup-shaped and provides a recessed area around the elongated hole 142. This cavity 161 may have various geometrical shapes, for example, concave, frusto-conical, cylindrical, rectangular and the like. The cavity 161 functions as a reservoir and helps prevent excessive dripping of liquid from the slotted spray nozzle 140 after finishing a dispensing cycle. Figure 10A further represents an alternative configuration of the inner surface 147 which is shown in a substantially planar configuration and may be made, for example, of a flexible membrane or of a substantially resilient material such as for example an elastomeric material. While the preferred configuration of the interior surface 147 is substantially dome-shaped, other configurations may also be used for the inner surface 147 which provides the convergence of the liquid towards the elongated hole 142. For example, the inner surface 147 may also be substantially conical, concave, curved, frusto-conical, tapered and the like or any combination of these configurations. The fifth alternative embodiment of slotted spray nozzle 240 observed in Figure 10B has an internal recess 245 with double domed interior surfaces 247a and 247b. The two grooves 248a and 248b are also provided arranged or arranged together, whereby the inner surfaces 247a and 247b form two elongated holes 242a and 242b. These double elongated holes 242a and 242b allow the liquid to be dispensed in a twin dew pattern. The grooves 248a and 248b are centered on the dome-shaped inner surfaces 247a and 247b of the embodiment observed in Figure 10B. In Figure 10C, the grooves 348a and 348b are offset from the center position on the dome-shaped interior surfaces 347a and 347b. The alignment or placement of the grooves 348a and 348b together with the variations in the angle? they can allow the spray pattern to be adapted or adjusted to the taste so that a wider coverage area can be obtained. Additionally, the spray patterns emerging from the individual elongated holes 342a and 342b may overlap or be directed to different positions on the surface to be coated, providing an improved distribution of the dispersed spray on the surface. Although only two elongated holes 342a and 342b are observed in Figure 10C, additional elongated holes 342a and 342b can be provided. The spray supply system 10 of the present invention can be used to virtually dispatch any liquid product in a more controlled and more consistent manner. However, it has been found to be particularly advantageous to use the spray supply system 10 for dispensing viscous and / or liquid liquids laden with solids. Examples of these liquids include, but are not limited to: cooking oils, coatings for pans, flavored oils, liquid flavor enhancers, mouthwashes, inks, hair sprays, lubricating oils, liquid soaps, cleaning solutions, detergents for laundry, dishwashing detergents, pretreators, hard surface cleaners, paints, polishers, window cleaners, cosmetics, rust preservatives, surface coatings and the like. Liquids laden with solids suitable for use in the present invention can have a significant amount of solid materials suspended therein, preferably, up to about 3% by weight of solid particulate.; more preferably, up to about 6% solid particulate; and, more preferably, up to about 10% by weight of solid particulate material. When the slotted spray nozzle 40 is made of a rigid material, the dimensions of the particle are preferably less than about the smaller dimension of the elongated hole 42. When the slotted spray nozzle 40 is made of an elastomeric material, the dimensions of the The particles are preferably smaller than approximately the internal diameter of the internal recess 45 in the interior surface 47 in the form of a dome. The level of solids and the size of the solid particles that may be contained or suspended in the liquid loaded with solids can vary from liquid to liquid and, it is important to control the quantity and size of the solid particles contained in the liquid, with in order to reduce the clogging probability of the slotted spray nozzle 40. Preferred liquids for use in the spray supply system 10, are sprays for cooking based on vegetable oil. These products are often formulated with a large percentage (from about 80 to 100% by weight) of vegetable oil and are relatively viscous and can also be loaded with solids. Normally, these products include lower percentages of lecithin, emulsifiers and flavor enhancers together with other ingredients and, solids, for example, solid flavorings, fat crystals, salts or other solid particulate material used to increase the performance of the liquid product, see, for example, U.S. Patent No. 4,385,076, issued May 24 to Crosby, and U.S. Patent No. 4,384,008, issued May 17, 1983 to Millisor. A particularly preferred cooking oil which has performed well with the spray supply system 10 of the present invention comprises vegetable oil, salt particles, lecithin, solid flavor particles, carotene and other liquid flavors; wherein, from about 95% to about 100% of the flavor particles in the non-agglomerated state have a maximum particle dimension of less than about 425 microns (through the 40 mesh U.S. sieve); from about 15% to about 40% of the particles have a maximum particle size greater than about 75 microns (on the U.S. sieve of 200 mesh); from about 30% to about 50% of the particles have a maximum particle size greater than about 53 microns (over the U.S. sieve of 270 mesh); and, from about 35% to about 60% of the particles have a maximum particle size of less than about 38 microns (through the US sieve of 400) and, where approximately 99.9% of the particles of salt in the non-agglomerated state. they have a maximum particle dimension less than about 25 microns and, the weighted average particle dimension is less than about 10 microns. As used herein, the term "particle dimension" refers to the width or total diameter of the particle. The slotted spray nozzle 40 can optionally have a particularity of manual or cleaning closure observed in Figures HA and 11B. In this embodiment, a manually retractable post 60 is fixed at the distal end of the discharge conduit 27, so as to allow liquid to flow through the discharge conduit 27 in an open or retracted position (see Figure 11A). The manually retractable post 60 is connected to the discharge tube 26 by the straps 67 extending radially outwardly from the post 60. This manually retractable post 60 is used to assist in closing the elongated hole 42 when the slotted spray nozzle 40 is find in the non-operational or closed position (see in Figure 11B). The manually retractable post 60 cooperates with the inner surface 47, in such a way, it is movable between an open position and a closed position in order to block or close the elongated hole 42. Preferably, the manually retractable post 60 has a contour and a size that is substantially the same as that of the surface interior 47. This manually retractable post 60 can help protect the liquid from exposure to the surrounding environment when closed and can also help to clean or clear any obstructions in the slotted spray nozzle 40 by ejecting or pushing out any obstructions (eg, example, particles, solids, agglomerates) from the internal recess 445 and through the elongated hole 42. In this embodiment, the manually retractable post 60 can be retracted or, the elongated hole 42 opened and closed by rotating the slotted spray nozzle 40 on the external strings 53 of the discharge tube 26. The threaded coupling between the internal cords 52 in the nozzle of the r slotted hole 40 and the outer strings 53 in the discharge tube 26 allows translational movement between the manually retractable post 60 and the elongated hole 42. The rotation of the slotted spray nozzle 40 on the strings will move the post manually retractable 60 towards the elongated hole 42 or away from the elongated hole 42. Optionally, this transition movement can be achieved using many other mechanical methods such as for example, a sliding coupling or the like. More preferably, the manually retractable post 60 can be sufficiently retracted from the elongated hole 42 to allow an opening substantially equal to or greater in area than that of the discharge conduit 27 between the manually retractable post 60 and the internal recess 445, so that the post is manually retractable 60 does not obstruct the flow of liquid through the slotted spray nozzle 40. While the currently preferred version of the spray supply system 10 employs a trigger-operated spray-type pump device 20, as depicted in FIG. Figure 1, a pump device 420 of reciprocating finger pump type could also be used in the spray supply system 410 as shown in Figure 12. In this configuration, the finger button 424 replaces the trigger 24 as an actuator. seen in Figure 1. Other depicted elements include a slotted spray nozzle 440 having an elongated hole 44 2, wherein the slotted spray nozzle is incorporated in the finger pump 420, a container 430 (shown only in broken lines) for receiving the liquid, a pump chamber 428 and an inlet tube 422 having an inlet duct 423 therein and extending down into the container 430 from the pump chamber 428. In this reciprocating pump pump type device 420, the slotted spray nozzle 440 is connected to the finger button 424, so that it is in liquid communication with the discharge conduit 427 of the discharge tube 426 and, the button 424 for finger engages reciprocatingly with a piston 429 which is slidably fitted within the pump chamber 428 in order to effect actuation or actuation of the spray supply system 410. For the typical operation of this pump reciprocating finger, see, for example, U.S. Patent No. 4,986,453 issued January 22, 1991 to Lina et al. Although particular versions and embodiments of the present invention have been shown and described, various modifications may be made to the spray supply system 10 and the method of assembly or operation thereof without deviating from the teachings of the present invention. The terms used in describing the invention are used in their descriptive sense and not as limiting terms, it is intended that all equivalents thereof be included within the scope of the appended claims.
Claims (20)
- CLAIMS: 1. A sustainable spray supply system in hand to dispense a liquid, the spray supply system comprises: a container adapted to house the liquid; a pump device manually operated, and mounted on the container, the pump device includes an inlet duct, a pump chamber and a discharge duct having a distal end, all are connected in liquid communication, so that the liquid it can be pumped from inside the container, through the inlet conduit to the pump chamber and, through the discharge conduit with the manual actuation of the pump device; a spray nozzle including a housing having an inlet side and an outlet side, the housing having an internal recess through the inlet side ending in an elongated hole in the outlet side; the internal recess is connected in liquid communication with the distal end of the discharge conduit, such that the liquid passing through the discharge conduit flows through the spray nozzle and converges towards the elongated orifice and is dispensed from the same in a scattered spray.
- 2. The hand-held sustainable spray supply system according to claim 1, wherein the liquid has a viscosity of from about 80 to about 300 centipoise.
- 3. The hand-held spray supply system according to claim 1, wherein the liquid comprises a cooking spray based on vegetable oil.
- 4. The hand-held sustainable spray supply system according to claim 1, further comprising a manually retractable post, the manually retractable post being fixed to the distal end of the discharge conduit and movable between an open position and a closed position, the open position allows the liquid to flow through the discharge duct around the manually retractable post. The sustainable spray supply system in the hand according to claim 1, wherein the spray nozzle further comprises an insert, the insert is contained within the housing and the insert has formed therein the elongated hole, the internal recess further includes an inner surface and a coupling ring, the coupling ring is located on the outlet side of the housing, the coupling ring extends radially inwardly from the inner surface and ends in a radially outwardly spaced position from the elongated hole , the insert will remain inside the internal recess through the coupling ring. 6. The hand-held sustainable spray supply system according to claim 5, wherein the insert is made of an elastomeric material that allows the elongated hole to be resiliently distorted during use. The sustainable spray supply system in the hand according to claim 1, wherein the outlet side includes therein a groove, which intersects the internal recess to form the elongated hole. 8. The sustainable spray supply system in the hand according to claim 7, wherein the groove is a V-shaped groove. 9. The sustainable spray supply system in the hand according to claim 1, wherein the nozzle The dew point is made of an elastomeric material that allows the elongated hole to be resiliently distorted during use. 10. The sustainable spray supply system in the hand according to claim 9, wherein the liquid comprises a liquid loaded with solids. 11. The hand-held sustainable spray delivery system according to claim 10, wherein the liquid loaded with solids contains up to about 10% solid particulate material. 12. A sustainable spray supply system in hand to dispense to a liquid, the spray supply system comprises: a container adapted to house the liquid; the liquid is a relatively viscous liquid and charged with solids; a manually operated pump device mounted on the container, the pump device includes an inlet duct, a pump chamber and a discharge duct having a distal end, all connected in liquid communication, so that the liquid is pumped from inside the container, through the inlet conduit, towards the pump chamber and through the discharge conduit with the manual actuation of the pump device; a spray nozzle including a housing having an inlet side and an outlet side, the housing has an internal recess through the inlet side that ends in an elongated hole in the outlet side, the internal recess has in the same a domed inner surface, the outlet side has therein a groove that intersects the inner surface to form the elongated hole, the inner recess is connected in liquid communication with the distal end of the discharge conduit , so that the liquid passing through the discharge conduit flows through the spray nozzle and converges towards the elongated orifice and is dispensed therefrom in a dispersed spray. The sustainable spray supply system in the hand according to claim 12, wherein the housing further includes a first segment fixed to a second segment, the first segment being located on the entry side having an internal recess extending through it and, the second segment is located on the outlet side thereof having an elongated hole, the second segment is made of an elastomeric material, the elastomeric material allows the elongated hole to be resiliently distorted, substantially reducing in this way the probability of tamponade during use. 14. The sustainable spray supply system in the hand according to claim 13, wherein the elastomeric material is a thermoplastic copolyester. 1
- 5. The hand-held sustainable spray supply system according to claim 13, wherein the elastomeric material has a hardness of between about 40 Shore A up to about 60 Shore D. 1
- 6. The sustainable spray supply system in the hand according to Claim 13, wherein the elastomeric material has a flexural modulus of between about 1,000 psi (6,895 MPa) to about 25,000 psi (172.37 MPa). 1
- 7. A sustainable spray supply system in hand to dispense a liquid, the spray supply system comprises: a container adapted to house the liquid; the liquid is a cooking spray based on vegetable oil having a viscosity of from about 80 to about 300 centipoises and, it is a liquid loaded with solids; a manually operated pump device mounted on the container, the pump device includes an inlet duct, a pump chamber and a discharge duct having a distal end all are connected in liquid communication, so that the liquid can be pumped from inside the container, through the inlet conduit, towards the pump chamber and through the discharge conduit with the manual actuation of the pump device; a spray nozzle including a housing having an inlet side and an outlet side, the inlet side is made of an elastomeric material, the elastomeric material has a hardness of from about 40 Shore A to about 60 Shore D and , the elastomeric material further has a flexural modulus of between about 1,000 psi (6,895 Mpa) to about 25,000 psi (172.37 MPa), the housing has an internal recess through the inlet side that ends in an elongated hole in the side of the housing. outlet, the internal recess has therein an interior surface in the shape of a dome, the outlet side has therein a groove that intersects the interior surface to form an elongated hole, the inner recess is connected in liquid communication with the distal end of the discharge conduit, so that the liquid passing through the discharge conduit flows through the spray nozzle and converges towards the elongated orifice, the elastomeric material it allows the elongated hole to be distorted resiliently, thereby substantially reducing the likelihood of plugging when the liquid will be dispensed therefrom in a dispersed spray. 1
- 8. The hand-held sustainable spray supply system according to claim 17, wherein the pump device further comprises a trigger operated sprinkler that includes a trigger and a piston, the trigger serves as an actuator that engages in reciprocating with the piston, the piston is slidably fitted inside the pump chamber in order to effect the actuation of the spray supply system. 1
- 9. The hand-held sustainable spray supply system according to claim 17, wherein the pump device further comprises a reciprocating finger pump having a finger button and a piston, the spray nozzle is connected to the finger button , so that it is in liquid communication with the discharge conduit, the finger button engages reciprocatingly with the piston, the piston is slidably fitted inside the pump chamber in order to effect the actuation of the system of spray supply. 20. The hand-held sustainable spray supply system according to claim 17, wherein the cooking spray based on vegetable oil includes salt particles. SUMMARY OF THE INVENTION A sustainable spray supply system is provided in the hand (10) for dispensing a relatively viscous liquid and / or a liquid charged with solids. This spray supply system (10) includes a container (30) adapted to house the liquid. A manually operated pump device (20) is mounted on the container (30) The pump device (20) includes an inlet conduit (23), a pump chamber (28) and a discharge conduit (27) having a distal end connected in liquid communication, so that the liquid is pumped from the inside from the container (30), through the inlet conduit (23), to the pump chamber (28) and through the discharge conduit (27) with the manual actuation of the pump device (20). Also included is a slotted spray nozzle (40) including a housing (55) having an inlet side (46) and an outlet side (44), the housing (55) having an internal recess (45) at through the inlet side (46) ending in an elongated hole (42) on the outlet side (48); the internal recess (45) is connected in liquid communication with the distal end of the discharge conduit (27) in such a way that the liquid passing through the discharge conduit (27) flows through the slotted spray nozzle (40). ) and converges towards the elongated hole (42). The liquid is dispensed from it in a scattered spray. The slotted spray nozzle (40) can be made of a rigid material or an elastomeric material. A fan-dispersed spray pattern is generated when the nozzle (40) is manufactured using a rigid material, however, when an elastomeric material is used, the nozzle (40) is capable of ejecting particles larger than the largest dimension. small of the elongated hole (42), substantially reducing in this way the probability of plugging. Various versions of the spray supply system (10) are illustrated, which include a trigger-operated spray and a pump (20) with reciprocating finger.
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
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US625833 | 1990-12-11 | ||
US499753 | 1995-07-07 | ||
US08/499,753 US5639025A (en) | 1995-07-07 | 1995-07-07 | High Viscosity pump sprayer utilizing fan spray nozzle |
US60455696A | 1996-02-21 | 1996-02-21 | |
US604556 | 1996-02-21 | ||
US08/625,833 US5642860A (en) | 1995-07-07 | 1996-04-01 | Pump sprayer for viscous or solids laden liquids |
PCT/US1996/006283 WO1997002896A1 (en) | 1995-07-07 | 1996-05-03 | Pump sprayer for viscous or solids laden liquids |
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MXPA97008390A true MXPA97008390A (en) | 1998-02-01 |
MX9708390A MX9708390A (en) | 1998-02-28 |
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MX9708390A MX9708390A (en) | 1995-07-07 | 1996-05-03 | Pump sprayer for viscous or solids laden liquids. |
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EP (1) | EP0837733A1 (en) |
JP (1) | JP2001518000A (en) |
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-
1996
- 1996-04-01 US US08/625,833 patent/US5642860A/en not_active Expired - Lifetime
- 1996-05-03 CN CN96194477A patent/CN1073471C/en not_active Expired - Fee Related
- 1996-05-03 JP JP50578697A patent/JP2001518000A/en not_active Ceased
- 1996-05-03 TR TR97/01273T patent/TR199701273T1/en unknown
- 1996-05-03 AU AU58531/96A patent/AU712458B2/en not_active Ceased
- 1996-05-03 CA CA002219954A patent/CA2219954C/en not_active Expired - Fee Related
- 1996-05-03 MX MX9708390A patent/MX9708390A/en unknown
- 1996-05-03 EP EP96920131A patent/EP0837733A1/en not_active Withdrawn
- 1996-05-03 CZ CZ19974093A patent/CZ293626B6/en not_active IP Right Cessation
- 1996-05-03 WO PCT/US1996/006283 patent/WO1997002896A1/en active IP Right Grant
- 1996-05-03 BR BR9608096A patent/BR9608096A/en not_active IP Right Cessation
- 1996-05-03 KR KR1019970707767A patent/KR100278496B1/en not_active IP Right Cessation
- 1996-05-03 IL IL11812996A patent/IL118129A/en not_active IP Right Cessation
- 1996-05-03 HU HU9901111A patent/HUP9901111A3/en unknown
-
1997
- 1997-10-31 NO NO975021A patent/NO975021L/en not_active Application Discontinuation
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