US3779464A - Manually actuated liquid spraying device - Google Patents

Manually actuated liquid spraying device Download PDF

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Publication number
US3779464A
US3779464A US00236807A US3779464DA US3779464A US 3779464 A US3779464 A US 3779464A US 00236807 A US00236807 A US 00236807A US 3779464D A US3779464D A US 3779464DA US 3779464 A US3779464 A US 3779464A
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Prior art keywords
piston
valve
chamber
liquid
valve stem
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US00236807A
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C Malone
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WAYNESBORO TEXTILES Inc
AFA CORP
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AFA CORP
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Assigned to WALTER E. HELLER AND COMPANY, INC. reassignment WALTER E. HELLER AND COMPANY, INC. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WAYNESBORO TEXTILES, INC., A CORP. OF VA.
Assigned to FIRST NATIONAL BANK OF BOSTON, THE reassignment FIRST NATIONAL BANK OF BOSTON, THE SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: AFA PRODUCTS, INC.
Assigned to WAYNESBORO TEXTILES, INC. reassignment WAYNESBORO TEXTILES, INC. MERGER (SEE DOCUMENT FOR DETAILS). Assignors: AFA CONSOLIDATED CORPORATION; ARCHIVES FOR ADVANCED FOR ADVANCED MEDIA, INC., WAYN-TEX INC., AND MHA, INC., (MERGED INTO)
Assigned to AFA CORPORATION, THE reassignment AFA CORPORATION, THE CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). FILED ON JULY 5, 1973 Assignors: AFA CORPORATION OF FLORIDA, THE
Assigned to AFA CONSOLIDATED CORPORATION reassignment AFA CONSOLIDATED CORPORATION MERGER (SEE DOCUMENT FOR DETAILS). EFFECTIVE MAY 1, 1981, FLORIDA. Assignors: AFA CORPORATION, THE (CHANGED TO), DSW ACQUIRING CORP.(MERGED INTO)
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0008—Sealing or attachment arrangements between sprayer and container
    • B05B11/0013—Attachment arrangements comprising means cooperating with the inner surface of the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1066—Pump inlet valves
    • B05B11/1067—Pump inlet valves actuated by pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1066—Pump inlet valves
    • B05B11/1067—Pump inlet valves actuated by pressure
    • B05B11/1069—Pump inlet valves actuated by pressure the valve being made of a resiliently deformable material or being urged in a closed position by a spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/04—Draining
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S137/00—Fluid handling
    • Y10S137/901—Biased ball valves with operators

Definitions

  • ABSTRACT A spray device of the type adapted to be mounted as a closure on a container of liquid.
  • the sprayer has a manually actuated pump with valve assemblies which 2; 5 554 i discharge liquid through a spray nozzle substantially t without dribble at the beginning and end of the spray [56] References Cited cycle.
  • This invention relates to spray devices and more particularly to a relatively small manually actuated pump and nozzle device of the type commonly mounted as a closure on a container of liquid,'the liquid being discharged through the nozzle in the form of a spray by an operator manually depressing with one finger a button which actuates the pump of the spray device.
  • uniformity of spray is dependent upon the force applied bythe operator to actuate the pump piston. Since the operator does not apply a uniform force in actuating the'pump, a typical spray cycle starts with a dribble of liquid, rapidly rises to a full spray of nebulized liquid and ends in another dribble of liquid.
  • Objects of this invention are to provide a finger operated pump spray device which produces a spray of nebulized liquid substantially without dribbling of the discharge liquid which controls or meters the amount of liquid discharged, and in which most of the component parts are ideally suited for molding of plastic material of economical manufacture, and readily assembled.
  • FIG. 1 is a vertical sectional view along the longitudinal axis of one embodiment of a pump spray device of this invention shown mounted as a closure on the-neck of a container for a liquid and having a protective cap thereon.
  • FIG. 2 is a vertical sectional view generally similar to FIG. I with the protective cap removed and illustrating the position of the component parts of the device when the piston of the pump is partially displaced along its dispensing stroke.
  • FIG. 3 is a vertical sectional view generally similar to FIG. 2 illustrating the component parts of the device when the piston of the pump is fully displaced to the end of its dispensing stroke.
  • FIG. 4 is a sectional view on line 44 of FIG. 2.
  • FIG. 5 is a fragmentary vertical sectional view of a second embodiment of the spray device of this inven tion with a modified housing connecting the device to a container with an externally threaded neck.
  • FIGS. 6 and 7 are fragmentary vertical sectional views of a third embodiment of the device of this invention illustrating a modification of a check valve assembly with some of the component parts of the device displaced to an extent corresponding generally with FIGS. 2 and 3 respectively. 1
  • FIG. 8 is a sectional view on line 8-8 of FIG. 6.
  • FIGS. 9 and 10 are fragmentary'vertical sectional views of a fourth embodiment of the invention illustrat ing some of the component parts of the device displaced to an' extent corresponding generally with FIGS. 1 and 3 respectively.
  • FIGS. 1-4 illustrate a first embodiment of a manual pump spray device embodying this invention with a generally cylindrical housing 22 mounted on the neck of a container 24 for a liquid to be nebulized and having a protective cap 26 frictionally received over its upper end.
  • Housing 22 issecured to container 24 by an integral lower collar 27 with external threads 28 engaging internal threads 30 in the neck of container 24.
  • Housing 22 is sealed to container 24 by a washer 32 of a resilient sealing material received in a circular groove 34 in a shoulder 36 of housing 22.
  • the upper end of housing 22 has a cylindrical chamber 38 defined by an integral cylindrical side wall 40 and an end wall'42, the connection of these walls being reinforced by four upright ribs 44 spaced at 90 increments.
  • Cap 26 is slidably received and frictionally retained on a reduced diameter shank 46 formed in the outer periphery of sidewall 40.
  • Shank 46 terminates at its free end in an inwardly directed rib 48 which encircles the open upper end of chamber 38.
  • a pump for supplying a liquid under pressure to a spray nozzle 50 is provided by a combined valve body and piston 52 having an outwardly flared integral cup seal 53 at its lower end which is-slidably received in a pump cylinder or chamber 54, piston 52 being actuated on its dispensing stroke by a finger 56 manually depressing an actuator button 58.
  • Piston 52 has a larger diameter hollow valve chamber portion 57 at its upper end which is received in chamber 38 of housing 22 and is yieldably urged axially upwardly by a compression coil spring 60 encircling piston 52 and interposed between a flange 62 thereof and end wall 42. The extent to which piston 52 can be displaced is limited by a recessed stop shoulder 63 in said wall 42.
  • Valve assembly 64 is received in a bore 66 in upper portion 57 of piston'52.
  • Valve assembly 64 has a hollow valve stem 68 slidably received in bore 66 and retained therein by a retainer and guide ring 70.
  • Ring 70 has a web '71 joined to a cylindrical'flange 72 which has an internal rib 72' which cams over and snaps under flange 62 of piston 52 to retain ring 70 on the piston.
  • Valve stem68 has a liquid passageway 74 therein provided by a coaxial blind bore 76.
  • Two ports 78 extend through the side wall of stem 68 adjacent its lower end and communicate withpassageway 74.
  • a nO-ring 80- adapted for sealing engagement with ports 78 is received in a counterbore 82 in portion 57 of piston 52 4 and is retained therein by a stop collar 84 received in bore 66.
  • Valve stem 68 is yieldably urged axially upwardly by a compression coil spring 86 encircling stem 68 and interposed between a flange 88 thereon and stop collar 84.
  • a latch or detent restraining downward movement of stem 68 is provided.
  • this detent is constructed pursuant to my U. S. Pat. No. 3,396,874,. is-
  • chordal portion 90 which is bent to extend straight for a sector angle of about 90 and into tangential contact with the side wall of valvestem 68.
  • chordal portion 90 underlies a shoulder 92 of the valve stem to restrain downward movement thereof.
  • the underface .of shoulder 92 extends radially of valve stem 68 and its radial width is preferably slightly less than the radius of the circular wire stock of spring 86.
  • the outer edge of shoulder 92 may be chamfered to facilitate camming chordal portion 90 radially outward as valve stem 68 is urged downwardly.
  • valve assembly 64 and particularly thedetent structure of spring 86 and shoulder 92 of valve stem 68 are more fully shown and described in my aforesaid U. S. Pat. No. 3,396,874 which is incorporated herein by reference, and hence this snap-action valve assembly will not be described in further detail.
  • Actuator button 58 protrudes upwardly from housing chamber 38, past rib 48, and has a dimple 94 in its top surface to' receive the end of finger 56.
  • Button 58 has a skirt 58 which is slidably received within the upwardly extending portion of flange 72 of ring 70.
  • Button 58 is fixed to valve stem 68 by the upper end of stem 68 being press fit into a counterbore 96 in button 58.
  • Spray nozzle 50 is press fit in a circular groove 98 in a side wall of button 58 and has arestricted orifice 100 which nebulizes a liquid supplied to the nozzle under pressure. Orifice 100 communicates with passage 74 in valve stem 68 through passages 102, 104 and 106 in button 58 as shown in FIG. 1.
  • Pump chamber 54 is formed in an integral nose projection 1 of housing 22 by a cylindrical bore 1 12 with a frustoconical portion 1 14 at its lower end.
  • a dip tube 116 is frictionally received in the lower end of nose portion 110 and communicates at its upper end with pump chamber 54 through a passage 118.
  • the pump has an end-of-stroke pressure cut-off inlet check valve provided in the lower end of pump chamber 54 to control fluid flow through passageway 118.
  • a check ball 122 is retained by gravity on a right circular valve seat 124 and is dimensioned to have a predetermined lateral clearance with wall 114 at the lower end of pump chamber 54.
  • a tapered, flexible kicker finger 130 is integrally joined to piston 52 and extends down-' wardly therefrom through the hollow interior of cup seal 53 and protrudes therefrom by a distance sufficient to engage and-remove ball 122 from its seat 124 as piston 52 reaches the end of its dispensing stroke and thus is fully depressed as shown in FIG. 3.
  • Pump chamber 54 communicates with the lower end of valve assembly 64 by a passage 132 extending generally axially through the lower portion of piston 52.
  • Finger 130 is offset clear of passage 132 and is oriented so that the rounded nose at its lower end strikes ball 122 off center as shown in FIG. 2 to develop increasing side thrust on ball 122 as piston 52 travels downwardly from its position shown' in FIG. 2 to its position shown in FIG. 3.
  • sprayer device is actuated by applying a generally axially downwardly directed force on actuator button 58, as by holding container 54 in the palm of the hand and using the index finger 56 of the same hand as shown in FIG. 2.
  • Initial application of this force tends to urge piston 52, via stem 68, chordal portion 90 and collar 84, axially downwardly to pressurize the liquid in pump chamber 54.
  • the liquid trapped in chamber 54 will resist and prevent downward movement of piston52.
  • valve stem 68 is suddenly released for axial downward displacement relative to piston 52.
  • the amount of force required to disengage chordal portion 90 is primarily dependent upon the stiffness of the'bottommost coil of spring 86 and the design of the camming surface of shoulder 90. In a typical sprayer device 20, these parameters are designed to require an application of a force of .about four pounds to release, valve stem 68.
  • spring 60 urges piston 52 upwardly with a force of less than 10 ounces, and hence liquid in pump chamber 54 is substantially pressurized before valve stem 68 is released.
  • valve stem 68 When valve stem 68 is released, it snaps or rapidly moves downwardly in relation to piston 52 to open ports 78 (as shown in FIG. 2) and thereby allows pressurized liquid in pump chamber 54 to flow to spraynozzle orifice via piston passage 132, ports 78, passage 74, nozzle passage 102, port 104 and passage 106. Since the liquid in pump chamber 54 has already been pressurized when valve assembly snaps rapidly open above some given minimum value, the liquid initially supplied to nozzle 50 is also pressurized above some corresponding minimum value which is high enough to preclude dribbling at the beginning of the discharge of nebulized liquid from spray nozzle 50.
  • stem 68 quickly completes its remaining travel relative to piston 52 and shoulder 92 bottoms on collar 84, whereupon the downward force exerted on stem 68 is directly applied to piston 52 to force it downwardly and initiate its downward movement on its dispensing stroke.
  • piston 52 moves axially downwardly through its dispensing stroke until, as it approaches the end of its compression stroke as shown in FIG. 2, kicker finger engages check ball 122. Finger 130 is deflected by ball 122 until suffi'cient side force is built up to lift ball 122 slightly off its seat.
  • FIG. 5 illustrates a modified spray device 133 which has a housing 134 with a skirt 136 with internal threads 138 adapted for mating engagement with external threads 140 on a neck of a container 142 for a liquid. Except for skirt 136, housing 1341and the remaining parts of sprayer 13 3 are the same as spray device 20 and the operation of sprayer 133 is identical to sprayer 20.
  • FIGS. 6, 7 and 8 illustrate a third sprayer embodiment 143 with a modified inlet check valve assembly 144 and a modified piston 146.
  • Piston 146 has the same general shape and configuration as piston 52. However, to facilitate the manufacture of piston 146, it is formed in two pieces with a lower head portion 148 and an upper body portion 150 which are telescoped and press fit together to provide a tw o-piece piston 146.
  • Valve assembly 144 has the same check ball 122 and seat 124 as the valve assembly in sprayer 20. However, it is to be noted that valve assembly 144 also has (as shown in FIG.
  • Nose 110' is also modified in that, instead of one frustoconical wall to the left as viewed in FIGS. 6 and 7 until its end slidably jams between wall 114" and the ball.
  • sprayer 143 is the same as sprayer 20.
  • FIGS. 9 and 10 illustrate a fourth sprayer embodiment 149 with a further modified check valve assembly 154 in conjunction with a two-piece piston 146'.
  • Valve assembly 154 has the same check ball 122 and valve seat 124 as the valve assembly in sprayer 20.
  • Valve assembly 154 also has a compression spring 156 with one end bearing on ball 122 and yieldably urging it into engagement -with seat 124 and the other end fixedly received in a pocket 158 in the head portion 148 of piston 146.
  • the finger 130" of piston 146 is slightly narrower than finger 1-30' of piston 146 to provide clearance for spring 156. Otherwise, head portion 148' is identical to head 148 of piston 146.
  • Nose 1l0" of sprayer 149 has two frustoconical surfaces 160 and 162 which surround ball 122 with a predetermined clearance and form-the lower end of pump chamber 54.
  • the pressure in container 24 becomes sufficiently subatmospheric for this venting to occur only after several pumping strokes of piston 52 and hence this venting action does not usually occur at the completion of each pumping stroke.
  • the seal'therebetween while preventing the escape of liquid from the container, allows sufficient air to enter the container so that this venting through nozzle 50 will not occur during normal operation of the spray device.
  • spray device20 If there is no liquid in pump chamber 54 when spray device20 is initially actuated, a stroke or two of actuator button 58 may be required to completely prime the spray device. However, once spray device 20 has been initially primed, check valve 122 will usually prevent the spray device from losing its prime.
  • valve assemblies also provide manually actuated pump spray devices in which the amount of liquid dispensed during each cycle is substantially the same, and hence the amount of liquid dispensed can be precisely metered.- These features make this sprayer device ideal for dispensing-medicants and various cosmetic and mouth freshener liquids.
  • the quantity of liquid dispensed by the spray device can be varied by changing the volumetric capacity per stroke of the pump; One way of changing this volumetric capacity is to change the stroke of piston 52, and other ways will be apparent to those skilled in the art.
  • Such a mechanically actuated pump sprayer also eliminates the need for aerosol propellants which may be hazardous to the health and safety of people using such medi cants, cosmetic and-mouth freshener liquids.
  • the piston member 52, 146 or 146 can be molded of a low density polyethylene plastic material to provide a suitable flexible cup seal 53 and flexible finger 130, 130 or 130" for moving check ball 122 off its seat 124 when the piston is depressed; whereas, nose 110, 110 or 110" can be molded from higher density, more rigid plastic materials such as DELRIN (Trademark).
  • DELRIN Trademark
  • the outer housing 22 or 134 also can be molded of a polypropylene or similar plastic material if desired to provide increased resiliency and flexibility in fingers 1 52, 152', 152" in nose 110 for yieldably urging check ball 122 into engagement with its valve seat 124
  • the interfitting component parts of the sprayer device are designed so that when made of the aforementioned plastic materials, they can be either press fit or snapped into assembled relation with each other, thereby greatly facilitating and thus decreasing the cost of assembly of the component parts into a completed spray device.
  • the end-of-stroke pressure cut-off valve of the invention may comprise a third valve supplemental to the usual intake check valve, in which case the pressure cutoff valve merely controls communication between pump chamber 54 and the head space of container 24.
  • the pressure cutoff valve merely controls communication between pump chamber 54 and the head space of container 24.
  • the end-of-stroke pressure cutoff valving may comprise a piston controlled groove arrangement somewhat similar to that disclosed in my U. S. Pat. No. 3,514,017 issued May 26, 1970.
  • a spray device with a manually actuated pump for nebulizing a liquid comprising a housing having a pump chamber therein, a first passageway communicating with said chamber and adapted to communicate with a container for liquid to be nebulized, a manually actuated piston slidably received in said chamber and adapted to pressurize a liquid in said chamber when manually moved in a dispensing stroke from a first position toward a second position in said chamber, a first valve received in said chamber for controlling the entry of all liquid from the container into said chamber and adapted to normally prevent the flow of a liquid from said chamber through said first passageway back to the container when the liquid in said chamber is pressurized by said piston, said first valve being yieldably urged to its closed position bypressurized liquid in said chamber, a second passageway communicating with said chamber and with a spray orifice, and means operably associated with said piston and said first valve to open said first valve to dump pressurized liquid from said chamber into said first passageway when said piston nears completion of its dis
  • said first valve comprisesv a valve member received in said chamber and said means operably associated with said first valve and said piston comprises a projection extending from said piston and adapted to engage and displace said valve-memberin said chamber toopen said first passageway when said piston approaches said second position.
  • the spray device of claim 2 further including a valve seat adapted to receive said valve member in sealing engagement therewith and means yieldably urging said valve member into. engagement with said valve seat.
  • valve member comprises a check ball and said means yieldably urging said check ballinto engagement with said valve seat comprises resilient finger means carried'by said housing and yieldably urging said check ball int sealing engagement with said valve seat.
  • said finger means comprise a plurality of fingers spaced from one another around saidvalve seat, each of said fingers extending to a free end-thereof positioned beyond the center of said'check ball in both the seated and'unseated conditions thereof, each of said fingers being inclined slightly toward said ball such that the freeends of said fingers are spaced apart by a distance less than the diameter of said ball.
  • said chamber has a wall surface spaced from said check ball and inclined in converging relation with said seat in the direction of travel of said piston on its dispensing stroke, said wall surface and said ball together defining a space for initially slidably receiving the free end of said piston tion is cammed by said wall toward said check ball to displace the same from said seat to thereby open said first passageway when said piston reaches said second position.
  • said piston and projection means are'integral with one another'and made of plastic material having greater. flexibility than said plastic material from which said finger means and said housing are made 1 v 11.
  • said piston has an outwardly flaring open-ended cup seal portion at its leading end, said second passageway including a passage extending axially through said piston and communicating at one end with the hollow interior of said cup seal portion, said piston projection being integrally joined at its fixed end to the base of said cup seal poition adjacent said piston passage and protruding through the hollow interior of said cup seal beyond the leading end thereof.
  • saidfirst valve comprises an inlet check valve for said chamber with a check ball movable between open and closed positions in response to reversals of pressure differentials between said chamber and first passageway corresponding to forces applied to said piston tending to move it in opposite directions on its respective intake and dispensing strokes.
  • said housing' has a valve seat adapted to sealingly receive said check ball and which also comprises including a compression coil spring extending between said piston and said check ball adapted to yieldably urge said check ball into sealing engagement with said valve seat.
  • the spray device of claim 1 wherein said piston has a passage extending generally longitudinally therethrough forming part of said second passageway and the spray device also comprises a second valve having a valve stem carried by said piston and movable relative to said piston between open and closed flow controlling positions relative to said second passageway, said valve stem having a passage therein forming part of said second passageway and having an inlet port connecting said stem passage with said piston passage in the open position of said valve stem, sealing means carried by said piston and adapted to seal said inlet port when said valve stem is in'said closed position, and biasing means interposed between said valve stem and said piston to yieldably urge said valve stem into said closed position,
  • said stem being oriented to move from said closed to said open position thereof in the direction of travel said piston on its dispensing stroke.
  • the spray device of claim 16 further including detent means engageable with said valve stem to yieldably resist movement of said valve stem from said closed toward said open position, said detent means yielding to release said valve stem for movement to said open position upon application of a predetermined force thereto tending to move said valve stem toward said open positionto thereby cause a snap acting opening motion of said valve stem to place said inlet port in communication with said second passage, said force being transmitted through said detent means to said piston to cause pressurization of liquid in said chamber before said detent means yields to release said valve stem.
  • said means yieldably urging said valve stem into said closed position comprises a coil spring encircling said valve stem, said coil spring having a convolution thereof formed with a ch'ordal portion adapted to slidably contact a side of said valve stem, said valve stem having a shoulder engageable with said chordal portion when said valve stem is in said closed position, said shoulder and said chordal portion havingsurfaces adapted to develop upon interengagement thereof a radially outwardly directed force on said chordal portion in response to a force exerted on said valve stem to thereby cam said chordal portion into disengagement with said shoulder to effect sudden releaseof said valve stem so that it is rapidly propelled to the open position thereof.
  • the spray device of claim 1 which also comprises a second valve associated with said second passageway and adapted to close all communication of said spray orifice with said chamber when said piston is in said first position and to automatically open communication of said spray orifice with said chamber when a predetermined minimum force is appliedto said piston to urge it toward said second position and pressurize liq uid in said chamber, whereby the liquid to be nebulized is discharged from said spray orifice substantially without any dribble of the discharged liquid at the beginning of said dispensing stroke.
  • a spray device with a manually actuated pump for nebulizing a liquid comprising a housing having a chamber therein, a first passageway in said housing in communication with ,said chamber and adapted to communicate with a container for liquid to be nebulized, a piston carried by said housing and having a head slidably received in said chamber and adapted for manual displacement from a first to a second position along a dispensing stroke in said chamber to pressurize and pump liquid therefrom, a second passageway communicating with a spray orifice and said chamber, said second passageway including a passage in said piston, an outlet valve carried by said piston for controlling the flow of liquid in said second passageway to said spray orifice and movable relative to said piston between open and closed flow controlling positions, release means associated with said outlet valve to automatically release said outlet valve to 'move from said closed position to said open position when a predetermined minimum force is manually applied to said piston to urge it toward said second position, an inlet check valve in said chamber movable to open and closed and
  • actuator means in said chamber operably associated with said piston and said inlet check valve to open said inlet check valve when said piston is displaced from said first position and is still moving toward said second position while a liquid in said chamber is being pressurized by said piston, whereby when a manual force is applied to said piston when in said first position liquid in said chamber is first pressurized and then said release means releases saidoutlet valve allowing opening of said outlet valve to supply a liquid under pressure from said chamber to said spray orifice'whereupon said piston is displaced along its dispensing stroke toward said second position and while being displaced along said dispensingstroke said actuator means opens said inlet check valve to allow pressurized liquid in said chamber to escape through said first passageway, thereby substantially eliminating all dribble at initiation and termination of the nebulized liquid discharge through said spray nozzle.
  • the spray device of claim 21 further including means yieldably urging said valve member into sealing engagement with saidtvalve seat.
  • check valve yieldable urging means comprises cage means carried by said housing yieldably urging said valve member into engagement with said valve seat.
  • valve means also comprises a spring extending between said piston and said valve member yieldably urging said valve member into engagement with said valve seat.
  • valve means comprises a plurality of projections homogeneously integral with said housing, said projections yieldably urging said valve member into e'ngagement with said valve seat.
  • a spray device with a manually actuated pump for nebulizing a liquid comprising a housing having a pump chamber therein, a first passageway communicating with said chamber and adapted to be connected to a source of liquid to be nebulized, a manually actuated piston slidably received in said chamber and adapted to pressurize a liquid in said chamber when manually moved in a dispensing stroke from a first position to a second position in said chamber, a second passageway communicating with said chamber and with a spray orifice, and a valve associated with said second passageway and adapted to close said second passageway to communication with said orifice when said piston is in said first position and to automatically open said second passageway when said piston has pressurized a liquid in said chamber, said piston having a passage extending generally longitudinally therethrough forming part of said second passageway, said valve having a valve stem carried by said piston and movable relative to said piston between open and closed flow controlling positions relative to said second passageway,
  • valve stem having a passage therein forming part of said second passageway and having an inlet port connecting said stem passage with said piston passage in the open position of said valve stem, sealing means carried by said piston and adapted to seal said inlet port when said valve stem is in said closed position, and biasing means interposed between said valve stem and said piston to yieldably urge said valve stem into said closed position, said stem being oriented to move from said closed to said open position thereof in the direction of travel of said piston on its dispensing stroke, whereby substantially all dribble at the beginning of the nebulized liquid discharge is eliminated.
  • detent means engageable with said valve stem to yieldably resist movement of said valve stem from said closed toward said open position, said detent means yielding to release said valve stem for movement to said open position upon application for a predetermined force thereto tending to move said valve stem toward said open position to thereby cause a snap acting opening motion of said valve stem to place said inlet port in communication with said second passage, said force being transmitted through said detent means to said piston to cause pressurization of liquid in said chamber before said detent means yields to release said valve stem.
  • said means yieldably urging said valve stem into said closed position comprises a coil spring encircling said valve stem, said coil spring having a convolution thereof formed with a chordal portion adapted to slidably contact a side of said valve stem, said valve stem having a shoulder engageable with said chordal portion when said valve stem is in said closed position, said shoulder and said chordal portion having surfaces adapted to develop upon interengagement thereof a radially outwardly directed force on said chordal portion in response to a force exerted on said valve stem to thereby that it is rapidly propelled to the open position thereof.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
US00236807A 1972-03-22 1972-03-22 Manually actuated liquid spraying device Expired - Lifetime US3779464A (en)

Applications Claiming Priority (1)

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US23680772A 1972-03-22 1972-03-22

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US (1) US3779464A (pt)
JP (1) JPS5245050B2 (pt)
AU (1) AU471458B2 (pt)
BE (1) BE797106A (pt)
BR (1) BR7302024D0 (pt)
CA (1) CA1000244A (pt)
DE (1) DE2313755C3 (pt)
FR (1) FR2177375A5 (pt)
GB (1) GB1424618A (pt)
HK (1) HK16177A (pt)
IT (1) IT979872B (pt)
NL (1) NL7303943A (pt)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908870A (en) * 1973-11-15 1975-09-30 Yoshino Kogyosho Co Ltd Manual-type miniature atomizer
DE2504885A1 (de) * 1974-02-08 1976-01-08 Step Soc Tech Pulverisation Fluessigkeitszerstaeuber, insbesondere parfuemzerstaeuber
US3937366A (en) * 1974-04-05 1976-02-10 Vca Corporation Hand-held pump type dispenser
US3940070A (en) * 1973-08-16 1976-02-24 Societe Technique De Pulverisation Atomiser having a plunger tube
US4017031A (en) * 1974-09-26 1977-04-12 Yoshino Kogyosho Co., Ltd. Miniature atomizer of manual type
US4083476A (en) * 1973-11-30 1978-04-11 Boehringer Ingelheim Gmbh Snap device for manually actuated liquid-atomizing pumps
US4183449A (en) * 1978-01-09 1980-01-15 The Afa Corporation Manually operated miniature atomizer
DE3011937A1 (de) * 1979-03-27 1980-10-02 Yoshino Kogyosho Co Ltd Fluessigkeitsspruehvorrichtung
US5301852A (en) * 1991-10-11 1994-04-12 Exo S.R.L. Manually operated pump for dispensing liquid or creamy substances at a predetermined constant pressure
US5785208A (en) * 1996-04-10 1998-07-28 Calmar Inc. Precompression pump sprayer having suck-back feature
US6223951B1 (en) * 1999-08-17 2001-05-01 Calmar Inc. Anti-clog pump sprayer
US20020148860A1 (en) * 2001-04-16 2002-10-17 Ben Z. Cohen Microdispensing pump
US20050067435A1 (en) * 2003-09-25 2005-03-31 Unilever Home & Personal Care Usa, Division Of Conopco, Inc. Foam dispensing article
US6971557B2 (en) * 2003-06-19 2005-12-06 S. C. Johnson & Son, Inc. Actuator for a pressurized material dispenser
US20100224653A1 (en) * 2009-02-06 2010-09-09 Xavier Donnette Device for delivering a substance, the device including a pump comprising a stationary portion and a movable portion
WO2011139383A1 (en) * 2010-05-05 2011-11-10 Dispensing Technologies B.V. Sprayer device with aerosol functionality ("flairosol")
US20130112766A1 (en) * 2010-05-05 2013-05-09 Dispensing Technologies B.V. Metered and active sprayer devices with aerosol functionality ("flairosol ii")
US9254954B2 (en) 2010-08-18 2016-02-09 Summit Packaging Systems, Inc. Metering valve
US10627001B2 (en) 2018-06-29 2020-04-21 Sulzer Mixpac Ag Check valve system
US11529640B2 (en) * 2019-03-05 2022-12-20 Rpc Bramlage Gmbh Dispenser for discharging flowable compounds

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JPS5643415Y2 (pt) * 1975-08-15 1981-10-12
JPS5226214U (pt) * 1975-08-15 1977-02-24
US4051983B1 (en) * 1975-11-19 1993-12-14 Calmar Inc. Pump sprayer having pump priming means
JPS53101153A (en) * 1977-02-15 1978-09-04 Aron Kasei Kk Refrigerative accumulating medium composition
FR2396182A1 (fr) * 1977-07-01 1979-01-26 Normos Norbert Pompe manuelle a surcompression par accumulation
FR2429338A1 (fr) * 1978-06-19 1980-01-18 Aerosol Inventions Developmant Pompe a amorcage rapide pour vaporisateur
JPS5650986A (en) * 1979-10-03 1981-05-08 Iwatsukusu Kk Oxidative heat-generating agent
DE3314020A1 (de) * 1983-04-18 1984-10-18 Hörauf & Kohler KG, 8900 Augsburg Handbetaetigter fluessigkeitszerstaeuber
DK0630691T3 (da) * 1993-06-23 2000-05-15 American Cyanamid Co Dispenserpistol for viskøse eller halvviskøse produkter
GB9405891D0 (en) * 1994-03-24 1994-05-11 English Glass Company The Limi Dispenser pumps
FR3109805B1 (fr) * 2020-05-04 2022-11-04 Taieb Gilles Système de pompe pour vaporisateur

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Publication number Priority date Publication date Assignee Title
US2912173A (en) * 1957-03-04 1959-11-10 Illinois Tool Works Aerosol valve, valve actuator therefor and aerosol dispensing nozzle
US3008651A (en) * 1959-01-17 1961-11-14 Step Soc Tech Pulverisation Sprayer or atomizer
US3185356A (en) * 1962-03-27 1965-05-25 Risdon Mfg Co Metering valve
US3396874A (en) * 1967-05-15 1968-08-13 Afa Corp Positive action dispensing valve
US3514017A (en) * 1969-03-03 1970-05-26 Afa Corp Pressure regulating structure for piston pump
US3583605A (en) * 1969-01-17 1971-06-08 Diamond Int Corp Liquid dispensing pump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2912173A (en) * 1957-03-04 1959-11-10 Illinois Tool Works Aerosol valve, valve actuator therefor and aerosol dispensing nozzle
US3008651A (en) * 1959-01-17 1961-11-14 Step Soc Tech Pulverisation Sprayer or atomizer
US3185356A (en) * 1962-03-27 1965-05-25 Risdon Mfg Co Metering valve
US3396874A (en) * 1967-05-15 1968-08-13 Afa Corp Positive action dispensing valve
US3583605A (en) * 1969-01-17 1971-06-08 Diamond Int Corp Liquid dispensing pump
US3514017A (en) * 1969-03-03 1970-05-26 Afa Corp Pressure regulating structure for piston pump

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940070A (en) * 1973-08-16 1976-02-24 Societe Technique De Pulverisation Atomiser having a plunger tube
US3908870A (en) * 1973-11-15 1975-09-30 Yoshino Kogyosho Co Ltd Manual-type miniature atomizer
US4083476A (en) * 1973-11-30 1978-04-11 Boehringer Ingelheim Gmbh Snap device for manually actuated liquid-atomizing pumps
DE2504885A1 (de) * 1974-02-08 1976-01-08 Step Soc Tech Pulverisation Fluessigkeitszerstaeuber, insbesondere parfuemzerstaeuber
US3937366A (en) * 1974-04-05 1976-02-10 Vca Corporation Hand-held pump type dispenser
US4017031A (en) * 1974-09-26 1977-04-12 Yoshino Kogyosho Co., Ltd. Miniature atomizer of manual type
US4183449A (en) * 1978-01-09 1980-01-15 The Afa Corporation Manually operated miniature atomizer
DE3011937A1 (de) * 1979-03-27 1980-10-02 Yoshino Kogyosho Co Ltd Fluessigkeitsspruehvorrichtung
US5301852A (en) * 1991-10-11 1994-04-12 Exo S.R.L. Manually operated pump for dispensing liquid or creamy substances at a predetermined constant pressure
US5785208A (en) * 1996-04-10 1998-07-28 Calmar Inc. Precompression pump sprayer having suck-back feature
US6223951B1 (en) * 1999-08-17 2001-05-01 Calmar Inc. Anti-clog pump sprayer
US8267285B2 (en) 2001-04-16 2012-09-18 Ben Z. Cohen Microdispensing pump
US7651011B2 (en) * 2001-04-16 2010-01-26 Ben Z. Cohen Microdispensing pump
US20110006087A1 (en) * 2001-04-16 2011-01-13 Ben Z. Cohen Microdispensing pump
US8752735B2 (en) 2001-04-16 2014-06-17 Ben Z. Cohen Microdispensing pump
US20020148860A1 (en) * 2001-04-16 2002-10-17 Ben Z. Cohen Microdispensing pump
US6971557B2 (en) * 2003-06-19 2005-12-06 S. C. Johnson & Son, Inc. Actuator for a pressurized material dispenser
US7048153B2 (en) * 2003-09-25 2006-05-23 Unilever Home & Personal Care Usa, Division Of Conopco, Inc. Foam dispensing article
US20050067435A1 (en) * 2003-09-25 2005-03-31 Unilever Home & Personal Care Usa, Division Of Conopco, Inc. Foam dispensing article
US8365961B2 (en) * 2009-02-06 2013-02-05 Rexam Healthcare La Verpilliere Device for delivering a substance, the device including a pump comprising a stationary portion and a movable portion
US20100224653A1 (en) * 2009-02-06 2010-09-09 Xavier Donnette Device for delivering a substance, the device including a pump comprising a stationary portion and a movable portion
US20150008267A1 (en) * 2010-05-05 2015-01-08 Dispensing Technologies B.V. Sprayer device with aerosol functionality ("flairosol")
US9714133B2 (en) * 2010-05-05 2017-07-25 Dispensing Technologies B.V. Metered and active sprayer devices with aerosol functionality (“Flairosol II”)
US20130112766A1 (en) * 2010-05-05 2013-05-09 Dispensing Technologies B.V. Metered and active sprayer devices with aerosol functionality ("flairosol ii")
US20120048959A1 (en) * 2010-05-05 2012-03-01 Dispensing Technologies B.V. Sprayer device with aerosol functionality ("Flairosol")
US8905271B2 (en) * 2010-05-05 2014-12-09 Dispensing Technologies B.V. Sprayer device with aerosol functionality (“Flairosol”)
WO2011139383A1 (en) * 2010-05-05 2011-11-10 Dispensing Technologies B.V. Sprayer device with aerosol functionality ("flairosol")
US11660624B2 (en) 2010-05-05 2023-05-30 Dispensing Technologies B.V. Sprayer device with aerosol functionality—flairosol
CN103068493B (zh) * 2010-05-05 2016-02-10 分配技术有限公司 具有气雾化功能的喷射器装置（“Flair气雾器”)
RU2577264C2 (ru) * 2010-05-05 2016-03-10 Диспенсинг Текнолоджиз Б.В. Устройство распыления с функциями аэрозольного устройства ("flairosol")
CN103068493A (zh) * 2010-05-05 2013-04-24 分配技术有限公司 具有气雾化功能的喷射器装置（“Flair气雾器”)
US20170333930A1 (en) * 2010-05-05 2017-11-23 Dispensing Technologies B.V. Sprayer device with aerosol functionality ("flairosol")
US10456798B2 (en) * 2010-05-05 2019-10-29 Dispensing Technologies B.V Sprayer device with aerosol functionality (“Flairosol”)
US11027296B2 (en) * 2010-05-05 2021-06-08 Dispensing Technologies B.V. Sprayer device with aerosol functionality—Flairosol
US9254954B2 (en) 2010-08-18 2016-02-09 Summit Packaging Systems, Inc. Metering valve
US10537906B2 (en) 2011-09-20 2020-01-21 Dispensing Technologies B.V. Metered and active sprayer devices with aerosol functionality (“Flairosol II”)
US11154886B2 (en) 2011-09-20 2021-10-26 Dispensing Technologies B.V. Metered and active sprayer devices with aerosol functionality (“Flairosol II”)
US12036571B2 (en) 2011-09-20 2024-07-16 Dispensing Technologies B.V. Metered and active sprayer devices with aerosol functionality—Flairosol II
US10627001B2 (en) 2018-06-29 2020-04-21 Sulzer Mixpac Ag Check valve system
US11920690B2 (en) 2018-06-29 2024-03-05 Medmix Switzerland Ag Check valve system
US11529640B2 (en) * 2019-03-05 2022-12-20 Rpc Bramlage Gmbh Dispenser for discharging flowable compounds

Also Published As

Publication number Publication date
BR7302024D0 (pt) 1974-07-25
JPS4913715A (pt) 1974-02-06
HK16177A (en) 1977-04-15
CA1000244A (en) 1976-11-23
JPS5245050B2 (pt) 1977-11-12
NL7303943A (pt) 1973-09-25
DE2313755B2 (de) 1979-12-20
BE797106A (fr) 1973-09-21
AU471458B2 (en) 1976-04-29
IT979872B (it) 1974-09-30
GB1424618A (en) 1976-02-11
FR2177375A5 (pt) 1973-11-02
AU5343073A (en) 1974-09-19
DE2313755C3 (de) 1980-09-04
DE2313755A1 (de) 1973-09-27

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