GB1604464A - Gun for extruding sealant - Google Patents

Gun for extruding sealant Download PDF

Info

Publication number
GB1604464A
GB1604464A GB21924/78A GB2192478A GB1604464A GB 1604464 A GB1604464 A GB 1604464A GB 21924/78 A GB21924/78 A GB 21924/78A GB 2192478 A GB2192478 A GB 2192478A GB 1604464 A GB1604464 A GB 1604464A
Authority
GB
United Kingdom
Prior art keywords
cap
nozzle
shield cap
gun
retainer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB21924/78A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DuPont Toray Specialty Materials KK
Original Assignee
Toray Silicone Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP5881077A external-priority patent/JPS53143631A/en
Priority to CA303,036A priority Critical patent/CA1080172A/en
Priority to AU36286/78A priority patent/AU517062B2/en
Priority claimed from AU36286/78A external-priority patent/AU517062B2/en
Application filed by Toray Silicone Co Ltd filed Critical Toray Silicone Co Ltd
Priority to GB21924/78A priority patent/GB1604464A/en
Priority to FR7816223A priority patent/FR2427143A1/en
Priority to BE188324A priority patent/BE867822A/en
Priority to DE19782824847 priority patent/DE2824847A1/en
Publication of GB1604464A publication Critical patent/GB1604464A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503—Details of the outlet element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00583—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes the container for the material to be dispensed being deformable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/01—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)

Description

(54) GUN FOR EXTRUDING SEALANT (71) We, TORAY SILICONE COMPANY LTD., of 2-8 Muromachi, Nihonbashi, Chuo-ku, Tokyo, Japan, a corporation organized under the laws of Japan, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:- This invention relates to an extrusion gun for sealing compounds.
One-component or two-component sealing compounds are used for filling and sealing various joints in buildings, automobiles, ships, airplanes, machinery and instruments and a myriad of other uses. For the convenience of the users, one-component sealing compounds are usually marketed by packaging them in tubes such as lightweight aluminium or water-impermeable cardboard composite tubes or containers. The tubes and containers are usually of the shape to fit conventional extrusion guns wherein, after the sealing compound has been used, the tube or container is discarded and the extrusion gun is refitted with a new cartridge or tube. An improvement in the extrusion of sealants came about when manufacturers started producing sealing compounds in socalled "sausages". These sausages are lightweight film sacks or pouches which are filled with the sealant. They are introduced into the tubes or cylinders of sealant extrusion guns and the forward end of the sack is punctured whereupon the sealant can be extruded through the gun nozzle.
Heretofore, the nozzle of such guns has been an integral part of the gun and, whenever one desired to change to another colour of sealant, it was necessary to remove the sealant sack, to solvent wash the nozzle, and to reassemble the gun.
It therefore becomes a major advantage if the nozzle used for extruding the sealant can be removed and solvent washed later or can simply be discarded since sealing compounds are required to have various colours such as yellow, gray, black, etc. which will match the colours of the portions where they are to be applied.
In addition, when an application requires a different sized nozzle, for example, filling a very wide joint, the nozzle needs to be readily removed and replaced and on most current sealant extrusion apparati, this is not possible.
Thus, this inventive device was developed to overcome the faults of the previous devices.
This invention deals with an improved sealing compound extrusion gun for use with a sealing compound package.
This inventive device, specifically for onecomponent sealing compounds, prevents the soiling of the inside of the main body of the extrusion gun by fitting an exchangeable flexible shield cap with a nozzle into the inside surface of the cylindrical barrel, and then surmounting the shield cap with a retainer cap that can be readily removed.
The retainer cap has a centered aperture through which the nozzle of the flexible shield cap projects.
This device which eliminates the problems mentioned above deals with the structure of the gun itself and the package of the sealing compound. By fitting a flexible, exchangeable shield cap which has a flexible nozzle already built into it, into the inside surface of the barrel and retainer cap, soiling due to the sealing compounds, especially when different colours are used consecutively, is eliminated. Since the retainer cap is easily removed from the barrel and, since the flexible shield cap is easily removed and replaced by a clean flexible shield cap, the operator can use many different coloured sealants without moving from his work area. This is especially advantageous if the workman is working on scaffolding in an elevated work area. In addition, since the nozzle is build into the exchangeable, flexible shield cap, the workman can change the shield cap in order to change the size of the nozzle he is working with. for example, use a shield cap which has a wider nozzle for filling wider joints. The workman can then remove the wide nozzle and replace it with a standard size.
Although the shield cap is re-usable after being washed, it is desirable also that these caps be disposable and with the proper selection of material out of which the cap is made, they can be of the disposable variety.
Thus, the shield cap can be made of cardboard which is inexpensive and easy to dispose. The shield cap can also be made from any available flexible material provided it does not react with, or stain, the sealing compound. It is therefore contemplated within the scope of this invention to include such things as paper, plastics, rubber and composite materials in the manufacture of the shield cap.
There are no special restrictions on the shape or length of the nozzle of the shield cap provided its inside diameter decreases toward the forward end so that the nozzle can be used on any joint width. Useful shapes are conical, trigonal pyramidal, tetragonal pyramidal and the like.
The one-component sealing compounds useful in this invention may be of two types, namely, those which cure as a result of chemical reaction and those which harden as a result of the physical process of volatilization of the solvent contained therein. Examples of the first type are silicone sealants and polyurethanes. Examples of the latter type are butyl rubber sealants and acrylate sealants.
All of these materials are flowable and are contained in tubes or cartridges. For use with the extrusion gun of this invention, however, the sealants are contained in flexible, thin film sacks or pouches which are placed in the cylindrical barrels of the extrusion guns.
When the shield cap and retainer cap are in place, the nozzle of the shield cap projects out of a center opening of the retainer cap. In use, the nozzle is clipped or cut at the appropriate place to give the appropriatesized extrusion orifice. A probe or rod is then pushed down the nozzle to puncture the thin film sack of sealing compound and, when the extrusion means of the extrusion gun is activated, the sealant is extruded from the nozzle.
The invention, therefore, consists in an improved sealant extrusion gun which comprises a cylindrical barrel fitted on one end with a conventional extrusion means comprising a plunger, spring, rod and trigger.
The improvement comprises fitting the opposite end of the cylindrical barrel with a flexible shield cap with an openable nozzle and a retainer cap having a centered opening such that the flexible shield cap with nozzle is fitted to, and maintained partly inside, the cylindrical barrel to shield an end part of the inside wall thereof, and is surmounted by the retainer cap. The retainer cap is secured to the cylindrical barrel so as to hold both the flexible shield cap with nozzle and the retainer cap in place, whereby the nozzle of the flexible shield cap projects through the centered opening of the retainer cap in a direction opposite to that of the extrusion means and allows extrusion of the sealing compound when the nozzle of the flexible shield cap is opened and the extrusion means is activated.
Reference will now be made to the drawings so that a detailed explanation of the invention can be used to show those skilled in the art the benefits of the instant invention.
Figure 1 is a side view of a one-component type sealing compound packaged in the shape of a sausage.
Figure 2 is a view of the longitudinal crosssection of an extruding gun after the onecomponent type sealing compound packaged in a sausage shape is loaded into the gun.
Figure 3 shows a partial longitudinal cross-section of an example of the shield cap based on this device together with the improved retainer cap.
Figure 4 is a partial longitudinal crosssection of the shield cap and the retainer cap when they are assembled into a body.
The actual configuration of the sack or pouch of Figure 1 is immaterial provided it fits the cylindrical barrel of the extrusion gun. The preferred configuration is as shown in the figure, that is, the "sausage" shape with an outer film 1 and a packed sealing compound 2.
Figure 2 is a gun presently in use for extruding sausage-shaped material. It comprises a retainer cap 3, a cylinder 4, a plunger 5, a spring 6, a rod 7, which is connected to the plunger 5, and a trigger 8. In this mechanism, the pulling of the trigger 8 advances the plunger 5. The retainer cap 3 can be threadedly attached to the barrel 4 and thereby can be easily attached to, and detached from the cylinder 4 by one turn with the use of a gripping tool. The procedure in the use of this gun consists in removing the retainer cap 3, pulling out of the rod 7, loading a sealing compound package of the shape illustrated in Figure 1 into the cylinder, replacing the retainer cap 3, broaching a hole in the sealing skin with a probe inserted through the nozzle hole and repeatedly pulling on the trigger 8, which advances the plunger 5 and thus causes the extrusion of the sealing compound.
However, when sealing compounds of different colour hues are successively used with this gun, soiling of the sealing compounds results, and the appearance of the finished work is impaired. For this reason, at present, the gun is always washed before a sealing compound of a different colour is to be used. In addition, depending on the joint width of the work, often, the gun cannot be used because the joint width and the inside diameter of the retainer cap 3 do not agree with each otheL Figure 3 shows the inventive portion of the device. The figure, a partial diagram illustrating the idea of this device, shows a section which consists of a retainer cap 3, having a centered opening 10, which is obtained by cutting off part of the nozzle section of the retainer cap, and a flexible shield cap 9.
The shape of the nozzle of the shield cap 9 is not specifically restricted provided its inside diameter is tapered towards the forward end so that it can be used on any joint width. In this figure, for example, a nozzle with a conical shape is shown.
Figure 4 shows a retainer cap 3 and shield cap 9 in one unit body. The shape of the shield cap 9 is similar to that of the inside surface of the retainer cap 3 except at the nozzle part. The insertion of the shield cap 9 against the inside surface of the retainer cap 3 and its manner of fitting into the main body of the gun prevent the inside surface of the retainer cap from being soiled. This is because an end part of the inside wall of the barrel is shielded by that part of the shield cap which is maintained inside the barrel. In addition, by cutting off the nozzle part of the shield cap to a suitable length, fitting and adjusting to various joint widths is made possible. As stated before, an acceptable material for the shield cap may be selected from cardboard, plastics, rubber, composite materials, etc. In the use of the gun, by exchanging the shield cap, application to any joint width is made possible. In addition, with this device, sealing compounds of different colour hues or different character can .be used successively without the need to wash the gun. Thus, the loss in time and economic losses with regard to solvent, etc., which are caused by washing, can be remarkably lessened.
While the above description illustrates a preferred embodiment of the invention it is to be understood that within the scope of the appended claims the invention can be practised otherwise than as specifically described.
WHAT WE CLAIM IS: 1. A sealant extrusion gun having a cylindrical barrel fitted on one end with a conventional extrusion means comprising a trigger activated plunger, a flexible shield cap provided with an openable nozzle and a retainer cap being fitted to the opposite end of the cylindrical barrel, the retainer cap being removably attached to said barrel and provided with a centered opening, being arranged so that the flexible shield cap with nozzle is maintained partly inside the cylindrical barrel to shield an end part of the inside wall thereof and surmounted by the retainer cap, and being secured to the cylindrical barrel in such manner that both the flexible shield cap with its nozzle and the retainer cap itself are held in place and that the nozzle of the flexible shield cap projects through the centered opening of the retainer cap in a direction opposite to the extrusion means and allows extrusion of the sealing compound when the nozzle is opened and the extrusion means is activated.
2. A sealant extrusion gun according to claim 1 wherein the flexible shield cap with nozzle is manufactured from a material selected from cardboard, plastics, rubber and composite materials.
3. A sealant extrusion gun according to claim 1 substantially as herein described with reference to Figs. 1 to 4 of the accompanying drawings.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (3)

**WARNING** start of CLMS field may overlap end of DESC **. device. The figure, a partial diagram illustrating the idea of this device, shows a section which consists of a retainer cap 3, having a centered opening 10, which is obtained by cutting off part of the nozzle section of the retainer cap, and a flexible shield cap 9. The shape of the nozzle of the shield cap 9 is not specifically restricted provided its inside diameter is tapered towards the forward end so that it can be used on any joint width. In this figure, for example, a nozzle with a conical shape is shown. Figure 4 shows a retainer cap 3 and shield cap 9 in one unit body. The shape of the shield cap 9 is similar to that of the inside surface of the retainer cap 3 except at the nozzle part. The insertion of the shield cap 9 against the inside surface of the retainer cap 3 and its manner of fitting into the main body of the gun prevent the inside surface of the retainer cap from being soiled. This is because an end part of the inside wall of the barrel is shielded by that part of the shield cap which is maintained inside the barrel. In addition, by cutting off the nozzle part of the shield cap to a suitable length, fitting and adjusting to various joint widths is made possible. As stated before, an acceptable material for the shield cap may be selected from cardboard, plastics, rubber, composite materials, etc. In the use of the gun, by exchanging the shield cap, application to any joint width is made possible. In addition, with this device, sealing compounds of different colour hues or different character can .be used successively without the need to wash the gun. Thus, the loss in time and economic losses with regard to solvent, etc., which are caused by washing, can be remarkably lessened. While the above description illustrates a preferred embodiment of the invention it is to be understood that within the scope of the appended claims the invention can be practised otherwise than as specifically described. WHAT WE CLAIM IS:
1. A sealant extrusion gun having a cylindrical barrel fitted on one end with a conventional extrusion means comprising a trigger activated plunger, a flexible shield cap provided with an openable nozzle and a retainer cap being fitted to the opposite end of the cylindrical barrel, the retainer cap being removably attached to said barrel and provided with a centered opening, being arranged so that the flexible shield cap with nozzle is maintained partly inside the cylindrical barrel to shield an end part of the inside wall thereof and surmounted by the retainer cap, and being secured to the cylindrical barrel in such manner that both the flexible shield cap with its nozzle and the retainer cap itself are held in place and that the nozzle of the flexible shield cap projects through the centered opening of the retainer cap in a direction opposite to the extrusion means and allows extrusion of the sealing compound when the nozzle is opened and the extrusion means is activated.
2. A sealant extrusion gun according to claim 1 wherein the flexible shield cap with nozzle is manufactured from a material selected from cardboard, plastics, rubber and composite materials.
3. A sealant extrusion gun according to claim 1 substantially as herein described with reference to Figs. 1 to 4 of the accompanying drawings.
GB21924/78A 1977-05-11 1978-05-24 Gun for extruding sealant Expired GB1604464A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA303,036A CA1080172A (en) 1977-05-11 1978-05-10 Gun for extruding sealant
AU36286/78A AU517062B2 (en) 1977-05-11 1978-05-19 Gun for extruding sealant
GB21924/78A GB1604464A (en) 1977-05-23 1978-05-24 Gun for extruding sealant
FR7816223A FR2427143A1 (en) 1977-05-11 1978-05-31 Hand gun for extruding plastic joint filling material - makes washing of barrel and nozzle unnecessary on changeover
BE188324A BE867822A (en) 1977-05-11 1978-06-05 CANON FOR THE EXTRUSION OF A CAPPING PRODUCT
DE19782824847 DE2824847A1 (en) 1977-05-23 1978-06-06 DEVICE FOR DISPENSING SEALING COMPOUND

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP5881077A JPS53143631A (en) 1977-05-23 1977-05-23 Fire-resistant composition
AU36286/78A AU517062B2 (en) 1977-05-11 1978-05-19 Gun for extruding sealant
GB21924/78A GB1604464A (en) 1977-05-23 1978-05-24 Gun for extruding sealant
FR7816223A FR2427143A1 (en) 1977-05-11 1978-05-31 Hand gun for extruding plastic joint filling material - makes washing of barrel and nozzle unnecessary on changeover
DE19782824847 DE2824847A1 (en) 1977-05-23 1978-06-06 DEVICE FOR DISPENSING SEALING COMPOUND

Publications (1)

Publication Number Publication Date
GB1604464A true GB1604464A (en) 1981-12-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB21924/78A Expired GB1604464A (en) 1977-05-11 1978-05-24 Gun for extruding sealant

Country Status (2)

Country Link
DE (1) DE2824847A1 (en)
GB (1) GB1604464A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4042065A1 (en) * 1990-12-28 1992-07-02 Friedhelm Schneider Viscous material dispensing pistol - has concentric tools located on nozzle puncturing bag

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0151922A3 (en) * 1984-01-11 1986-03-05 Teroson GmbH Tubular bag package
DE3500625A1 (en) * 1984-01-11 1985-08-29 Knieriem, Günter, Dipl.-Ing. (FH), 6802 Ladenburg Tubular bag package
WO1986004041A1 (en) * 1985-01-10 1986-07-17 Knieriem Guenther Hose bag package
DE8706659U1 (en) * 1987-05-08 1987-08-20 Fa. Karl Wolpers, 3200 Hildesheim Containers for holding pasty masses, e.g. sealing compounds
DE3904639A1 (en) * 1988-05-06 1989-11-16 Ara Werk Kraemer Gmbh & Co CYLINDRICAL PACKAGE FOR PASTOESE MASSES, ESPECIALLY TUBE PACKING AND METHOD AND DEVICE FOR THEIR PRODUCTION
DE8811644U1 (en) * 1988-09-14 1989-03-23 Schneider, Friedhelm, 5226 Reichshof Device for emptying bag packs
DE3831225A1 (en) * 1988-09-14 1990-03-22 Friedhelm Schneider Device for emptying bag packages
DE3922958C2 (en) * 1988-12-13 1997-01-16 Knieriem Guenther Dipl Ing Fh Emptying member
DE8901554U1 (en) * 1989-02-10 1989-06-08 Ritter, Franz Peter, Ing.(grad.), 8933 Untermeitingen Foil cartridge ejection device
CN108787361A (en) * 2017-05-03 2018-11-13 广东省有机硅工程技术研究开发中心 A kind of composite double layer packing element

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR775837A (en) * 1934-07-13 1935-01-10 Improvements in the manufacture of containers
US2720345A (en) * 1952-11-12 1955-10-11 Slobin David Caulking gun
US2755003A (en) * 1954-11-26 1956-07-17 William A Sherbondy Dispensing device for plastic materials and the like
US3439839A (en) * 1965-09-16 1969-04-22 Prod Res & Chem Corp Sealant dispensing device
US3369714A (en) * 1966-06-09 1968-02-20 Kenmar Mfg Company Dispenser with cartridge aligning means
US3595448A (en) * 1967-08-18 1971-07-27 Ewell Lee Carlton Sealant dispensers
US3587982A (en) * 1969-01-15 1971-06-28 Ncr Co Adhesive and sealant dispenser with grinding means
US3658213A (en) * 1970-12-22 1972-04-25 Rutland Fire Clay Co Shut-off nozzle for caulking cartridge
DE7718750U1 (en) * 1977-06-14 1977-09-29 Alcan Aluminiumwerke Dispensing container for viscous masses

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4042065A1 (en) * 1990-12-28 1992-07-02 Friedhelm Schneider Viscous material dispensing pistol - has concentric tools located on nozzle puncturing bag

Also Published As

Publication number Publication date
DE2824847A1 (en) 1979-12-20

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PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee