GB2092236A - Caulking Gun for Bagged Sealant - Google Patents
Caulking Gun for Bagged Sealant Download PDFInfo
- Publication number
- GB2092236A GB2092236A GB8137911A GB8137911A GB2092236A GB 2092236 A GB2092236 A GB 2092236A GB 8137911 A GB8137911 A GB 8137911A GB 8137911 A GB8137911 A GB 8137911A GB 2092236 A GB2092236 A GB 2092236A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sealant
- cylinder
- bagged
- gun
- cylindrical bag
- 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.)
- Withdrawn
Links
- 239000000565 sealant Substances 0.000 title claims description 39
- 229920002457 flexible plastic Polymers 0.000 claims 1
- 238000001125 extrusion Methods 0.000 abstract description 15
- 239000000463 material Substances 0.000 abstract description 9
- 239000012528 membrane Substances 0.000 abstract 1
- 239000011345 viscous material Substances 0.000 abstract 1
- 239000000835 fiber Substances 0.000 description 7
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 239000012779 reinforcing material Substances 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000005060 rubber Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002985 plastic film Substances 0.000 description 3
- 229920006255 plastic film Polymers 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 229920003049 isoprene rubber Polymers 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000004587 polysulfide sealant Substances 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 239000004588 polyurethane sealant Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000004590 silicone sealant Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- B05C17/00583—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
- B05C17/015—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 pneumatically or hydraulically actuated piston or the like
Abstract
An extrusion gun dispenses viscous material (2) by the action of air pressure on a flexible membrane (11), attached sealably to the cylinder (4). The material to be extruded is stored and placed in the gun, in flexible cylindrical bags (1). <IMAGE>
Description
SPECIFICATION
Caulking Gun for Bagged Sealant
Background of the Invention
This invention is concerned with a caulking gun for bagged sealant. More specifically, it is related to a caulking gun which extrudes sealant from a plastic film tube by using compressed air.
A sealant in a sausage-shaped plastic film tube has the advantage of significantly reducing the amount of wasted sealant in comparison with the conventional cartridge type of caulking gun since the plastic tube when emptying is folded into a small volume. The bagged sealant can be extruded by the piston actuated or the hand-gun.
However, extrusion cannot be performed by using compressed air and a bagged sealant because even if a bagged sealant is packed in the cylinder of an air gun, a gap is formed between the inside surface of the cylinder and the outside periphery of the bagged sealant. Compressed air escapes from this gap along the sides of the cylinder and through the extrusion nozzle. It is, therefore, impossible to extrude the sealant by that method.
While the air gun using compressed air is more expensive than the hand-gun, it nonetheless offers greater precision in application and does not require an experienced hand to operate. It also offers extrusion of the sealant at a constant speed.
The industry is in a strong need of an air gun which can be applied to a bagged sealant with reduced waste.
As a means to satisfy this need, a piston typically is inserted in the cylinder and the back of the bagged sealant is pushed via the piston.
However, this piston has its drawbacks. If the gap with the inside wall of the cylinder is decreased in order to maintain airtightness, smoothness will be poor and the piston cannot be driven smoothly.
On the other hand, if the gap is increased in order to avoid this, the leakage of compressed air to the front end side of the cylinder will increase and the sealant will ooze out. The bag containing the sealant may also be snagged in the gap, and it will become impossible for the piston to move because it will be jammed;
The objective of the present invention is to eliminate these problems by providing a caulking gun for bagged sealants which sealant can be pushed out by using compressed air and which will eliminate snagging of the bag. Further, escape of the sealant is avoided, and the gun will always extrude the sealant at a constant speed under stable conditions.
Summary of the Invention
To achieve the objectives described previously, the caulking gun of the present invention for use with bagged sealant is characterized by the fact that a cylindrical bag of a nonporous, flexible material is installed in the gun cylinder and the gun is equipped with an extrusion nozzle installed at the front end and a connection with a compressed air supply source in the back is provided whereby the front end and the back end of the cylinder are divided airtightly by the cylindrical bag and wherein the rear end of the cylindrical bag is made so that free displacement is possible forwardly along the longitudinal direction of the cylinder.
Brief Description of the Drawings
Figure 1 shows a side view of a partial cross section of a bagged sealant which can be applied by the present invention. Figure 2 is a side view showing a caulking gun in a partial cross section in an example of the present invention. Figure 2(A) shows the state of the bagged sealant immediately after filling and before extrusion.
Figure 2(B) shows the state of the extrusion process. Figure 3 is a longitudinal cross-sectional diagram of a cylindrical bag.
Description of Preferred Embodiments
In the following, a specific explanation will be given for the present invention by using examples shown in figures.
Figure 1 shows a bagged sealant, which is used in the caulking gun of the present invention.
The bag 1 made of a plastic film is packed with a sealant 2. Both ends are sealed with metal clamps 3. The sealants which can be used herein are silicone sealants, polysulfide sealants, polyurethane sealants, acrylic sealants and oil caulking materials.
Figure 2 is a side view of a cross section of the caulking gun of the present invention. Figure 2(A) shows the state of the cylindrical bag before extrusion immediately after the bagged sealant has been placed in the cylinder. Figure 2(B) shows the state of the cylindrical bag during the extrusion process using compressed air.
In Figure 2,4 is the gun cylinder. At the front end of the cylinder 4, an extrusion nozzle 5 is installed with an installation ring 6 between them.
A handle 7 is installed at the back of the cylinder 4. An adapter 8 provided at the lower end of the handle 7 is made so that it can be connected with a compressed air supply source with a flexible tube. The adapter 8 and the back of the cylinder 4 communicate with each other by an air passage.
A valve is provided in the middle of the passage.
This valve is installed so that it can be opened or closed by operating a knob 9 installed at the front end of the handle 7. The valve is opened when the knob 9 is pushed inwardly. The compressed air source and the back of the cylinder 4 are connected, with the adapter 8 lying between -them. By releasing the knob 9, it floats out owing to the reverse elastic force of the sealant and the valve is closed. The connection between the compressed air supply and the back of the cylinder is thus closed. 10 is a knob for operating a relief valve. By pressing the knob 10, the inside of the cylinder 4 and the atmosphere are connected with each other.
11 is cylindrical bag made of a nonporous, flexible material. Its annular ear section 1 1a is inserted between the front end of the cylinder 4 and the installation ring 6. Both are threaded to achieve airtightness. Since the cylindrical bag 1 1 is nonporous and the annular ear section 1 1a is firmly fastened to achieve airtightness, the front end and the back end of the cylinder 4 are divided airtightly with the cylindrical bag 11 as the boundary. As shown in Figure 2(A), the bagged sealant is inserted from the front end of the cylinder 4. It is inserted in the cylinder 4 together with the cylindrical bag 11, the nozzle and installation ring are mounted tightly on the cylinder. By operating the knob 9, compressed air is introduced into the back side of the cylinder 4.As shown in Figure 2(B), the bottom of the cylindrical bag 11 is pushed by the pressure of the compressed air. The back end of the bagged sealant is pushed at the same time. The cylindrical bag 11 is compressed while its rear end is being pushed by the compressed air. Its rear end is moved gradually toward the front end.
While the rear end of the bag 1 is being folded, the sealant 2 is pushed out toward the extrusion nozzle 5. This operation can be carried out very smoothly at a constant speed because the cylindrical bag 11 is flexible. Furthermore, since airtightness is maintained, the compressed air does not leak toward the extrusion nozzle 5 and the extrusion of the sealant 2 is not disturbed.
Figure 3 shows details of the cylindrical bag 11 installed in the cylinder 4 of the caulking gun.
As shown in Figure 3, the annular ear section 7 lea of the cylindrical bag 11 is comprised of two annular sections 12 and 13 formed of metal or plastics. The annular ear section 1 la is made so that it maintains its specific annular shape without deformation. The cylindrical bag 11 is constantly subjected to repeated bending or tensile force. Therefore, a reinforcing material 14 with a bending resistance and a tensile resistance is buried in the matrix of the cylindrical bag. The surface of this reinforcing material 14 is coated with rubber, plastic or other sofi, nonporous material 15. The thickness of the cylindrical bag
11 is tapered so that it is thinner toward the rear end. By having the thickness varying in a taper shape, the bending deformation from its rear end is facilitated.
The reinforcing material 14 may be individual fiber cords installed in the longitudinal direction of the cylindrical bag 11, or fiber cords in the form of woven material or knitted material.
The rubber for the nonporous material 15 may be natural rubber; styrene-butadiene rubber, ethylene-propylene rubber, chloroprene rubber, nitrile rubber, isoprene rubber, EPDM rubber, silicone rubber, polyurethane rubber, or other synthetic rubbers; or blended rubbers of these various kinds of rubbers. The plastics may be polyethylene, polypropylene, polyamide, polyester, polyvinyl chloride, polyvinyl vinylidene, or laminated materials of these various kinds of plastics.
The fibers for use as fiber cords for the reinforcing material 14 are wood cotton, rayon, and other cellulosic fibers; nylon, polyester, polypropylene, and other synthetic fibers; carbon fibers; glass fibers; stainless steel fibers, silicon carbide fibers, and other inorganic fibers.
The tapering of the thickness of the cylindrical bag and the installation of the reinforcing material 14, as described above, are preferred embodiments of the present invention. However, it is not necessary to have nonporosity of the cylindrical bag or flexibility.
As described above, the caulking gun for bagged sealant of the present invention is characterized by the fact that a cylindrical bag of a nonporous, flexible material is installed in a cylinder provided with an extrusion nozzle installed at the front end and connected with a compressed air supply source in the back, whereby the front end and the back end of the cylinder are divided airtightly by the cylindrical bag and wherein the bottom of the cylindrical bag is made such that free displacement is possible forwardly along the longitudinal direction of the cylinder. The bagged sealant is extruded using compressed air. In contrast to the case in which a piston is used, the sealant bag is not snagged. The oozing of sealant due to the leakage of the compressed air toward the extrusion nozzle does not occur either. The sealant can be extruded at a constant speed under stable conditions.
Claims (2)
1. A caulking gun for extruding bagged sealant through a nozzle from a flexible plastic bag situated in the cylinder of the gun, the improvement comprising installing in the cylinder a cylindrical, flexible, nonporous bag, wherein the front end and the back end of the gun cylinder are maintained airtight by the cylindrical bag and wherein the rear end of the cylindrical bag is easily displaced in a forwardly longitudinal direction of the gun cylinder.
2. A caulking gun according to Claim 1 substantially as herein described with reference tO the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56013188A JPS57127467A (en) | 1981-01-31 | 1981-01-31 | Calking gun for bagged sealing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2092236A true GB2092236A (en) | 1982-08-11 |
Family
ID=11826192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8137911A Withdrawn GB2092236A (en) | 1981-01-31 | 1981-12-16 | Caulking Gun for Bagged Sealant |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS57127467A (en) |
| AU (1) | AU7997682A (en) |
| BE (1) | BE891951A (en) |
| BR (1) | BR8200498A (en) |
| DE (1) | DE3201630A1 (en) |
| ES (1) | ES8308230A1 (en) |
| FR (1) | FR2499133A1 (en) |
| GB (1) | GB2092236A (en) |
| IT (1) | IT1150127B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0369723A2 (en) * | 1988-11-18 | 1990-05-23 | Tatsuo Shinriki | An extruding method of an extrudable substance, a container and a device, used for the method |
| US5137184A (en) * | 1990-08-17 | 1992-08-11 | Tremco Incorporated | Caulking gun and cartridge |
| EP0575975A1 (en) * | 1992-06-24 | 1993-12-29 | Minnesota Mining And Manufacturing Company | Hand-held dispenser with pivotal cover for collapsible tubes |
| US5332122A (en) * | 1991-11-12 | 1994-07-26 | Thera Patent Gmbh & Co. Kg Gesellschaft Fur Industrielle Schutzrechte | Container for flowable substances |
| GB2437596A (en) * | 2006-04-25 | 2007-10-31 | Exchem Plc | Dispenser cartridge |
| EP2082812A1 (en) * | 2008-01-23 | 2009-07-29 | Heraeus Kulzer GmbH | Device for storing fluid components for the dental industry |
| WO2010097149A3 (en) * | 2009-02-25 | 2010-11-11 | Goektas Ismail | Spray gun for grainy material |
| EP3636353A1 (en) * | 2018-06-22 | 2020-04-15 | PRC-Desoto International, Inc. | Front-loading adhesive and sealant retaining and dispensing systems |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0290259A3 (en) * | 1987-05-06 | 1990-03-07 | Milbar Corporation | Fluid actuated dispenser |
| DE9405385U1 (en) * | 1994-03-30 | 1994-08-11 | Schneider Friedhelm | Dispensing gun for tubular bags and cartridges |
| EP4151322A1 (en) * | 2021-09-21 | 2023-03-22 | Hilti Aktiengesellschaft | Coaxial cartridge with integrated reinforcement for pressure-free extrusion of a flowable multi-component mass |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3985268A (en) * | 1975-11-24 | 1976-10-12 | Wood Laurier A | Non-drip dispenser |
| CA1080172A (en) * | 1977-05-11 | 1980-06-24 | Yasuo Ichinose | Gun for extruding sealant |
-
1981
- 1981-01-31 JP JP56013188A patent/JPS57127467A/en active Pending
- 1981-12-16 GB GB8137911A patent/GB2092236A/en not_active Withdrawn
-
1982
- 1982-01-20 DE DE19823201630 patent/DE3201630A1/en not_active Withdrawn
- 1982-01-21 IT IT19217/82A patent/IT1150127B/en active
- 1982-01-28 ES ES82509155A patent/ES8308230A1/en not_active Expired
- 1982-01-29 BR BR8200498A patent/BR8200498A/en unknown
- 1982-01-29 BE BE0/207181A patent/BE891951A/en unknown
- 1982-01-29 FR FR8201417A patent/FR2499133A1/en not_active Withdrawn
- 1982-01-29 AU AU79976/82A patent/AU7997682A/en not_active Abandoned
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0369723A2 (en) * | 1988-11-18 | 1990-05-23 | Tatsuo Shinriki | An extruding method of an extrudable substance, a container and a device, used for the method |
| EP0369723A3 (en) * | 1988-11-18 | 1991-01-23 | Tatsuo Shinriki | An extruding method of an extrudable substance, a container and a device, used for the method |
| US5137184A (en) * | 1990-08-17 | 1992-08-11 | Tremco Incorporated | Caulking gun and cartridge |
| US5332122A (en) * | 1991-11-12 | 1994-07-26 | Thera Patent Gmbh & Co. Kg Gesellschaft Fur Industrielle Schutzrechte | Container for flowable substances |
| AU652675B2 (en) * | 1991-11-12 | 1994-09-01 | 3M Espe Ag | A container for flowable substances |
| US5419460A (en) * | 1991-11-12 | 1995-05-30 | Thera Patent Gmbh & Co. Kg Gesellschaft Fuer Industrielle Schutzrechte | Container for flowable substances |
| EP0575975A1 (en) * | 1992-06-24 | 1993-12-29 | Minnesota Mining And Manufacturing Company | Hand-held dispenser with pivotal cover for collapsible tubes |
| GB2437596A (en) * | 2006-04-25 | 2007-10-31 | Exchem Plc | Dispenser cartridge |
| EP2082812A1 (en) * | 2008-01-23 | 2009-07-29 | Heraeus Kulzer GmbH | Device for storing fluid components for the dental industry |
| WO2010097149A3 (en) * | 2009-02-25 | 2010-11-11 | Goektas Ismail | Spray gun for grainy material |
| EP3636353A1 (en) * | 2018-06-22 | 2020-04-15 | PRC-Desoto International, Inc. | Front-loading adhesive and sealant retaining and dispensing systems |
Also Published As
| Publication number | Publication date |
|---|---|
| IT8219217A0 (en) | 1982-01-21 |
| ES509155A0 (en) | 1982-12-16 |
| DE3201630A1 (en) | 1982-10-07 |
| BR8200498A (en) | 1982-11-30 |
| ES8308230A1 (en) | 1982-12-16 |
| IT1150127B (en) | 1986-12-10 |
| FR2499133A1 (en) | 1982-08-06 |
| AU7997682A (en) | 1982-08-12 |
| BE891951A (en) | 1982-07-29 |
| JPS57127467A (en) | 1982-08-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |