Patent US4022355A successfully refreshed from Google Patents.
US4022355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cartridge for containing and dispensing viscous material
Assignee: Individual
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Filing: 1976-03-26
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Granted: 1977-05-10
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Expires: 1996-03-26
Abstract
Abstract A cartridge for containing and dispensing caulking compound comprises an elongated tubular member, generally cylindrical in configuration, one end of which has a fixed end wall including a dispensing opening therethrough and a spout attached to the end wall, while the other end of the tubular member is closed by a resilient, annular, floating member slidably mounted within the tubular member. The floating member is impervious and is made of a flexible material. When employed in conjunction with a standard caulking gun of the plunger type, the force of the plunger bears directly on the floating member which thereby expands in diameter and decreases in width and transmits pressure to the caulking for dispensing. When the plunger is suddenly withdrawn, the expansion of the floating member effectively absorbs the pressure forces within the cartridge thereby minimizing the amount of undesirable leakage of the caulking from the cartridge.
Inventors
- 👤 George Sabaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:02
CPC Classifications
B; B05; B05C; B05C17/00; B05C17/005; B05C17/00576
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
241 words
An improved cartridge for containing and dispensing a viscous material, said cartridge including an elongated tubular member having a cylinderical inner surface, said tubular member having at one end a fixed wall having a dispensing opening therethrough, the improvement comprising a resilient, enclosed member, disposed at the end of said tubular member opposite said fixed wall, said resilient, enclosed member being slidably mounted within said tubular member, said resilient, enclosed member being generally cylindrical in configuration, having substantially parallel side walls, the diameter of said resilient, enclosed member being less than the diameter of said tubular member, such that said resilient, enclosed member is normally not in tight contact with the inner surface of said tubular member, said resilient, enclosed member being air-impervious and collapsible, increasing in diameter and decreasing in width when dispensing pressure from a dispensing gun plunger is applied thereto for selectively placing said resilient, enclosed member in tight contact with the inner surface of said tubular member, and advancing the viscous material through said tubular member and out said dispensing opening, said resilient, enclosed member reverting to its original configuration and normal state of not being in tight contact with the inner surface of said tubular member when the pressure from the plunger is released, whereby pressure forces accumulated in the viscous material act on the resilient, enclosed member to displace it away from the dispensing opening rather than advancing the viscous material through said dispensing opening.
Claim 2
Dependent Claim
241 words
An improved cartridge for containing and dispensing a viscous material, said cartridge including an elongated tubular member having a cylinderical inner surface, said tubular member having at one end a fixed wall having a dispensing opening therethrough, the improvement comprising a resilient, enclosed member, disposed at the end of said tubular member opposite said fixed wall, said resilient, enclosed member being slidably mounted within said tubular member, said resilient, enclosed member being generally cylindrical in configuration, having substantially parallel side walls, the diameter of said resilient, enclosed member being less than the diameter of said tubular member, such that said resilient, enclosed member is normally not in tight contact with the inner surface of said tubular member, said resilient, enclosed member being air-impervious and collapsible, increasing in diameter and decreasing in width when dispensing pressure from a dispensing gun plunger is applied thereto for selectively placing said resilient, enclosed member in tight contact with the inner surface of said tubular member, and advancing the viscous material through said tubular member and out said dispensing opening, said resilient, enclosed member reverting to its original configuration and normal state of not being in tight contact with the inner surface of said tubular member when the pressure from the plunger is released, whereby pressure forces accumulated in the viscous material act on the resilient, enclosed member to displace it away from the dispensing opening rather than advancing the viscous material through said dispensing opening.
Claim 3
Dependent Claim
21 words
An improved cartridge for containing and dispensing a viscous material as in claim 1 wherein the resilient, enclosed member is hollow.
Claim 4
Dependent Claim
27 words
An improved cartridge for containing and dispensing a viscous material as in claim 1 wherein the resilient, enclosed member has an annular wiper on its exterior diameter.
Claim 5
Dependent Claim
31 words
An improved cartridge for containing and dispensing a viscous material as in claim 1 wherein a plurality of annular wipers are provided on the exterior surface of said resilient, enclosed member.
Claim 6
Dependent Claim
24 words
An improved cartridge for containing and dispensing a viscous material as in claim 1 wherein the resilient, enclosed member is made from sponge rubber.
Claim 7
Dependent Claim
24 words
An improved cartridge for containing and dispensing a viscous material as in claim 1 wherein the resilient, enclosed member is made from sponge plastic.
Claim 8
Dependent Claim
23 words
An improved cartridge for containing and dispensing a viscous material as in claim 1 wherein the resilient, enclosed member is made from silastic.
Claim 9
Dependent Claim
238 words
A floating member for use in dispensing a viscous material from a cartridge, said cartridge including an elongated tubular member having a cylindrical inner surface, said tubular member further having at one end a fixed wall having a dispensing opening therethrough, said floating member comprising a resilient, enclosed, hollow member generally cylindrical in configuration, having substantially parallel side walls, said floating member being slidably receivable in said tubular member, said floating member having a diameter less than that of said tubular member such that said floating member is normally not in tight contact with the inner surface of said tubular member when received therein, said energy dissipating member further being air-impervious and collapsible, increasing in diameter and decreasing in width when one of said side walls is placed against the viscous material in the cartridge and the other side wall is subjected to a dispensing force such that the floating member is disposed in tight contact with the inner surface of said tubular member for advancing the viscous material through the cartridge and out the dispensing opening, said floating member reverting to its original configuration and normal state of not being in tight contact with the inner surface of said tubular member when the force is released whereby pressure forces accumulated in the viscous material act on the floating member to displace it away from the dispensing opening rather than advancing the viscous material through said dispensing opening.
Claim 10
Dependent Claim
238 words
A floating member for use in dispensing a viscous material from a cartridge, said cartridge including an elongated tubular member having a cylindrical inner surface, said tubular member further having at one end a fixed wall having a dispensing opening therethrough, said floating member comprising a resilient, enclosed, hollow member generally cylindrical in configuration, having substantially parallel side walls, said floating member being slidably receivable in said tubular member, said floating member having a diameter less than that of said tubular member such that said floating member is normally not in tight contact with the inner surface of said tubular member when received therein, said energy dissipating member further being air-impervious and collapsible, increasing in diameter and decreasing in width when one of said side walls is placed against the viscous material in the cartridge and the other side wall is subjected to a dispensing force such that the floating member is disposed in tight contact with the inner surface of said tubular member for advancing the viscous material through the cartridge and out the dispensing opening, said floating member reverting to its original configuration and normal state of not being in tight contact with the inner surface of said tubular member when the force is released whereby pressure forces accumulated in the viscous material act on the floating member to displace it away from the dispensing opening rather than advancing the viscous material through said dispensing opening.
Claim 11
Dependent Claim
17 words
A floating member as in claim 8 furhter including an annular wiper disposed on its exterior diameter.
Claim 12
Dependent Claim
13 words
A floating member as in claim 8 which is made from sponge plastic.
Claim 13
Dependent Claim
13 words
A floating member as in claim 8 which is made from sponge rubber.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-09 | 1980-11-08 | 1981-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-09 | 1984-11-08 | 1985-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-09 | 1988-11-08 | 1989-05-10 | $7700.00 | Window Closed / Lapsed |