Patent US3726440A successfully refreshed from Google Patents.
US3726440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Caulking gun
Assignee: SPEED CAULKING Inc
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Filing: 1970-12-21
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Granted: 1973-04-10
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Expires: 1990-12-21
Abstract
Abstract The cartridge chamber is connected with the trigger assembly by a tubular casing and a pressure member which are adjustable so as to provide a caulking gun of any desired length and the trigger assembly is rotatably connected to the tubular casing or to the cartridge chamber so that the relative position of these two components may be varied.
Inventors
- 👤 F Tallahassee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:25
CPC Classifications
B; B05; B05C; B05C17/00; B05C17/005; B05C17/01; B05C17/0116; B05C17/012; B05C17/0123
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
203 words
A caulking gun for use in dispensing material from a cartridge having a tubular body provided with a nozzle on one end thereof and having a movable piston received within its opposite end, said gun comprising: a chamber having front, rear and bottom walls for receiving said cartridge; a trigger assembly having a trigger; a tubular casing of substantial length connected at one end to said chamber and at its other end to said trigger assembly; an elongated pressure member extending from said trigger assembly and projecting into said chamber; push plate means disposed in said chamber and carried by the forward end of said pressure member for engaging the cartridge piston; said tubular casing comprising a pair of relatively movable, telescoping sections providing means for adjusting the length of said tubular casing varying the distance between said trigger assembly and said chamber; said pressure member comprising a pair of relatively movable, telescoping sections providing means for adjusting the length of said pressure member by substantially the same amount that the tubular casing is adjusted; and means responsive to actuation of said trigger for advancing said pressure member relative to the trigger assembly and simultaneously advancing said push plate means in said chamber.
Claim 2
Dependent Claim
203 words
A caulking gun for use in dispensing material from a cartridge having a tubular body provided with a nozzle on one end thereof and having a movable piston received within its opposite end, said gun comprising: a chamber having front, rear and bottom walls for receiving said cartridge; a trigger assembly having a trigger; a tubular casing of substantial length connected at one end to said chamber and at its other end to said trigger assembly; an elongated pressure member extending from said trigger assembly and projecting into said chamber; push plate means disposed in said chamber and carried by the forward end of said pressure member for engaging the cartridge piston; said tubular casing comprising a pair of relatively movable, telescoping sections providing means for adjusting the length of said tubular casing varying the distance between said trigger assembly and said chamber; said pressure member comprising a pair of relatively movable, telescoping sections providing means for adjusting the length of said pressure member by substantially the same amount that the tubular casing is adjusted; and means responsive to actuation of said trigger for advancing said pressure member relative to the trigger assembly and simultaneously advancing said push plate means in said chamber.
Claim 3
Dependent Claim
38 words
A caulking gun according to claim 1 including guide means for the pressure member for guiding one end thereof for reciprocation relative to said trigger assembly and for guiding the other end thereof for reciprocation in said chamber.
Claim 4
Dependent Claim
44 words
A caulking gun according to claim 1 in which said pressure member is spaced from said tubular casing for substantially the entire distance between the connection of the tubular casing and the trigger assembly and the connection of the tubular casing and said chamber.
Claim 5
Dependent Claim
19 words
A caulking gun according to claim 1 in which said pressure member is disposed coaxially within said tubular casing.
Claim 6
Dependent Claim
38 words
A caulking gun according to claim 4 including guide means for the pressure member for guiding one end thereof for reciprocation relative to said trigger assembly and for guiding the other end thereof for reciprocation in said chamber.
Claim 7
Dependent Claim
38 words
A caulking gun according to claim 1 in which both said telescoping tubular casing and said telescoping pressure member include a plurality of spaced-apart latch means for holding said telescoping casing and said telescoping member in adjusted position.
Claim 8
Dependent Claim
57 words
A caulking gun according to claim 1 in which one of said sections of said tubular casing is connected to said trigger assembly by means permitting relative rotation between the trigger assembly and said one section, and means is provided for selectively preventing relative rotation between the trigger assembly and said one section of the tubular casing.
Claim 9
Dependent Claim
202 words
A caulking gun for use in dispensing material from a cartridge having a tubular body provided with a nozzle on one end thereof and having a movable piston received within its opposite end, said gun comprising: a chamber having front, rear and bottom walls for receiving said cartridge; a trigger assembly having a trigger; means connecting said chamber with said trigger assembly for rotation relative thereto, said means comprising a circular member carried by the rear wall of the chamber and a channel shaped member carried by the trigger assembly and enclosing the peripheral portion of the circular member; means to selectively fixedly secure together said trigger assembly and said chamber and thereby prevent relative rotation therebetween including aligned openings provided in the circular member and in the channel shaped member and a pin selectively inserted in said aligned openings; a pressure rod extending from said trigger assembly and projecting into said chamber; push plate means disposed in said chamber and carried by the forward end of said pressure rod for engaging the cartridge piston; and means responsive to actuation of said trigger for advancing said rod relative to the trigger assembly and simultaneously advancing said push plate means in said chamber.
Claim 10
Dependent Claim
202 words
A caulking gun for use in dispensing material from a cartridge having a tubular body provided with a nozzle on one end thereof and having a movable piston received within its opposite end, said gun comprising: a chamber having front, rear and bottom walls for receiving said cartridge; a trigger assembly having a trigger; means connecting said chamber with said trigger assembly for rotation relative thereto, said means comprising a circular member carried by the rear wall of the chamber and a channel shaped member carried by the trigger assembly and enclosing the peripheral portion of the circular member; means to selectively fixedly secure together said trigger assembly and said chamber and thereby prevent relative rotation therebetween including aligned openings provided in the circular member and in the channel shaped member and a pin selectively inserted in said aligned openings; a pressure rod extending from said trigger assembly and projecting into said chamber; push plate means disposed in said chamber and carried by the forward end of said pressure rod for engaging the cartridge piston; and means responsive to actuation of said trigger for advancing said rod relative to the trigger assembly and simultaneously advancing said push plate means in said chamber.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |