US3640431A — Shutoff nozzle for caulking cartridge

Claim 1

Independent Claim 306 words

In combination, a caulking gun having an open top, cartridgereceiving chamber; pressure-applying mechanism mounted at one end of the chamber; and an end plate having a caulking cartridge discharge tip receiving slot formed therein fixed to the other end of the chamber, and a caulking cartridge having a discharge nozzle extending outwardly from the discharge end thereof disposed in said chamber with the discharge tip of the nozzle extending through said slot, the end wall of the cartridge at said discharge end having a dispensing opening formed therein which is radially offset a substantial distance from the longitudinal axis of the cartridge, said discharge nozzle having a discharge tip and a base disposed contiguous to the outer surface of said end wall, and means mounting the base of said discharge nozzle on said cartridge for rotation about the longitudinal axis of the cartridge, the surface of the base being in sliding frictional engagement with the opposed surface of the end wall and providing a valve closure for said dispensing opening, the discharge tip and the discharge passage in the tip and base being offset radially with respect to the longitudinal axis of the cartridge by substantially the same distance that the dispensing opening is offset, the tip of the discharge nozzle having a close sliding fit in said slot and being held against rotation relative to said end plate by the opposed sidewalls of the slot, whereby by manually grasping the exposed body of the cartridge while it is in operative position in the caulking gun and rotating it relative to the discharge nozzle the discharge passage may be selectively brought into alignment with said dispensing opening for discharging material from the cartridge and tip or moved out of alignment therewith for closing the dispensing opening and preventing the flow of material through said dispensing opening.

Claim 2

Dependent Claim 306 words

In combination, a caulking gun having an open top, cartridgereceiving chamber; pressure-applying mechanism mounted at one end of the chamber; and an end plate having a caulking cartridge discharge tip receiving slot formed therein fixed to the other end of the chamber, and a caulking cartridge having a discharge nozzle extending outwardly from the discharge end thereof disposed in said chamber with the discharge tip of the nozzle extending through said slot, the end wall of the cartridge at said discharge end having a dispensing opening formed therein which is radially offset a substantial distance from the longitudinal axis of the cartridge, said discharge nozzle having a discharge tip and a base disposed contiguous to the outer surface of said end wall, and means mounting the base of said discharge nozzle on said cartridge for rotation about the longitudinal axis of the cartridge, the surface of the base being in sliding frictional engagement with the opposed surface of the end wall and providing a valve closure for said dispensing opening, the discharge tip and the discharge passage in the tip and base being offset radially with respect to the longitudinal axis of the cartridge by substantially the same distance that the dispensing opening is offset, the tip of the discharge nozzle having a close sliding fit in said slot and being held against rotation relative to said end plate by the opposed sidewalls of the slot, whereby by manually grasping the exposed body of the cartridge while it is in operative position in the caulking gun and rotating it relative to the discharge nozzle the discharge passage may be selectively brought into alignment with said dispensing opening for discharging material from the cartridge and tip or moved out of alignment therewith for closing the dispensing opening and preventing the flow of material through said dispensing opening.

Claim 3

Dependent Claim 44 words

The combination according to claim 1 in which indicating means is carried on the outer surface of the cartridge adjacent the discharge end thereof and is located in radial alignment with the dispensing opening where it is nearest the peripheral surface of the cartridge.

Claim 4

Dependent Claim 73 words

The combination according to claim 1 in which the base of the discharge nozzle is flat and circular and the means mounting the discharge nozzle on the end wall comprises a circular depression formed in the outer surface of the end wall, the circular base being seated in said depression for rotation therein, and an annular collar fixed to the body of the cartridge and bearing against the outer face of said base.

Claim 5

Dependent Claim 62 words

The combination according to claim 3 in which visual indicating means is carried on the outer surface of the cartridge body adjacent the end carrying the discharge nozzle, said indicating means being located in alignment with the dispensing opening at the point where the periphery of the dispensing opening is at the least radial distance from the peripheral surface of the cartridge.

Claim 6

Dependent Claim 235 words

In combination, a caulking gun having a cartridge-receiving chamber with an access opening along the top thereof; pressure-applying mechanism mounted at one end of the chamber; and an end plate having a caulking cartridge discharge tip receiving opening formed therein fixed to the other end of the chamber, and a caulking cartridge having a discharge nozzle extending outwardly from the discharge end thereof disposed in said chamber with the discharge tip of the nozzle extending through said opening, means mounting said discharge nozzle on said cartridge for Rotation relative thereto, said cartridge having an end wall formed with a dispensing opening, and valve means for said dispensing opening actuated by rotation of said cartridge relative to said nozzle for controlling the discharge of material from the cartridge through said dispensing opening, the tip of the discharge nozzle having a close fit in the end plate opening and being held against rotation relative to said end plate by the opposed walls of said end plate opening, whereby by manually grasping the exposed body of the cartridge while it is in operative position in the caulking gun and rotating it relative to the discharge nozzle, the discharge passage may be selectively brought into alignment with said dispensing opening for discharging material from the cartridge and tip or moved out of alignment therewith for closing the dispensing opening and preventing the flow of material through said dispensing opening.

Claim 7

Dependent Claim 235 words

In combination, a caulking gun having a cartridge-receiving chamber with an access opening along the top thereof; pressure-applying mechanism mounted at one end of the chamber; and an end plate having a caulking cartridge discharge tip receiving opening formed therein fixed to the other end of the chamber, and a caulking cartridge having a discharge nozzle extending outwardly from the discharge end thereof disposed in said chamber with the discharge tip of the nozzle extending through said opening, means mounting said discharge nozzle on said cartridge for Rotation relative thereto, said cartridge having an end wall formed with a dispensing opening, and valve means for said dispensing opening actuated by rotation of said cartridge relative to said nozzle for controlling the discharge of material from the cartridge through said dispensing opening, the tip of the discharge nozzle having a close fit in the end plate opening and being held against rotation relative to said end plate by the opposed walls of said end plate opening, whereby by manually grasping the exposed body of the cartridge while it is in operative position in the caulking gun and rotating it relative to the discharge nozzle, the discharge passage may be selectively brought into alignment with said dispensing opening for discharging material from the cartridge and tip or moved out of alignment therewith for closing the dispensing opening and preventing the flow of material through said dispensing opening.

Claim 8

Dependent Claim 224 words

In combination, a caulking gun having an open-top, cartridge-receiving chamber; pressure-applying mechanism mounted at one end of the chamber; and an end plate having a caulking cartridge discharge tip receiving opening formed therein fixed to the other end of the chamber, and a caulking cartridge having a discharge nozzle rotatably mounted thereon and extending outwardly from the discharge end thereof disposed in said chamber with the discharge tip of the nozzle extending through said opening, the wall of said opening engaging said discharge tip preventing rotation of said discharge nozzle relative to said end plate, said cartridge comprising an elongated, substantially rigid, cylindrical body; an end wall closing the discharge end of the body and having a dispensing opening formed therein; a dispensing piston slidably mounted in said body for movement from the end of the body opposite said end wall to adjacent said end wall in response to pressure applied thereto by said pressure-applying mechanism; and valve means operable for controlling the discharge of caulking material from the cartridge through said dispensing opening and discharge nozzle when pressure is applied to material in said body by way of said sliding piston, said valve means being operable by manually grasping the exposed body of the cartridge while it is in operative position in the caulking gun and rotating it relative to the cartridge-receiving chamber.

Claim 9

Dependent Claim 224 words

In combination, a caulking gun having an open-top, cartridge-receiving chamber; pressure-applying mechanism mounted at one end of the chamber; and an end plate having a caulking cartridge discharge tip receiving opening formed therein fixed to the other end of the chamber, and a caulking cartridge having a discharge nozzle rotatably mounted thereon and extending outwardly from the discharge end thereof disposed in said chamber with the discharge tip of the nozzle extending through said opening, the wall of said opening engaging said discharge tip preventing rotation of said discharge nozzle relative to said end plate, said cartridge comprising an elongated, substantially rigid, cylindrical body; an end wall closing the discharge end of the body and having a dispensing opening formed therein; a dispensing piston slidably mounted in said body for movement from the end of the body opposite said end wall to adjacent said end wall in response to pressure applied thereto by said pressure-applying mechanism; and valve means operable for controlling the discharge of caulking material from the cartridge through said dispensing opening and discharge nozzle when pressure is applied to material in said body by way of said sliding piston, said valve means being operable by manually grasping the exposed body of the cartridge while it is in operative position in the caulking gun and rotating it relative to the cartridge-receiving chamber.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1975-02-07	1975-08-09	1976-02-08	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1979-02-07	1979-08-09	1980-02-08	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1983-02-07	1983-08-09	1984-02-08	$7700.00	Window Closed / Lapsed

Shutoff nozzle for caulking cartridge

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