Powered caulking gun

Details Powered caulking gun Powered caulking gun

2006-06-20

2006-06-20

Nicolas, Frederick C. (Department: 3754)

Dispensing

With discharge assistant

Container with follower

C222S001000, C222S327000, C222S333000

Reexamination Certificate

active

07063240

ABSTRACT:
A caulking gun apparatus is described. In one embodiment the caulking gun includes an electric motor axially coupled to a plurality of cams having uneven surfaces thereon. In one aspect, the uneven surfaces are in slidable contact with at least one driving lever slidably positioned on a piston shaft. The piston shaft includes a piston end that is configured to engage with a cartridge used to dispense fluids such as caulk. The uneven surfaces are arranged relative one another such that when rotated, two or more of the cams about evenly exchange power transmission from the motor to the piston shaft to provide about an even fluid flow from a dispensing end of the cartridge.

REFERENCES:
patent: 2367346 (1945-01-01), Good
patent: 2928574 (1960-03-01), Wagner
patent: 3401847 (1968-09-01), Downing
patent: 4072254 (1978-02-01), Cox
patent: 4171072 (1979-10-01), Davis, Jr.
patent: 4264021 (1981-04-01), Davis, Jr.
patent: 4273269 (1981-06-01), Davis, Jr.
patent: 5775539 (1998-07-01), Bates et al.
patent: 6135327 (2000-10-01), Post et al.

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