Cordless DC caulk gun

Details Cordless DC caulk gun Cordless DC caulk gun

2007-08-28

2007-08-28

Kaufman, Joseph A. (Department: 3754)

Dispensing

Automatic control

Of dispensers with fluid pressure discharge assistance

C222S326000, C222S387000, C222S389000

Reexamination Certificate

active

10929360

ABSTRACT:
A cordless device for dispensing a viscous material including housing components for a product cartridge, a DC motor, an air pump, and a rechargeable battery. The device has a pressure limiting switch that maintains a pre-determined pressure of compressed air in a gas enclosure. A manually actuated trigger, when depressed, is adapted to open a flow valve allowing the device to forcefully dispense the viscous material from the product cartridge.

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