US 12,311,403 B1 · Drill powered caulking gun

Abstract

A drill powered caulking gun preferably includes a cartridge holder, a lead screw, a lead screw nut, a thrust bearing, a washer and a plunger. The cartridge holder preferably includes a front end cap, a cartridge support member and a rear end cap. The lead screw preferably includes a threaded diameter, a hex drive member, a thrust bearing shoulder and a threaded end. The threaded diameter includes a fine thread. The lead screw nut includes a retention flange, a D-shaped portion and a threaded body. The lead screw nut is inserted through a D-shaped opening in the rear end cap. The lead screw nut is retained in the rear end cap with a jam nut. The plunger, thrust bearing and washer are rotatably retained on the threaded end with a lock nut. The plunger is used to push a diaphragm in the caulking cartridge to dispense caulk through a nozzle.

Claims18

Dependent claims

A drill powered caulking gun for retaining a caulking cartridge, the caulking cartridge includes a diaphragm for dispensing caulk, comprising:

a cartridge holder includes a first end and a second, a space between said first end and said second end is sized to axially retain the caulking cartridge;
a lead screw includes one end threadably retained in said first end of said cartridge holder, wherein said one end of said lead screw is capable of being directly retained by a chuck of the drill, said lead screw and the chuck are located on the same centerline;
a plunger is rotatably retained on an opposing end of said lead screw, wherein said plunger pushes the diaphragm to dispense caulk;
and
a thrust washer is located behind said plunger.

2 more elements

Dependencies are inferred from the claim text.

Drill powered caulking gun

Life of this patent

Drill powered caulking gun

Life of this patent

Abstract

Claims18