PARTS HAND OPERATED CAULKING GUNS

Brand	Owner	Address	Description
DURACORE	PATENT & INVESTMENT	8221-D Preston Court Jessup MD 20794	PARTS FOR HAND-OPERATED CAULKING GUNS; PARTS FOR NON-ELECTRIC CAULKING GUNS; PARTS FOR HAND TOOLS, namely, PARTS FOR HAND-OPERATED ADHESIVE AND SEALANT DISPENSING TOOLS; PARTS FOR HAND TOOLS, namely, PARTS FOR HANDHELD EXTRUSIVE DISPENSERS;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A caulking gun has a tubular chamber to surround sleeve-like rigid tubes and compressible sausage type containers containing viscous materials including sealants, adhesives, caulking, mastics and the like. When rigid tubes are loaded into the chamber, compressed gas is allowed to surround the sleeve and a plunger loaded within the rigid tube to equalize pressure around the outside of the rigid tube. If a sausage type container is loaded into the chamber, a removable plunger is also provided to form a tight seal between the perimeter of the plunger and the inner surface of the chamber. Compressed gas introduced into the chamber preferentially acts on the plunger and an underlying end wall of the sausage to expel the material, without imparting any significant pressure to other parts of the sausage. The caulking gun includes a variable flow rate nozzle which may be removed from the device. The nozzle may be replaced with similar or different nozzle pieces of various shapes and sizes, if desired. Hand operated controls vary the flow rate through the nozzle and control introduction of compressed gas when in use. These features may be incorporated into other portable, hand held dispensing devices powered by other pressurized fluids.