초록 ▼

A heated handgun and hose assembly adapted to dispense heated liquids, such as hot melt adhesives, coatings, sealants, caulks and various other materials. The handgun and hose assembly includes a gripping portion and an actuating lever extending generally in line with the hose. The actuating lever o

A heated handgun and hose assembly adapted to dispense heated liquids, such as hot melt adhesives, coatings, sealants, caulks and various other materials. The handgun and hose assembly includes a gripping portion and an actuating lever extending generally in line with the hose. The actuating lever operates a valve integrated with the nozzle to selectively allow or prevent the flow of liquid through the nozzle. A connection between the actuating lever and the nozzle limits the stroke of the valve and the travel of the actuating lever. A hose heater and multi-layer insulating materials wrap around the body of the valve as well as along the entire length of the hose. A membrane switch is incorporated into the actuating lever for applications utilizing an electrically-operated pump. The valve includes a suck-back feature to improve liquid cut-off and to prevent drooling of liquid from the nozzle outlet.

대표청구항 ▼

[ Wherein we claim:] [1.] A heated handgun and hose assembly comprising:a hose having a multi-layer construction including a hose core with a liquid flow passage, and outer layers including an electric heating layer and at least one layer of thermal insulation;a tubular member mounted within said ou

[ Wherein we claim:] [1.] A heated handgun and hose assembly comprising:a hose having a multi-layer construction including a hose core with a liquid flow passage, and outer layers including an electric heating layer and at least one layer of thermal insulation;a tubular member mounted within said outer layers at one end portion of said hose;a nozzle having an outlet and coupled for thermal and fluid communication with said tubular member ;a valve mounted in said tubular member; andan actuating member coupled to said valve for moving said valve between open and closed positions to respectively allow and prevent liquid flow through the passage in said hose core and through said tubular member and said nozzle outlet.