Abstract: A hose for carrying liquid, such as hot met adhesive, within a predetermined elevated temperature range. The hose includes a tube for carrying liquid therethrough. The tube is encased in a reinforcing layer with an outer surface. A heater wire, which has an inner core encased in a protective casing, is wound around the reinforcing layer such that the protective casing is in direct contact with the outer surface of the reinforcing layer. Preferably, the protective casing is made from polytetraflouroethylene (PTFE). A thermal insulation layer is disposed around the heater wire and the reinforcing layer to act as a barrier to heat loss from the hose.

Abstract: A hose for carrying liquid, such as hot met adhesive, within a predetermined elevated temperature range. The hose includes a tube for carrying liquid therethrough. The tube is encased in a reinforcing layer with an outer surface. A heater wire, which has an inner core encased in a protective casing, is wound around the reinforcing layer such that the protective casing is in direct contact with the outer surface of the reinforcing layer. Preferably, the protective casing is made from polytetraflouroethylene (PTFE). A thermal insulation layer is disposed around the heater wire and the reinforcing layer to act as a barrier to heat loss from the hose.

Abstract: 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.