Patent ID: 7773867

Claim:
A hot melt adhesive hose assembly, comprising: a hose core conduit for conducting hot melt adhesive material from a hot melt adhesive supply end portion of said hose core conduit, which is adapted to be fluidically connected to a supply of hot melt adhesive material, to a hot melt adhesive applicator end portion of said hose core conduit which is adapted to be fluidically connected to a hot melt adhesive material applicator for dispensing hot melt adhesive material; an electrical power supply circuit; a first heater circuit operatively connected to said hose core conduit for heating said hose core conduit, when said first heater circuit is electrically connected to said electrical power supply circuit, so as to maintain the temperature of the hot melt adhesive material, being conducted through said hose core conduit, at a predetermined temperature level; a second redundant heater circuit operatively connected to said hose core conduit for heating said hose core conduit, when said second redundant heater circuit is electrically connected to said electrical power supply circuit, so as to maintain the temperature of the hot melt adhesive material, being conducted through said hose core conduit, at the predetermined temperature level; and a dual-position switch component, operatively mounted upon said hose core conduit, for electrically interconnecting said first and second redundant heater circuits in an alternative manner to said electrical power supply circuit such that if said first heater circuit experiences a failure, said first heater circuit can be immediately electrically disconnected from said electrical power supply circuit while said second redundant heater circuit can be immediately electrically connected to said electrical power supply circuit so as to effectively replace said first heater circuit, which has experienced a failure, within said electrical power supply circuit, whereby the temperature level of the hot melt adhesive material, being conducted through said hose core conduit, is able to be maintained at said predetermined temperature level without interrupting the dispensing of the hot melt adhesive material.