Patent ID: 7732735

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 hot melt adhesive supply unit (ASU), 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 mechanism electrically interconnecting said first and second, redundant heater circuits in an alternative manner such that if said first heater circuit experiences a failure, said second, redundant heater circuit can be 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 without interrupting the dispensing of the hot melt adhesive material, said dual-position switch mechanism being fixedly connected to said hot melt adhesive hose assembly such that said hot melt adhesive hose assembly, including said first and second heater circuits and said dual-position switch mechanism, effectively comprises a self-contained, stand-alone, independent operative component that can be utilized in conjunction with any adhesive supply unit (ASU).