Hot melt adhesive hose assembly having redundant components

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;
• a first temperature sensor operatively connected to said hose core conduit for detecting the temperature of said hose core conduit so as to ensure that said heater circuit is properly heating said hose core conduit in order to maintain the temperature of the hot melt adhesive material, being conducted through said hose core conduit, to the predetermined temperature level;
• a second, redundant temperature sensor operatively connected to said hose core conduit for detecting the temperature of said hose core conduit so as to ensure that said heater circuit is properly heating said hose core conduit in order to maintain the temperature of the hot melt adhesive material, being conducted through said hose core conduit, to the predetermined temperature level;
• a first 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;
• a second dual-position switch mechanism electrically interconnecting said first and second, redundant temperature sensors 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 first and second dual-position switch mechanisms 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, said first and second temperature sensors, and said first and second dual position switch mechanisms, effectively comprises a self-contained, standalone, independent operative component that can be utilized in conjunction with any adhesive supply unit (ASU).

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 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 temperature sensor operatively connected to said hose core conduit for detecting the temperature of said hose core conduit so as to ensure that either one of said first and second redundant heater circuits is properly heating said hose core conduit in order to maintain the temperature of the hot melt adhesive material, being conducted through said hose core conduit, to 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 redundant heater circuits, said temperature sensor, 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).