Redundant control circuit for hot melt adhesive hose assembly heater circuits and temperature sensors

A hot melt adhesive hose assembly having a redundant control circuit fixedly connected thereto, comprising:

• a power source which is operatively associated with a hot melt adhesive supply unit (ASU);
• an electrical connector mounted upon one end of a hot melt adhesive hose assembly for electrical connection to said power source operatively associated with said adhesive supply unit (ASU);
• a pair of heater assemblies, wherein each one of said pair of heater assemblies is adapted to be operatively associated with said hot melt adhesive hose assembly so as to heat the hot melt adhesive material, fluidically conducted internally within said hot melt adhesive hose assembly, to a predetermined temperature level;
• switching means for selectively electrically connecting each one of said pair of heater assemblies to said power source by a pair of power lines;
• means for monitoring the functionality of each one of said pair of heater assemblies;
• and
• means for controlling said switching means so as to initially electrically connect a first one of said heater assemblies to said power source, to electrically connect a second one of said heater assemblies to said power source while disconnecting said first one of said heater assemblies from said power source if said first one of said heater assemblies is determined to be defective by said monitoring means;
• said electrical connector, said pair of heater assemblies, said switching means, said means for monitoring the functionality of each one of said pair of heater assemblies, and said means for controlling said switching means being fixedly connected to said hot melt adhesive hose assembly such that said hot melt adhesive hose assembly, including said electrical connector, said pair of heater assemblies, said switching means, said means tot monitoring the functionality of each one of said pair of heater assemblies, and said means for controlling said switching means, effectively comprises a self-contained, stand-alone, independent operative component that can be utilized in conjunction with any adhesive supply unit (ASU).

A hot melt adhesive hose assembly having a redundant control circuit fixedly connected thereto, comprising:

• a power source which is operatively associated with a hot melt adhesive supply unit (ASU);
• an electrical connector mounted upon one end of a hot melt adhesive hose assembly for electrical connection to said power source operatively associated with said adhesive supply unit (ASU);
• a pair of heater assemblies, wherein each one of said pair of heater assemblies is adapted to be operatively associated with said hot melt adhesive hose assembly so as to heat the hot melt adhesive material, fluidically conducted internally within said hot melt adhesive hose assembly, to a predetermined temperature level;
• a temperature sensor, wherein said temperature sensor is adapted to be operatively associated with said hot melt adhesive hose assembly so as to sense the temperature level of the hot melt adhesive material being fluidically conducted internally within said hot melt adhesive hose assembly, wherein said sensed temperature level is used for effectively controlling the energization of each one of said pair of heater assemblies so as to maintain the temperature level of the hot melt adhesive material, being conducted internally within said hot melt adhesive hose assembly, at said predetermined temperature level;
• switching means for selectively electrically connecting each one of said pair of heater assemblies to said power source by a pair of power lines;
• means for monitoring the functionality off each one of said pair of heater assemblies;
• and
• means for controlling said switching means so as to initially electrically connect a first one of said heater assemblies to said power source, to electrically connect a second one of said heater assemblies to said power source while disconnecting said first one of said heater assemblies from said power source if said first one of said heater assemblies is determined to be defective by said monitoring means;
• said electrical connector, said pair of heater assemblies, said switching means, said means for monitoring the functionality of each one of said pair of heater assemblies, and said means for controlling said switching means being fixedly connected to said hot melt adhesive hose assembly such that said hot melt adhesive hose assembly, including said electrical connector, said pair of heater assemblies, said switching means, said means for monitoring the functionality of each one of said pair of heater assemblies, and said means for controlling said switching means, effectively comprises a self-contained, stand-alone, independent operative component that can be utilized in conjunction with any adhesive supply unit (ASU).