Abstract:
A redundant control circuit comprises a pair of heater circuits for heating a hot melt adhesive hose assembly to a predetermined temperature level, and a pair of temperature sensors which are used to sense the temperature of the hot melt adhesive hose assembly and to control energization of the heater circuits in order to maintain the desired temperature level. Should a failure occur within the first one of the heater circuits, then an electrical switch mechanism would be activated so as to effectively remove the first, failed heater circuit from the hot melt adhesive hose assembly electrical circuitry, and electrically connect the second one of the heater circuits to the hot melt adhesive hose assembly electrical circuitry. Similar switching procedures would also be implemented in connection with the pair of temperature sens.
Abstract:
Α hot melt adhesive metering pump assembly, and an integral reservoir tank fluidically connected thereto and the hot melt adhesive metering pump assembly comprises a plurality of rotary, gear-type metering pumps which are arranged in a compact, longitudinally spaced manner upon a drive gear manifold. All of the driven gears of pumps are respectively driven by manifold pump drive gears which are rotatably mounted upon a common motor-driven rotary drive shaft rotatably disposed within the drive gear manifold, and a first side wall member of a base portion of the reservoir tank is integrally connected to a side wall portion of the drive gear manifold, while a second side wall member of the base portion of the reservoir tank is provided with a plurality of hose connections to which hot melt adhesive delivery hoses are to be connected so as to respectively convey the precisely metered amounts of the hot melt adhesive material toward the applicator heads .
Abstract:
A hot melt adhesive hose assembly has a redundant control circuit fixedly mounted thereon which comprises a pair of heater circuits and a pair of temperature sensors. Should a failure occur within the first one of the heater circuits, or within a first one of the temperature sensors, electrical switch mechanisms are activated so as to effectively remove the first, failed heater circuit or the first failed temperature sensor from the hot melt adhesive hose assembly electrical circuitry, and substantially simultaneously therewith, electrically connect the second one of the heater circuits or the second one of the temperature sensors to the hot melt adhesive hose assembly electrical circuitry. The hot melt adhesive hose assembly, with its redundant control circuit comprising the pair of heater circuits and the pair of temperature sensors, thus comprises a self -contained, stand-alone, independent operative component that can be utilized in conjunction with any hot melt adhesive supply unit (ASU).
Abstract:
A new and improved hybrid hot melt adhesive or other thermoplastic material dispensing system wherein two or more different hot melt adhesive or other thermoplastic material depositions, comprising, for example, two or more different types of patterns, two or more different types of application techniques or processes, or two or more different types of cyclical operations, can effectively be simultaneously achieved at substantially two or more different locations relative to an underlying substrate. The hybrid system comprises a metering station upon which is mounted a metering head comprising a plurality of metering head dispensing modules, and a pair or remote applicator heads comprising a pair of applicator head dispensing modules.
Abstract:
A hot melt adhesive hose assembly comprises a hot melt adhesive hose core, a pair of heater circuits wrapped around the external peripheral surface of the hose core, and a pair of temperature sensors also disposed in contact with the external peripheral surface of the hose core. A first one of the heater circuits and, a first one of the temperature sensors is electrically connected to the hot melt adhesive hose assembly electrical circuitry. Should a failure occur within the first heater circuit, or within the first temperature sensor, electrical switch mechanisms, which are fixedly mounted upon the hose assembly, can be actuated so as to effectively remove the first, failed heater circuit, or the first, failed temperature sensor from the electrical circuitry, and connect the second one of the heater circuits, or temperature sensors, to the hot melt adhesive hose assembly electrical circuitry.
Abstract:
A hot melt adhesive hose assembly comprises a pair of heater circuits and a pair of temperature sensors also disposed in contact with the external peripheral surface of the hose core . A first one of the heater circuit and a first one of the temperature sensors are initially electrically connected to the hot melt adhesive hose assembly electrical circuitry. Should a failure occur within said first circuit, or within said first temperature sensors, electrical switch mechanisms could be actuated so as to effectively remove the failed heater circuit or the failed temperature sensor from the hot melt adhesive hose assembly electrical circuitry, electrically connect the second one of the heater circuits or temperature sensors to said electrical circuitry. Such redundancy eliminates the need to halt production for replacement of the failed component thereby preventing lost production time.
Abstract:
A modular system (100), for delivering hot melt adhesive or other thermoplastic materials, comprises a modular metering assembly (104), having a plurality of metering stations disposed therein, which is able to be attachably and detachably mounted upon a modular tank (102) or supply assembly. Alternative-ly, one or more of the plurality of metering stations may be disposed externally of the modular metering assembly, and alternatively still further, one or more additional modular metering assemblies may be attachably and detachably connect-ed to the first modular metering assembly. In this manner, the entire modular system exhibits enhanced versatility and flexibility in order to effectively implement different material application procedures that may be required by means of a particular end-user customer.
Abstract:
A new and improved hot melt adhesive hose assembly comprises a hot melt adhesive hose core, a pair of heater circuits wrapped around the external peripheral surface of the hose core, and a pair of temperature sensors also disposed in contact with the external peripheral surface of the hose core. A first one of the heater circuits is initially electrically connected to the hot melt adhesive hose assembly electrical circuitry, and in a similar manner, a first one of the temperature sensors is electrically connected to the hot melt adhesive hose assembly electrical circuitry. Should a failure occur within the first one of the heater circuits, or within the first one of the temperature sensors, electrical switch mechanisms, which are fixedly mounted upon the hose assembly, can be actuated so as to effectively remove the first, failed heater circuit, or the first, failed temperature sensor from the hot melt adhesive hose assembly electrical circuitry, and substantially simultaneously therewith, electrically connect the second one of the heater circuits, or temperature sensors, to the hot melt adhesive hose assembly electrical circuitry. The hot melt adhesive hose assembly, including the heater circuits, the temperature sensors, and the switch mechanisms, effectively comprises a self-contained, stand-alone, or independent operative component that can be utilized in conjunction with any adhesive supply unit (ASU) and its temperature controller.
Abstract:
A new and improved remote, hot melt adhesive metering station (510) , for supplying predetermined or precisely metered volumes of hot melt adhesive material toward applicator head or dispensing nozzle structures, comprises a plurality of rotary, gear-type metering pumps (518) which are arranged in a compact, longitudinally spaced manner upon an axially elongated drive gear manifold (512) such that the rotational axes of the plurality of rotary, gear-type metering pumps (518) are disposed parallel and adjacent to one side of the axially elongated drive gear manifold (512) . Hot melt adhesive material is supplied from a remotely located adhesive supply unit (ASU) , to the drive gear manifold (512) , by an inlet supply port hose connection (542) , and all of the pump driven gears (524) of the plurality of rotary, gear- type metering pumps (518) are respectively driven by manifold pump drive gears (514) which are all rotatably mounted upon a common, motor-driven drive shaft (516) rotatably disposed within the drive gear manifold (512) . The drive gear manifold (512) is also provided with a plurality of outlet port hose connections (540) to which hot melt adhesive delivery hoses are to be connected.
Abstract:
A new and improved hot melt adhesive hose assembly comprises a hot melt adhesive hose core, a pair of heater circuits wrapped around the external peripheral surface of the hose core, and a pair of temperature sensors also disposed in contact with the external peripheral surface of the hose core. A first one of the heater circuits is initially electrically connected to the hot melt adhesive hose assembly electrical circuitry, and in a similar manner, a first one of the temperature sensors is electrically connected to the hot melt adhesive hose assembly electrical circuitry. Should a failure occur within the first one of the heater circuits, or within the first one of the temperature sensors, electrical switch mechanisms could be actuated so as to effectively remove the first, failed heater circuit or the first, failed temperature sensor from the hot melt adhesive hose assembly electrical circuitry, and substantially simultaneously, electrically connect the second one of the heater circuits or temperature sensors to the hot melt adhesive hose assembly electrical circuitry. Such redundancy eliminates the need to halt production for replacement of the failed component thereby preventing lost production time.