Hot melt adhesive hose assembly having redundant components
A technology of hose assembly and hot melt adhesive, applied in the direction of heating element shape, pipe connection arrangement, pipe/pipe joint/pipe fitting, etc., can solve the problem of not disclosing heating elements, etc.
Inactive Publication Date: 2013-05-22
ILLINOIS TOOL WORKS INC
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Problems solved by technology
[0007] While the hot melt adhesive dispensing apparatus using redundant temperature sensing devices as disclosed in the aforementioned patent application publication to Raterman et al. operates satisfactorily, several operational deficiencies of the disclosed apparatus are also apparent.
For example, first note that while redundant temperature sensing devices are disclosed, redundant heating elements are not disclosed
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[0015]Referring now to the drawings, and more particularly to Figure 1 thereof, there is disclosed a new and improved hot melt adhesive hose assembly for dispensing hot melt adhesive material as constructed in accordance with the principles and teachings of the present invention, and generally illustrated in the accompanying drawings Mark 10 indicates. More specifically, the illustrated new and improved hot melt adhesive hose assembly 10 includes an applicator end and an adhesive supply unit end, the applicator end being provided for operative connection to a hot melt adhesive dispensing applicator, A first end fitting 12 of a nozzle or the like, on the glue supply unit end is provided with a second end fitting 14 for operative connection to a source of hot melt glue material known as an glue supply unit (ASU). End fittings 12, 14 are provided on opposite ends of a tubular member 16 made of Teflon (TEFLON) and a suitable braided braid 22 of stainless steel wire is provided the...
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A new and improved hot melt adhesive hose assembly has 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.
Description
[0001] Cross References to Related Applications [0002] The present application is a continuation-in-part of US Patent Application Serial No. 11 / 123,053, filed May 6, 2005 in the name of Daniel D. Bourget et al., entitled "HOT MELT ADHESIVE HOSE ASSEMBY HAVING REDUNDANT COMPONENTS". This patent application is also related to U.S. Patent Application Serial No. 11 / 123,028, also filed May 6, 2005 in the name of Daniel D. Bourget et al., entitled "REDUDANT CONTROL CIRCUIT FOR HOT MELT ADHESIVE HOSEASSEMBLY HEATER CIRCUITS AND TEMPERATURE SENSORS" , and is also related to U.S. Patent Application Serial No. 11 / 250,463, also filed on October 17, 2005 in the name of Daniel D. Bourget et al., entitled "REDUANT CONTROL CIRCUIT FOR HOTMELT ADHESIVE HOSE AS SEMBLY HEATER CIRCUITS AND TEMPERATURE SENSORS." All of the applications listed above are hereby incorporated by reference in their entirety. technical field [0003] The present invention relates generally to hot melt adhesive dispe...
Claims
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IPC IPC(8): G05B19/048G05D23/19B05C5/00B05C11/10B67D7/08B67D7/14B67D7/80
CPCG05D23/1928B05C11/1042G05B19/048F16L47/02B05B7/1693H05B3/58B05C5/00B05C11/10G05D23/19
Inventor 丹尼尔·D.·布尔热保罗·J.·唐利迈里·麦克莱恩
Owner ILLINOIS TOOL WORKS INC