IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0033260
(2013-09-20)
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등록번호 |
US-9126222
(2015-09-08)
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발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
Levenfeld Pearlstein, LLC
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인용정보 |
피인용 횟수 :
1 인용 특허 :
28 |
초록
▼
A hot melt adhesive material dispensing system comprises two separate and independent rotary, gear-type metering pumps, or two separate and independent sets of pumps, which are able to output precisely metered amounts of hot melt adhesive material. The hot melt adhesive materials discharged are able
A hot melt adhesive material dispensing system comprises two separate and independent rotary, gear-type metering pumps, or two separate and independent sets of pumps, which are able to output precisely metered amounts of hot melt adhesive material. The hot melt adhesive materials discharged are able to be independently outputted through suitable output devices onto a substrate to result in different outputted volumes of the hot melt adhesive material in accordance with predeterminedly desired patterns, or at predeterminedly desired locations. The hot melt adhesive materials may also have their volumetric outputs combined such that the discharged or outputted volumes of the hot melt adhesive material onto the substrate may be, for example, twice the outputted volumes of the hot melt adhesive outputted onto the substrate from only one of the two pumps, or from only one of the two pumps.
대표청구항
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1. A fluid dispensing system, comprising: a supply of fluid to be dispensed;an output device having at least one dispensing nozzle;at least two pumps for fluidically pumping fluid from said supply of fluid to said at least one dispensing nozzle; andvalve means comprising a first valve positioned dow
1. A fluid dispensing system, comprising: a supply of fluid to be dispensed;an output device having at least one dispensing nozzle;at least two pumps for fluidically pumping fluid from said supply of fluid to said at least one dispensing nozzle; andvalve means comprising a first valve positioned downstream from each of said at least two pumps and upstream from said at least one dispensing nozzle, said valve means further comprising a second valve positioned downstream from only one of said at least two pumps, said valve means for permitting said fluid dispensing system to dispense a varied volume of fluid through THREE dispensing states, a FIRST OFF state wherein said valve means is CLOSED with respect to both of said at least two pumps such that fluid outputs from both of said at least two pumps is prevented from reaching said at least one dispensing nozzle, a SECOND PARTIAL VOLUME state wherein said valve means is CLOSED with respect to a first one of said at least two pumps but OPENED with respect to a second one of said at least two pumps so as to permit the fluid output from said second one of said at least two pumps to reach said at least one dispensing nozzle, and a THIRD FULL VOLUME state wherein said valve means is OPENED with respect to both of said at least two pumps so as to permit the fluid outputs from both of said at least two pumps to reach said at least one dispensing nozzle,wherein the supply of fluid to the at least two pumps is a common supply source of fluid that is common to the at least two pumps. 2. The fluid dispensing system as set forth in claim 1, wherein: the first valve is interposed between said at least two pumps and said at least one dispensing nozzle for preventing the output flow of both of said at least two pumps from reaching said at least one dispensing nozzle as a result of said first valve being CLOSED, thereby defining said FIRST OFF state of said fluid metering system, and the second valve is interposed between a first one of said at least two pumps and said first valve for permitting the output flow from a second one of said at least two pumps to reach said at least one dispensing nozzle as a result of said first valve being OPENED and yet preventing the output flow of said first one of said at least two pumps from reaching said at least one dispensing nozzle as a result of said second valve being CLOSED, thereby defining said SECOND PARTIAL VOLUME state of said fluid metering system, said THIRD FULL VOLUME state of said fluid metering system being defined when both of said first and second valves are moved to their OPENED positions. 3. The fluid dispensing system as set forth in claim 2, further comprising: a third valve interposed between said second one of said at least two pumps and said first valve for preventing the output flow from said second one of said at least two pumps from reaching said at least one dispensing nozzle as a result of said third valve being CLOSED and yet permitting the output flow of said first one of said at least two pumps to reach said at least one dispensing nozzle as a result of said first and second valves being OPENED, thereby defining a FOURTH PARTIAL VOLUME state of said fluid metering system. 4. The fluid dispensing system as set forth in claim 3, wherein: said first, second, and third valves comprise electrically controlled, solenoid-actuated valves. 5. The fluid dispensing system as set forth in claim 2, wherein: said at least two pumps comprise two pumps respectively disposed within two separate pump assemblies. 6. The fluid dispensing system as set forth in claim 5, wherein: said at least one dispensing nozzle comprises a plurality of dispensing nozzles disposed in a side-by-side array; andeach one of said two separate pump assemblies comprises a plurality of pumps disposed in a side-by-side array such that the outputs from said plurality of pumps can be deposited upon a substrate product, along longitudinally extending lanes, as said substrate product is conveyed past said plurality of dispensing nozzles at predetermined locations and in predetermined volumes depending upon the OPENED and CLOSED positions of said first and second valves. 7. The fluid dispensing system as set forth in claim 5, further comprising: a fluid manifold upon which said two separate pump assemblies are fixedly but removably mounted. 8. The fluid dispensing system as set forth in claim 5, wherein: said two separate pump assemblies comprise rotary gear pump assemblies for outputting metered amounts of the fluid to be dispensed. 9. The fluid dispensing system as set forth in claim 2, wherein: said at least two pumps comprise two pumps respectively disposed within the same pump assembly. 10. The fluid dispensing system as set forth in claim 9, wherein: said at least one dispensing nozzle comprises a plurality of dispensing nozzles disposed in a side-by-side array; andsaid at least two pumps comprises a plurality of pumps disposed in a side-by-side array such that the outputs from said plurality of pumps can be deposited upon a substrate product, along longitudinally extending lanes, as said substrate product is conveyed past said plurality of dispensing nozzles at predetermined locations and in predetermined volumes depending upon the OPENED and CLOSED positions of said first and second valves. 11. The fluid dispensing system as set forth in claim 9, wherein: said two pumps comprise rotary gear pump assemblies for outputting metered amounts of the fluid to be dispensed. 12. A fluid dispensing system, comprising: a common supply source of fluid to be dispensed;an output device having at least one dispensing nozzle;at least two pumps interposed between the common supply source and said at least one dispensing nozzle, the at least two pumps for fluidically pumping fluid from said common supply source of fluid to said at least one dispensing nozzle; andvalve means interposed between said at least two pumps and said at least one dispensing nozzle for permitting said fluid dispensing system to dispense a varied volume of fluid through THREE dispensing states, a FIRST OFF state wherein said valve means is CLOSED with respect to both of said at least two pumps such that fluid outputs from both of said at least two pumps is prevented from reaching said at least one dispensing nozzle, a SECOND PARTIAL VOLUME state wherein said valve means is CLOSED with respect to a first one of said at least two pumps but OPENED with respect to a second one of said at least two pumps so as to permit the fluid output from said second one of said at least two pumps to reach said at least one dispensing nozzle, and a THIRD FULL VOLUME state wherein said valve means is OPENED with respect to both of said at least two pumps so as to permit the fluid outputs from both of said at least two pumps to reach said at least one dispensing nozzle.
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