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公开(公告)号：US20210121895A1
公开(公告)日：2021-04-29
申请号：US16949274
申请日：2020-10-22
Applicant: Graco Minnesota Inc.
Inventor： Vu K. Nguyen , Tom Herbert
Abstract: Apparatus and associated methods related to providing safe electrical control and/or communication between a remote controller located in a safe location and interface system for a machine located in a hazardous location. The control and/or communication is provided via industrial-voltage power lines that traverse a barrier separating the safe location from the hazardous location. Control and/or communication is provided by reactively coupling to industrial power lines, which traverse the barrier, so as to superimpose a control and/or communication signal upon AC operating power provided to the machine. Each of the interface system located at the hazardous location and the remote control module located at a safe location provides such reactive coupling to the industrial-voltage power lines so as to communicate therebetween.
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Patent Agency Ranking
公开(公告)号：US20210172435A1
公开(公告)日：2021-06-10
申请号：US17177744
申请日：2021-02-17
Applicant: Graco Minnesota Inc.
Inventor： Todd A. Anderson , Vu K. Nguyen , Paul F. Boschert
Abstract: A regulator pump provides disconnects an inflow from an outflow, such that a downstream pressure is unaffected by an upstream pressure. The regulator pump receives a fluid through an input valve, while an output valve remains in a closed position. The fluid continues to flow to the regulator pump until the regulator pump is full. With the regulator pump filled with the fluid, the inlet valve shifts to a closed position, thereby isolating the regulator pump chamber from the fluid source. The regulator pump drives the fluid downstream to an applicator with the inlet valve closed. The regulator pump fully isolates the upstream fluid from the downstream fluid such that the upstream pressure has no effect on the downstream pressure.
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公开(公告)号：US11679395B2
公开(公告)日：2023-06-20
申请号：US16949274
申请日：2020-10-22
Applicant: Graco Minnesota Inc.
Inventor： Vu K. Nguyen , Tom Herbert
CPC classification number: B04B7/02 , B04B5/0407 , H04B3/542 , H05K5/02
Abstract: Apparatus and associated methods related to providing safe electrical control and/or communication between a remote controller located in a safe location and interface system for a machine located in a hazardous location. The control and/or communication is provided via industrial-voltage power lines that traverse a barrier separating the safe location from the hazardous location. Control and/or communication is provided by reactively coupling to industrial power lines, which traverse the barrier, so as to superimpose a control and/or communication signal upon AC operating power provided to the machine. Each of the interface system located at the hazardous location and the remote control module located at a safe location provides such reactive coupling to the industrial-voltage power lines so as to communicate therebetween.
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公开(公告)号：US20180119691A1
公开(公告)日：2018-05-03
申请号：US15727188
申请日：2017-10-06
Applicant: Graco Minnesota Inc.
Inventor： Todd A. Anderson , Vu K. Nguyen , Paul F. Boschert
CPC classification number: F04B49/065 , B05B12/088 , G05D7/0113 , G05D16/2066
Abstract: A regulator pump provides disconnects an inflow from an outflow, such that a downstream pressure is unaffected by an upstream pressure. The regulator pump receives a fluid through an input valve, while an output valve remains in a closed position. The fluid continues to flow to the regulator pump until the regulator pump is full. With the regulator pump filled with the fluid, the inlet valve shifts to a closed position, thereby isolating the regulator pump chamber from the fluid source. The regulator pump drives the fluid downstream to an applicator with the inlet valve closed. The regulator pump fully isolates the upstream fluid from the downstream fluid such that the upstream pressure has no effect on the downstream pressure.
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公开(公告)号：US09677550B2
公开(公告)日：2017-06-13
申请号：US14747360
申请日：2015-06-23
Applicant: Graco Minnesota Inc.
Inventor： Mark L. Bauck , Mark T. Weinberger , Vu K. Nguyen , Christopher M. Lange , Wade D. Palashewski , David M. Behrens
CPC classification number: F04B9/123 , F04B9/125 , F04B9/1256 , F04B49/03 , F04B49/10
Abstract: An air operated pump 10 uses a magnet 14 mounted in the valve cup 16 of the air motor 18 and two reed sensors 20 mounted in the valve cover 22 to monitor the speed and position of the valve 16. A solenoid 24 is mounted on the valve cover 22 and can be commanded to extend a plunger 26 into the valve cup 16 to stop valve movement and therefore the pump from running away A magnetoresistive sensor 34 is located in the center of the air motor 18 to precisely monitor the piston 36 position and with air valve sensors 20 provides the input necessary for precise control and diagnostics of the pump 10 and makes it suitable for metering and plural component application.
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公开(公告)号：US20150300335A1
公开(公告)日：2015-10-22
申请号：US14747360
申请日：2015-06-23
Applicant: Graco Minnesota Inc.
Inventor： Mark L. Bauck , Mark T. Weinberger , Vu K. Nguyen , Christopher M. Lange , Wade D. Palashewski , David M. Behrens
CPC classification number: F04B9/123 , F04B9/125 , F04B9/1256 , F04B49/03 , F04B49/10
Abstract: An air operated pump 10 uses a magnet 14 mounted in the valve cup 16 of the air motor 18 and two reed sensors 20 mounted in the valve cover 22 to monitor the speed and position of the valve 16. A solenoid 24 is mounted on the valve cover 22 and can be commanded to extend a plunger 26 into the valve cup 16 to stop valve movement and therefore the pump from running away A magnetoresistive sensor 34 is located in the center of the air motor 18 to precisely monitor the piston 36 position and with air valve sensors 20 provides the input necessary for precise control and diagnostics of the pump 10 and makes it suitable for metering and plural component application.
Abstract translation: 气动泵10使用安装在气动马达18的阀杯16中的磁体14和安装在阀盖22中的两个簧片传感器20，以监测阀16的速度和位置。螺线管24安装在阀 盖22，并且可以命令将柱塞26延伸到阀杯16中以阻止阀运动，因此泵不运行。磁阻传感器34位于气动马达18的中心，以精确地监测活塞36的位置并且与 空气阀传感器20提供了对泵10的精确控制和诊断所必需的输入，并且使其适合于计量和多个部件应用。
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