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公开(公告)号：US10550552B2
公开(公告)日：2020-02-04
申请号：US15306917
申请日：2015-04-28
Applicant: Graco Minnesota Inc.
Inventor： Peter N. Dufault , Todd A. Anderson
Abstract: A method for controlling a system pressure within a closed system includes sending a signal to a pressure control valve corresponding to a pressure set point and actuating the pressure control valve to vary a pilot pressure of a control fluid contained within a pressure control line that is fluidly connected to a pressure regulator. A diaphragm of the pressure regulator is disposed between the pressure control line and a system line and acts on a fluid with the system line to modify the system pressure.
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公开(公告)号：US20170043359A1
公开(公告)日：2017-02-16
申请号：US15306917
申请日：2015-04-28
Applicant: Graco Minnesota Inc.
Inventor： Peter N. Dufault , Todd A. Anderson
Abstract: A method for controlling a system pressure within a closed system includes sending a signal to a pressure control valve corresponding to a pressure set point and actuating the pressure control valve to vary a pilot pressure of a control fluid contained within a pressure control line that is fluidly connected to a pressure regulator. A diaphragm of the pressure regulator is disposed between the pressure control line and a system line and acts on a fluid with the system line to modify the system pressure.
Abstract translation: 一种用于控制闭合系统内的系统压力的方法包括将信号发送到对应于压力设定点的压力控制阀，并致动压力控制阀，以改变容纳在流体上的压力控制线内的控制流体的先导压力 连接到压力调节器。 压力调节器的隔膜设置在压力控制线和系统管线之间，并且通过系统管线作用于流体以改变系统压力。
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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：US10245608B2
公开(公告)日：2019-04-02
申请号：US15306921
申请日：2015-04-28
Applicant: Graco Minnesota Inc.
Inventor： Peter N. Dufault , Todd A. Anderson
Abstract: A method of controlling a flow rate includes selecting an operating condition defined by an operating flow rate and an operating pressure, comparing the operating flow rate to a threshold flow rate, and executing an adaptive calibration routing if the operating flow rate is greater than or equal to the threshold flow rate. The adaptive calibration routine includes measuring the operating pressure, measuring a first flow rate through a first meter, and modifying a pressure-flow table based on the operating pressure and the first flow rate.
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Patent Agency Ranking
公开(公告)号：US20170043366A1
公开(公告)日：2017-02-16
申请号：US15306921
申请日：2015-04-28
Applicant: Graco Minnesota Inc.
Inventor： Peter N. Dufault , Todd A. Anderson
CPC classification number: B05B12/1427 , B05B9/04 , B05B9/0406 , B05B12/085 , B05B12/088 , B05B12/1418 , G05D7/0623 , G05D11/132 , Y10T137/2499 , Y10T137/7761
Abstract: A method of controlling a flow rate includes selecting an operating condition defined by an operating flow rate and an operating pressure, comparing the operating flow rate to a threshold flow rate, and executing an adaptive calibration routing if the operating flow rate is greater than or equal to the threshold flow rate. The adaptive calibration routine includes measuring the operating pressure, measuring a first flow rate through a first meter, and modifying a pressure-flow table based on the operating pressure and the first flow rate.
Abstract translation: 一种控制流量的方法包括选择由操作流量和操作压力定义的操作条件，将操作流量与阈值流量进行比较，以及如果操作流量大于或等于则执行自适应校准路线 到阈值流量。 自适应校准程序包括测量操作压力，测量通过第一仪表的第一流量，以及基于操作压力和第一流量修改压力表。
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公开(公告)号：US11492786B2
公开(公告)日：2022-11-08
申请号：US16721394
申请日：2019-12-19
Applicant: Graco Minnesota Inc.
Inventor： Peter N. Dufault , Todd A. Anderson
Abstract: A method for controlling a system pressure within a closed system includes sending a signal to a pressure control valve corresponding to a pressure set point and actuating the pressure control valve to vary a pilot pressure of a control fluid contained within a pressure control line that is fluidly connected to a pressure regulator. A diaphragm of the pressure regulator is disposed between the pressure control line and a system line and acts on a fluid with the system line to modify the system pressure.
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公开(公告)号：US20220241804A1
公开(公告)日：2022-08-04
申请号：US17594757
申请日：2020-05-01
Applicant: Graco Minnesota Inc.
Inventor： Todd A. Anderson , Jacob K. Krech
Abstract: An electrostatic spray system (10) includes a supply module (14) configured to store a supply of charged liquid for spraying by an electrostatic sprayer (26). A feed module (12) is connected to the supply module to fill the supply tank (44) of the supply module as needed during spraying to provide a continuous supply of liquid for the electrostatic sprayer. The feed module is controlled such that the feed module is electrically isolated from a main reservoir (18) connected to earth ground potential when the feed module is providing liquid to the supply module, and the feed module is electrically isolated from the supply module when the feed module is receiving liquid from the main reservoir. The feed module transfers the liquid from the main reservoir to the supply module without electrically connecting the supply module to the main reservoir (18).
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公开(公告)号：US10513839B2
公开(公告)日：2019-12-24
申请号：US15306917
申请日：2015-04-28
Applicant: Graco Minnesota Inc.
Inventor： Peter N. Dufault , Todd A. Anderson
Abstract: A method for controlling a system pressure within a closed system includes sending a signal to a pressure control valve corresponding to a pressure set point and actuating the pressure control valve to vary a pilot pressure of a control fluid contained within a pressure control line that is fluidly connected to a pressure regulator. A diaphragm of the pressure regulator is disposed between the pressure control line and a system line and acts on a fluid with the system line to modify the system pressure.
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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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