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公开(公告)号:US10705554B2
公开(公告)日:2020-07-07
申请号:US15965028
申请日:2018-04-27
Applicant: Graco Minnesota Inc.
Inventor: Charles W. Dawson , Mariusz J. Luczak , Barry W. Mattson , Douglas S. Ryder , Bret A. Deneson , Christopher A. Lins
IPC: F04B9/02 , G05G5/00 , G05G1/04 , F15B21/08 , F04B35/06 , F04B41/02 , F04B17/03 , F04B23/02 , F04B23/06 , F04B11/00 , F04B17/06 , F04B49/22 , F04B53/10
Abstract: A portable hydraulic power unit includes a fluid tank supported on a frame, a first pump configured to draw hydraulic fluid from the tank and a second pump configured to draw hydraulic fluid from the tank. The portable hydraulic power unit further includes a two-way valve disposed on a high-flow line extending from an output of the second pump, the two-way valve movable between an open state and a closed state. The two-way valve is electrically-actuated and configured to shift to the open state based on a hydraulic fluid pressure in a combined flow line downstream of the first pump and the second pump exceeding a threshold pressure level. The two-way valve directs the output of the second pump back to the fluid tank when the two-way valve is in the open state.
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公开(公告)号:US10422325B2
公开(公告)日:2019-09-24
申请号:US15704649
申请日:2017-09-14
Applicant: Graco Minnesota Inc.
Inventor: Mariusz J. Luczak
IPC: F04B7/04 , F04B49/03 , F04B1/18 , F04B1/14 , F04B53/10 , F04B53/06 , B05B9/04 , B05B9/08 , F04B1/02 , F04B23/02 , F16K15/04
Abstract: A pump draws fluid from a reservoir and drives the fluid downstream to a spray tip where the fluid is applied to a surface. A piston is driven in a reciprocating manner to pump the fluid. A check valve is disposed downstream of the piston to regulate a flow of the fluid downstream from the piston. The pump is initially dry and is primed with fluid prior to operation. To facilitate priming, the piston is dimensioned to impact the ball and unseat a valve member of the check valve during a priming stroke, thereby ejecting any air from the pump through the check valve. With the air ejected from the pump, a vacuum is formed during a suction stroke of the piston, which draws fluid downstream from the reservoir to prime the pump.
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公开(公告)号:US10315787B2
公开(公告)日:2019-06-11
申请号:US15727973
申请日:2017-10-09
Applicant: Graco Minnesota Inc.
Inventor: Mariusz J. Luczak
Abstract: A manual check valve for use when priming a fluid supply for a spray gun includes an orifice that opens from the fluid supply into a storage chamber, the storage chamber captures any fluid that is expelled from the fluid supply during priming, and the storage chamber is sealed with a closure. Sealing the storage chamber traps any expelled fluid in the storage chamber and prevents any of the expelled fluid from leaking onto another surface, which keeps the priming operation clean.
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公开(公告)号:US20180282000A1
公开(公告)日:2018-10-04
申请号:US15727973
申请日:2017-10-09
Applicant: Graco Minnesota Inc.
Inventor: Mariusz J. Luczak
CPC classification number: B65B7/2821 , B05B3/006 , B05B7/2481 , B05B9/01 , B05B9/0861 , B05B15/14 , B05B15/628
Abstract: A manual check valve for use when priming a fluid supply for a spray gun includes an orifice that opens from the fluid supply into a storage chamber, the storage chamber captures any fluid that is expelled from the fluid supply during priming, and the storage chamber is sealed with a closure. Sealing the storage chamber traps any expelled fluid in the storage chamber and prevents any of the expelled fluid from leaking onto another surface, which keeps the priming operation clean.
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公开(公告)号:US20180071761A1
公开(公告)日:2018-03-15
申请号:US15704649
申请日:2017-09-14
Applicant: Graco Minnesota Inc.
Inventor: Mariusz J. Luczak
Abstract: A pump draws fluid from a reservoir and drives the fluid downstream to a spray tip where the fluid is applied to a surface. A piston is driven in a reciprocating manner to pump the fluid. A check valve is disposed downstream of the piston to regulate a flow of the fluid downstream from the piston. The pump is initially dry and is primed with fluid prior to operation. To facilitate priming, the piston is dimensioned to impact the ball and unseat a valve member of the check valve during a priming stroke, thereby ejecting any air from the pump through the check valve. With the air ejected from the pump, a vacuum is formed during a suction stroke of the piston, which draws fluid downstream from the reservoir to prime the pump.
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公开(公告)号:US20140369874A1
公开(公告)日:2014-12-18
申请号:US14370177
申请日:2012-12-14
Applicant: Bradley H. HINES , Jeromy D. HORNING , Mariusz J. LUCZAK , William M. BLANKUSH , Mark D. SHULTZ , Graco Minnesota Inc.
Inventor: Bradley H. Hines , Jeromy D. Horning , Mariusz J. Luczak , William M. Blenkush , Mark D. Shultz
CPC classification number: F16K17/06 , F04B7/02 , F04B49/22 , F04C15/064 , F16K15/025 , F16K15/03 , F16K15/044 , Y10T137/7837 , Y10T137/7878 , Y10T137/7906
Abstract: A check valve comprises a housing, a fluid passage, a seat, a valve member and a stop. The fluid passage extends through the housing. The seat is disposed in the fluid passage. The valve member is positioned in the passage to engage the seat. The stop extends through the housing to engage the valve member. The stop is accessible from outside the housing to adjust a distance the valve member can travel from the seat. In one embodiment, the stop includes a variable stop feature, such as an offset pin or a cam. In another embodiment, the stop includes a pump control valve. In yet another embodiment, the housing includes markings to indicate a position of the stop. The valve member comprises a ball or a poppet in different embodiments.
Abstract translation: 止回阀包括壳体,流体通道,座椅,阀构件和止挡件。 流体通道延伸穿过壳体。 座椅设置在流体通道中。 阀构件定位在通道中以接合座椅。 止动件延伸穿过壳体以接合阀构件。 该挡块可从壳体的外部进入,以调节阀构件能够从座椅移动的距离。 在一个实施例中,止动件包括可变止动特征,例如偏置销或凸轮。 在另一个实施例中,止动件包括泵控制阀。 在另一个实施例中,壳体包括用于指示止动件的位置的标记。 在不同的实施例中,阀构件包括球或提升阀。
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公开(公告)号:US11125226B2
公开(公告)日:2021-09-21
申请号:US15629025
申请日:2017-06-21
Applicant: Graco Minnesota Inc.
Inventor: Bradley H. Hines , Jeromy D. Horning , Mariusz J. Luczak , William M. Blenkush , Mark D. Shultz
Abstract: A check valve comprises a housing, a fluid passage, a seat, a valve member and a stop. The fluid passage extends through the housing. The seat is disposed in the fluid passage. The valve member is positioned in the passage to engage the seat. The stop extends through the housing to engage the valve member. The stop is accessible from outside the housing to adjust a distance the valve member can travel from the seat. In one embodiment, the stop includes a variable stop feature, such as an offset pin or a cam. In another embodiment, the stop includes a pump control valve. In yet another embodiment, the housing includes markings to indicate a position of the stop. The valve member comprises a ball or a poppet in different embodiments.
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公开(公告)号:US20180313350A1
公开(公告)日:2018-11-01
申请号:US15965028
申请日:2018-04-27
Applicant: Graco Minnesota Inc.
Inventor: Charles W. Dawson , Mariusz J. Luczak , Barry W. Mattson , Douglas S. Ryder , Bret A. Deneson , Christopher A. Lins
Abstract: A portable hydraulic power unit includes a fluid tank supported on a frame, a first pump configured to draw hydraulic fluid from the tank and a second pump configured to draw hydraulic fluid from the tank. The portable hydraulic power unit further includes a two-way valve disposed on a high-flow line extending from an output of the second pump, the two-way valve movable between an open state and a closed state. The two-way valve is electrically-actuated and configured to shift to the open state based on a hydraulic fluid pressure in a combined flow line downstream of the first pump and the second pump exceeding a threshold pressure level. The two-way valve directs the output of the second pump back to the fluid tank when the two-way valve is in the open state.
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公开(公告)号:US20180313344A1
公开(公告)日:2018-11-01
申请号:US15965005
申请日:2018-04-27
Applicant: Graco Minnesota Inc.
Inventor: Charles W. Dawson , Mariusz J. Luczak , Barry W. Mattson , Douglas S. Ryder , Bret A. Deneson , Christopher A. Lins
Abstract: A portable hydraulic power unit includes a frame, a fluid tank supported by the frame, and a manifold supported by the frame. The fluid tank is configured to store a supply of hydraulic fluid for powering a hydraulically-driven tool. A reciprocating pump is mounted on the exterior of the fluid tank and on the exterior of the manifold. The reciprocating pump is secured to the fluid tank and the manifold with fasteners extending through a cylinder body of the reciprocating pump.
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公开(公告)号:US20180313342A1
公开(公告)日:2018-11-01
申请号:US15965027
申请日:2018-04-27
Applicant: Graco Minnesota Inc.
Inventor: Charles W. Dawson , Mariusz J. Luczak , Barry W. Mattson , Douglas S. Ryder , Bret A. Deneson , Christopher A. Lins
Abstract: A portable hydraulic power unit includes a frame, a fluid tank supported by the frame, and a manifold supported by the frame. The fluid tank is configured to store a supply of hydraulic fluid for powering a hydraulically-driven tool. A reciprocating pump is mounted on the exterior of the fluid tank and on the exterior of the manifold. The reciprocating pump is secured to the fluid tank and the manifold with fasteners extending through a cylinder body of the reciprocating pump.
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