Patents by Inventor Mariusz J. Luczak
Mariusz J. Luczak has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11441551Abstract: 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.Type: GrantFiled: April 27, 2018Date of Patent: September 13, 2022Assignee: Graco Minnesota Inc.Inventors: Charles W. Dawson, Mariusz J. Luczak, Barry W. Mattson, Douglas S. Ryder, Bret A. Deneson, Christopher A. Lins
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Patent number: 11371492Abstract: 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.Type: GrantFiled: August 14, 2019Date of Patent: June 28, 2022Assignee: Graco Minnesota Inc.Inventor: Mariusz J. Luczak
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Patent number: 11162482Abstract: 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.Type: GrantFiled: April 27, 2018Date of Patent: November 2, 2021Assignee: Graco Minnesota Inc.Inventors: Charles W. Dawson, Mariusz J. Luczak, Barry W. Mattson, Douglas S. Ryder, Bret A. Deneson, Christopher A. Lins
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Patent number: 11125226Abstract: 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.Type: GrantFiled: June 21, 2017Date of Patent: September 21, 2021Assignee: Graco Minnesota Inc.Inventors: Bradley H. Hines, Jeromy D. Horning, Mariusz J. Luczak, William M. Blenkush, Mark D. Shultz
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Patent number: 10705554Abstract: 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.Type: GrantFiled: April 27, 2018Date of Patent: July 7, 2020Assignee: Graco Minnesota Inc.Inventors: Charles W. Dawson, Mariusz J. Luczak, Barry W. Mattson, Douglas S. Ryder, Bret A. Deneson, Christopher A. Lins
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Publication number: 20190368476Abstract: 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.Type: ApplicationFiled: August 14, 2019Publication date: December 5, 2019Inventor: Mariusz J. Luczak
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Patent number: 10422325Abstract: 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.Type: GrantFiled: September 14, 2017Date of Patent: September 24, 2019Assignee: Grace Minnesota Inc.Inventor: Mariusz J. Luczak
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Patent number: 10315787Abstract: 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.Type: GrantFiled: October 9, 2017Date of Patent: June 11, 2019Assignee: Graco Minnesota Inc.Inventor: Mariusz J. Luczak
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Publication number: 20180313342Abstract: 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.Type: ApplicationFiled: April 27, 2018Publication date: November 1, 2018Inventors: Charles W. Dawson, Mariusz J. Luczak, Barry W. Mattson, Douglas S. Ryder, Bret A. Deneson, Christopher A. Lins
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Publication number: 20180313350Abstract: 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.Type: ApplicationFiled: April 27, 2018Publication date: November 1, 2018Inventors: Charles W. Dawson, Mariusz J. Luczak, Barry W. Mattson, Douglas S. Ryder, Bret A. Deneson, Christopher A. Lins
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Publication number: 20180313344Abstract: 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.Type: ApplicationFiled: April 27, 2018Publication date: November 1, 2018Inventors: Charles W. Dawson, Mariusz J. Luczak, Barry W. Mattson, Douglas S. Ryder, Bret A. Deneson, Christopher A. Lins
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Publication number: 20180282000Abstract: 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.Type: ApplicationFiled: October 9, 2017Publication date: October 4, 2018Inventor: Mariusz J. Luczak
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Publication number: 20180071761Abstract: 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.Type: ApplicationFiled: September 14, 2017Publication date: March 15, 2018Inventor: Mariusz J. Luczak
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Patent number: 9808817Abstract: A fluid sprayer includes a pump motor, a piston, a pump housing, and an outer housing. The piston is reciprocatable by the pump motor. The pump housing comprises a pump chamber housing disposed to receive the piston, and a plurality of alignment pins extending laterally away from the pump chamber housing. The outer housing surround and anchors the pump motor, and has a plurality of internal lateral bores disposed to slideably receive and retain the alignment pins, such that the pump housing is free to self-align with the piston.Type: GrantFiled: May 1, 2015Date of Patent: November 7, 2017Assignee: Graco Minnesota Inc.Inventors: Mariusz J. Luczak, Harold D. Johnson
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Patent number: 9796492Abstract: 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.Type: GrantFiled: March 12, 2015Date of Patent: October 24, 2017Assignee: Graco Minnesota Inc.Inventor: Mariusz J. Luczak
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Publication number: 20170284550Abstract: 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.Type: ApplicationFiled: June 21, 2017Publication date: October 5, 2017Inventors: Bradley H. Hines, Jeromy D. Horning, Mariusz J. Luczak, William M. Blenkush, Mark D. Shultz
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Patent number: 9732869Abstract: 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.Type: GrantFiled: December 14, 2012Date of Patent: August 15, 2017Assignee: Graco Minnesota Inc.Inventors: Bradley H. Hines, Jeromy D. Horning, Mariusz J. Luczak, William M. Blenkush, Mark D. Shultz
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Publication number: 20160263600Abstract: 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.Type: ApplicationFiled: March 12, 2015Publication date: September 15, 2016Inventor: Mariusz J. Luczak
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Publication number: 20150314312Abstract: A fluid sprayer includes a pump motor, a piston, a pump housing, and an outer housing. The piston is reciprocatable by the pump motor. The pump housing comprises a pump chamber housing disposed to receive the piston, and a plurality of alignment pins extending laterally away from the pump chamber housing. The outer housing surround and anchors the pump motor, and has a plurality of internal lateral bores disposed to slideably receive and retain the alignment pins, such that the pump housing is free to self-align with the piston.Type: ApplicationFiled: May 1, 2015Publication date: November 5, 2015Inventors: Mariusz J. Luczak, Harold D. Johnson
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Publication number: 20150217312Abstract: An airless fluid dispensing device comprises a reciprocating fluid pump, a drive element, a spray tip and an accumulator. The reciprocating fluid pump directly pressurizes a fluid. The drive element supplies power to the pump. The spray tip assembly is configured to receive pressurized fluid from the pump. The accumulator is located to be simultaneously pressurized by the reciprocating fluid pump as the spray tip assembly and configured to provide pressurized fluid to the spray tip assembly when the reciprocating fluid pump is at a changeover position.Type: ApplicationFiled: September 12, 2013Publication date: August 6, 2015Inventors: Bradley H. Hines, Mariusz J. Luczak