Patents by Inventor David J. Thompson
David J. Thompson 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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Publication number: 20210162439Abstract: A fluid dispensing device includes a housing and a reciprocating piston fluid pump coupled to the housing. The reciprocating piston fluid pump includes a piston disposed within a cylinder. The piston is configured to pressurize at least one pumping chamber. A motor is coupled to the housing and connected to the reciprocating piston fluid pump to actuate the piston. A wobble assembly connects the motor to the piston of the reciprocating piston fluid pump. A spray tip connected to an outlet of the at least one pumping chamber.Type: ApplicationFiled: February 5, 2021Publication date: June 3, 2021Inventors: David J. Thompson, Jerry D. Horning, William M. Blenkush, Eric J. Finstad, Bradley H. Hines, Marius J. Luczak, Diane Olson, Philip K. Snider, Harold D. Johnson, Jimmy Wing Sum Tam
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Patent number: 10919060Abstract: A fluid dispensing device includes a housing and a reciprocating piston fluid pump coupled to the housing. The reciprocating piston fluid pump includes a piston disposed within a cylinder. The piston is configured to pressurize at least one pumping chamber. A motor is coupled to the housing and connected to the reciprocating piston fluid pump to actuate the piston. A wobble assembly connects the motor to the piston of the reciprocating piston fluid pump. A spray tip connected to an outlet of the at least one pumping chamber.Type: GrantFiled: February 28, 2018Date of Patent: February 16, 2021Assignee: Graco Minnesota Inc.Inventors: David J. Thompson, Jerry D. Horning, William M. Blenkush, Eric J. Finstad, Bradley H. Hines, Marius J. Luczak, Diane Olson, Philip K. Snider, Harold D. Johnson, Jimmy Wing Sum Tam
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Publication number: 20200368775Abstract: A spray roller system for application of architectural paints coating, includes an extension tube, a spray head mounted on a distal end of the extension tube, and the in-line valve with a trigger mounted on a proximal end of the extension tube, and a roller handle removable mounted on the extension tube adjacent the spray head. The spray roller system can spray and back roll a coating on a down stroke and roll on each up stroke. When the roller handle is removed from the extension tube, it can be used to hand roll sensitive wall areas. With the roller handle removed, extension tube, spray head, and in-line valve can be used as a spray extension to apply coatings in hard to reach areas.Type: ApplicationFiled: August 14, 2020Publication date: November 26, 2020Inventors: Daniel R. Johnson, Dale C. Pemberton, David J. Thompson, Dale D. Johnson
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Patent number: 10751749Abstract: A spray roller system for application of architectural paints coating, includes an extension tube, a spray head mounted on a distal end of the extension tube, and the in-line valve with a trigger mounted on a proximal end of the extension tube, and a roller handle removable mounted on the extension tube adjacent the spray head. The spray roller system can spray and back roll a coating on a down stroke and roll on each up stroke. When the roller handle is removed from the extension tube, it can be used to hand roll sensitive wall areas. With the roller handle removed, extension tube, spray head, and in-line valve can be used as a spray extension to apply coatings in hard to reach areas.Type: GrantFiled: February 4, 2019Date of Patent: August 25, 2020Assignee: Graco Minnesota Inc.Inventors: Daniel R. Johnson, Dale C. Pemberton, David J. Thompson, Dale D. Johnson
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Publication number: 20200102951Abstract: A pump rod has a head extending from a neck, and the head is received within a drive slot of a drive link. The head includes a projection, and has an area smaller than an area of the head. The projection contacts an inner surface of the drive slot. The drive link may include a projection aligned with a centerline of the drive link. The drive link projection contacts a head of the pump rod. The projections provide a reduced contact area between the pump rod and the drive link, thereby reducing any side-loading on the pump rod and increasing a lifespan of the wear parts.Type: ApplicationFiled: November 26, 2019Publication date: April 2, 2020Inventors: David J. Thompson, Christopher A. Lins, Andrew J. Kopel, Glen W. Davidson, Chad R. Taszarek, Chris W. Sydow, William M. Blenkush, Steve J. Wrobel
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Publication number: 20190374966Abstract: An automated mobile sprayer (AMS) includes a mobile base, an applicator arm supported by the mobile base, and a nozzle extending from the applicator arm. The nozzle receives fluid from a fluid supply and generates an atomized fluid spray for application to a surface. The applicator arm moves vertically relative to the mobile base and the surface to cause the nozzle to generate a vertical fluid stripe. The mobile base moves laterally relative to the surface to cause the nozzle to generate a horizontal fluid stripe.Type: ApplicationFiled: January 17, 2018Publication date: December 12, 2019Applicant: Graco Minnesota Inc.Inventors: David J. THOMPSON, Jon M. KNUTSON, Dale D. JOHNSON
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Patent number: 10502206Abstract: A pump rod has a head extending from a neck, and the head is received within a drive slot of a drive link. The head includes a projection, and has an area smaller than an area of the head. The projection contacts an inner surface of the drive slot. The drive link may include a projection aligned with a centerline of the drive link. The drive link projection contacts a head of the pump rod. The projections provide a reduced contact area between the pump rod and the drive link, thereby reducing any side-loading on the pump rod and increasing a lifespan of the wear parts.Type: GrantFiled: December 30, 2015Date of Patent: December 10, 2019Assignee: Graco Minnesota Inc.Inventors: David J. Thompson, Christopher A. Lins, Andrew J. Kopel, Glen W. Davidson, Chad R. Taszarek, Chris W. Sydow, William M. Blenkush, Steve J. Wrobel
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Publication number: 20190366375Abstract: An unmanned aerial vehicle (UAV) includes a sprayer configured to generate a pressurized fluid flow and a nozzle configured to receive the pressurized fluid from the sprayer and to generate a spray fan to apply the fluid to a surface. The UAV includes sensors and a control unit to control both flight of the UAV and spraying by the sprayer. The fluid can be stored onboard the UAV in a reservoir or can be remotely stored and pumped to the UAV. The UAV control unit can be preloaded with a spray plan and a flight plan, or the UAV can be controlled by a user.Type: ApplicationFiled: January 17, 2018Publication date: December 5, 2019Inventors: David J. Thompson, Dale D. Johnson
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Publication number: 20190168253Abstract: A spray roller system for application of architectural paints coating, includes an extension tube, a spray head mounted on a distal end of the extension tube, and the in-line valve with a trigger mounted on a proximal end of the extension tube, and a roller handle removable mounted on the extension tube adjacent the spray head. The spray roller system can spray and back roll a coating on a down stroke and roll on each up stroke. When the roller handle is removed from the extension tube, it can be used to hand roll sensitive wall areas. With the roller handle removed, extension tube, spray head, and in-line valve can be used as a spray extension to apply coatings in hard to reach areas.Type: ApplicationFiled: February 4, 2019Publication date: June 6, 2019Inventors: Daniel R. Johnson, Dale C. Pemberton, David J. Thompson, Dale D. Johnson
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Patent number: 10195639Abstract: A spray roller system for application of architectural paints coating, includes an extension tube, a spray head mounted on a distal end of the extension tube, and the in-line valve with a trigger mounted on a proximal end of the extension tube, and a roller handle removable mounted on the extension tube adjacent the spray head. The spray roller system can spray and back roll a coating on a down stroke and roll on each up stroke. When the roller handle is removed from the extension tube, it can be used to hand roll sensitive wall areas. With the roller handle removed, extension tube, spray head, and in-line valve can be used as a spray extension to apply coatings in hard to reach areas.Type: GrantFiled: January 5, 2015Date of Patent: February 5, 2019Assignee: Graco Minnesota Inc.Inventors: Daniel R. Johnson, Dale C. Pemberton, David J. Thompson, Dale D. Johnson
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Patent number: 10094375Abstract: A clamp is secured to a displacement pump, and the clamp includes an axial ring and a tightening ring. The axial ring is mounted above the tightening ring, and the axial ring is configured to align the displacement pump during mounting and to limit the stoke of a pump rod within the displacement pump. The tightening ring may be tightened such that the axial ring and the tightening ring exert a clamping force on a drive housing, which secures the displacement pump to the drive housing. The tightening ring may receive a projection extending from the drive housing to provide structural support to the drive housing.Type: GrantFiled: December 30, 2015Date of Patent: October 9, 2018Assignee: Graco Minnesota Inc.Inventors: Glen W. Davidson, Steve J. Wrobel, Chad R. Taszarek, William M. Blenkush, Chris W. Sydow, Andrew J. Kopel, David J. Thompson, Christopher A. Lins
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Patent number: 10077771Abstract: A displacement pump includes a pump rod having a load concentrating feature extending from the head of the pump rod. The head of the pump rod is received within a slot of a drive link, and the drive link is configured to contact the load concentrating feature. Having the drive link contact the smaller diameter load concentrating feature reduces the misalignment between the driving force and the center of the pump rod and thereby reduces side-loading experienced by the pump rod. The displacement pump is configured to be used in a fluid dispensing system.Type: GrantFiled: December 30, 2015Date of Patent: September 18, 2018Assignee: Graco Minnesota, Inc.Inventors: Glen W. Davidson, Steve J. Wrobel, Chad R. Taszarek, William M. Blenkush, Chris W. Sydow, Christopher A. Lins, Andrew J. Kopel, David J. Thompson
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Publication number: 20180214897Abstract: A fluid dispensing device includes a housing and a reciprocating piston fluid pump coupled to the housing. The reciprocating piston fluid pump includes a piston disposed within a cylinder. The piston is configured to pressurize at least one pumping chamber. A motor is coupled to the housing and connected to the reciprocating piston fluid pump to actuate the piston. A wobble assembly connects the motor to the piston of the reciprocating piston fluid pump. A spray tip connected to an outlet of the at least one pumping chamber.Type: ApplicationFiled: February 28, 2018Publication date: August 2, 2018Inventors: David J. Thompson, Jerry D. Horning, William M. Blenkush, Eric J. Finstad, Bradley H. Hines, Marius J. Luczak, Diane Olson, Philip K. Snider, Harold D. Johnson, Jimmy Wing Sum Tam
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Patent number: 9914141Abstract: A fluid dispensing device comprises a housing body, a fluid container, a reciprocating piston fluid pump, a primary drive element and a spray tip. The housing body is configured to be carried and supported by an operator of the hand held airless fluid dispensing device during operation. The fluid container is supported by the housing body. The reciprocating piston fluid pump is coupled to the housing body and comprises at least two pumping chambers configured to be actuated out of phase by at least one piston. The primary drive element is coupled to the housing body and connected to the reciprocating piston fluid pump to actuate the at least one piston. The spray tip is connected to an outlet of at least one of the pumping chambers.Type: GrantFiled: February 24, 2017Date of Patent: March 13, 2018Assignee: Graco Minnesota, Inc.Inventors: David J. Thompson, Jerry D. Horning, William M. Blenkush, Eric J. Finstad, Bradley H. Hines, Marius J. Luczak, Diane Olson, Philip K. Snider, Harold D. Johnson, Jimmy Wing Sum Tam
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Publication number: 20170165692Abstract: A fluid dispensing device comprises a housing body, a fluid container, a reciprocating piston fluid pump, a primary drive element and a spray tip. The housing body is configured to be carried and supported by an operator of the hand held airless fluid dispensing device during operation. The fluid container is supported by the housing body. The reciprocating piston fluid pump is coupled to the housing body and comprises at least two pumping chambers configured to be actuated out of phase by at least one piston. The primary drive element is coupled to the housing body and connected to the reciprocating piston fluid pump to actuate the at least one piston. The spray tip is connected to an outlet of at least one of the pumping chambers.Type: ApplicationFiled: February 24, 2017Publication date: June 15, 2017Inventors: David J. Thompson, Jerry D. Horning, William M. Blenkush, Eric J. Finstad, Bradley H. Hines, Marius J. Luczak, Diane Olson, Philip K. Snider, Harold D. Johnson, Jimmy Wing Sum Tam
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Patent number: 9604234Abstract: A portable airless sprayer comprises a housing, a motor, a pump, a spray tip and a trigger. The motor is mounted to the housing. The pump is mounted to the housing and is driven by the motor. The spray tip assembly receives pressurized fluid from the pump. The trigger is configured to actuate the spray tip assembly and activate the motor. A method of operating a portable airless sprayer comprises moving a lever over a stroke, displacing a valve pin, and activating a motor. The valve pin is displaced with the lever to actuate a spray valve. The motor is activated with the lever to drive a pump that provides fluid to the spray valve.Type: GrantFiled: March 15, 2013Date of Patent: March 28, 2017Assignee: Graco Minnesota Inc.Inventors: David J. Thompson, Jerry D. Horning, William M. Blenkush, Eric J. Finstad, Bradley H. Hines, Marius J. Luczak, Diane Olson, Philip K. Snider, Harold D. Johnson, Jimmy Wing Sum Tam
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Patent number: 9604235Abstract: A fluid dispensing device comprises a housing body, a fluid container, a reciprocating piston fluid pump, a primary drive element and a spray tip. The housing body is configured to be carried and supported by an operator of the hand held airless fluid dispensing device during operation. The fluid container is supported by the housing body. The reciprocating piston fluid pump is coupled to the housing body and comprises at least two pumping chambers configured to be actuated out of phase by at least one piston. The primary drive element is coupled to the housing body and connected to the reciprocating piston fluid pump to actuate the at least one piston. The spray tip is connected to an outlet of at least one of the pumping chambers.Type: GrantFiled: October 10, 2013Date of Patent: March 28, 2017Assignee: Graco Minnesota Inc.Inventors: David J. Thompson, Jerry D. Horning, William M. Blenkush, Eric J. Finstad, Bradley H. Hines, Marius J. Luczak, Diane Olson, Philip K. Snider, Harold D. Johnson, Jimmy Wing Sum Tam
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Patent number: 9545643Abstract: A sprayer attachment for a hand-supported power tool comprises a motion converting mechanism, a pumping mechanism, a spray assembly and a housing. The motion converting mechanism has an input shaft. The pumping mechanism is driven by the motion converting mechanism. The spray assembly is fluidly coupled to the pumping mechanism. The housing assembly couples the motion converting mechanism, the pumping mechanism and the spray assembly. The sprayer attachment may further comprise an anti-rotation bracket extending from the housing. The sprayer attachment may further be coupled to a handheld power tool, such as a cordless drill or a reciprocating saw, with the anti-rotation bracket.Type: GrantFiled: March 15, 2013Date of Patent: January 17, 2017Assignee: Graco Minnesota Inc.Inventors: David J. Thompson, Bradley H. Hines, Jerry D. Horning, William M. Blenkush, Eric J. Finstad, Marius J. Luczak, Diane Olson, Harold D. Johnson, Jimmy Wing Sum Tam, Philip K. Snider
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Publication number: 20160325306Abstract: A spray roller system for application of architectural paints coating, includes an extension tube, a spray head mounted on a distal end of the extension tube, and the in-line valve with a trigger mounted on a proximal end of the extension tube, and a roller handle removable mounted on the extension tube adjacent the spray head. The spray roller system can spray and back roll a coating on a down stroke and roll on each up stroke. When the roller handle is removed from the extension tube, it can be used to hand roll sensitive wall areas. With the roller handle removed, extension tube, spray head, and in-line valve can be used as a spray extension to apply coatings in hard to reach areas.Type: ApplicationFiled: January 5, 2015Publication date: November 10, 2016Applicant: GRACO MINNESOTA INC.Inventors: Daniel R. Johnson, Dale C. Pemberton, David J. Thompson, Dale D. Johnson
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Publication number: 20160186788Abstract: A clamp is secured to a displacement pump, and the clamp includes an axial ring and a tightening ring. The axial ring is mounted above the tightening ring, and the axial ring is configured to align the displacement pump during mounting and to limit the stoke of a pump rod within the displacement pump. The tightening ring may be tightened such that the axial ring and the tightening ring exert a clamping force on a drive housing, which secures the displacement pump to the drive housing. The tightening ring may receive a projection extending from the drive housing to provide structural support to the drive housing.Type: ApplicationFiled: December 30, 2015Publication date: June 30, 2016Inventors: Glen W. Davidson, Steve J. Wrobel, Chad R. Taszarek, William M. Blenkush, Chris W. Sydow, Andrew J. Kopel, Christopher A. Lins, David J. Thompson