Patents by Inventor Harold D. Johnson
Harold D. Johnson 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).
-
Patent number: 11779945Abstract: 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. The piston is configured to pressurize at least one pumping chamber. A motor is connected to the reciprocating piston fluid pump to actuate the piston. A spray tip connected to an outlet of the at least one pumping chamber.Type: GrantFiled: May 9, 2023Date of Patent: October 10, 2023Assignee: 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
-
Patent number: 11759808Abstract: 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. The piston is configured to pressurize at least one pumping chamber. A motor is connected to the reciprocating piston fluid pump to actuate the piston. A spray tip connected to an outlet of the at least one pumping chamber.Type: GrantFiled: May 9, 2023Date of Patent: September 19, 2023Assignee: 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
-
Publication number: 20230271204Abstract: 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. The piston is configured to pressurize at least one pumping chamber. A motor is connected to the reciprocating piston fluid pump to actuate the piston. A spray tip connected to an outlet of the at least one pumping chamber.Type: ApplicationFiled: May 9, 2023Publication date: August 31, 2023Inventors: 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
-
Publication number: 20230271205Abstract: 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. The piston is configured to pressurize at least one pumping chamber. A motor is connected to the reciprocating piston fluid pump to actuate the piston. A spray tip connected to an outlet of the at least one pumping chamber.Type: ApplicationFiled: May 9, 2023Publication date: August 31, 2023Inventors: 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
-
Publication number: 20230219107Abstract: 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: March 17, 2023Publication date: July 13, 2023Inventors: 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
-
Patent number: 11623234Abstract: 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 5, 2021Date of Patent: April 11, 2023Assignee: 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
-
Patent number: 11446689Abstract: 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: May 11, 2022Date of Patent: September 20, 2022Assignee: 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
-
Patent number: 11446690Abstract: 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: May 11, 2022Date of Patent: September 20, 2022Assignee: 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
-
Publication number: 20220266280Abstract: 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: May 11, 2022Publication date: August 25, 2022Inventors: 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
-
Publication number: 20220266279Abstract: 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: May 11, 2022Publication date: August 25, 2022Inventors: 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
-
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
-
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
-
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
-
Patent number: 9968954Abstract: A fluid sprayer comprises a fluid source, a spray tip, a pump, and an outlet check value assembly. The spray tip has a fluid outlet aperture, and the pump is disposed to pump fluid from the fluid source out the fluid outlet aperture. The outlet check valve is disposed between the pump and the spray tip, and includes a sealing element, a seat, and a polymer housing. The seat is aligned to receive the sealing element, and the polymer housing is overmolded about the seat.Type: GrantFiled: January 20, 2015Date of Patent: May 15, 2018Assignee: Graco Minnesota Inc.Inventors: Steven D. Becker, Craig J. Wojciechowski, Harold D. Johnson
-
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
-
Patent number: 9815077Abstract: A high pressure capable fluid sprayer includes a piston pump, a main pump housing, and a spray tip. The piston pump has a piston disposed to pump a fluid. The spray tip has an outlet aperture configured to atomize and spray the fluid. The main pump housing is formed of compliant plastic and rated for at least 1600 psi, defines a main pump chamber surrounding the piston, and is disposed to receive fluid from a fluid source.Type: GrantFiled: January 20, 2015Date of Patent: November 14, 2017Assignee: Graco Minnesota Inc.Inventors: Steven D. Becker, Craig J. Wojciechowski, Harold D. Johnson
-
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
-
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
-
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
-
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