Patents by Inventor Mark D. Shultz
Mark D. Shultz 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: 11980911Abstract: A sprayer includes a spray gun and a hopper. An air source provides compressed air to the sprayer to both eject fluid from the spray gun as a spray and to pressurize the hopper. The spray gun includes passages for providing compressed air to the nozzle for spraying and to the hopper for pressurizing the hopper. The spray gun further includes a relief valve for venting pressurized air from the hopper. The hopper receives the compressed air through a port in the hopper, and the compressed air assists the flow of material out of the hopper and into the spray gun.Type: GrantFiled: March 23, 2023Date of Patent: May 14, 2024Assignee: Graco Minnesota Inc.Inventors: Steven D. Becker, David M. Larsen, Steve J. Wrobel, Mark D. Shultz, Robert J. Gundersen
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Publication number: 20230405624Abstract: A spray gun includes a gun body and a handle removably connected to the gun body. A filter is disposed in the handle for filtering particulate from the spray fluid. A trigger guard is connected to the handle and gun body and includes a contour on a lower portion of the trigger guard for receiving one or more fingers of the user that are not interfacing with and contacting the trigger. The trigger guard can be disconnected from the gun body and rotated relative to the handle. The trigger guard can contact a portion of the handle and exert torque on the handle to connect the handle to and disconnect the handle from the gun body. The portion of the handle at least partially covers a fitting connecting to the handle to provide spray fluid to the spray gun.Type: ApplicationFiled: August 30, 2023Publication date: December 21, 2023Inventors: Mark D. Shultz, Steven D. Becker, Brian M. Mulgrew, Tyler F. Sterner
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Patent number: 11772117Abstract: A spray gun includes a gun body and a handle removably connected to the gun body. A filter is disposed in the handle for filtering particulate from the spray fluid. A trigger guard is connected to the handle and gun body and includes a contour on a lower portion of the trigger guard for receiving one or more fingers of the user that are not interfacing with and contacting the trigger. The trigger guard can be disconnected from the gun body and rotated relative to the handle. The trigger guard can contact a portion of the handle and exert torque on the handle to connect the handle to and disconnect the handle from the gun body. The portion of the handle at least partially covers a fitting connecting to the handle to provide spray fluid to the spray gun.Type: GrantFiled: December 11, 2020Date of Patent: October 3, 2023Assignee: Graco Minnesota Inc.Inventors: Mark D. Shultz, Steven D. Becker, Brian M. Mulgrew, Tyler F. Sterner
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Publication number: 20230234085Abstract: A sprayer includes a spray gun and a hopper. An air source provides compressed air to the sprayer to both eject fluid from the spray gun as a spray and to pressurize the hopper. The spray gun includes passages for providing compressed air to the nozzle for spraying and to the hopper for pressurizing the hopper. The spray gun further includes a relief valve for venting pressurized air from the hopper. The hopper receives the compressed air through a port in the hopper, and the compressed air assists the flow of material out of the hopper and into the spray gun.Type: ApplicationFiled: March 23, 2023Publication date: July 27, 2023Inventors: Steven D. Becker, David M. Larsen, Steve J. Wrobel, Mark D. Shultz, Robert J. Gundersen
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Publication number: 20230184235Abstract: A pump assembly includes a pump module configured to be supported by a fluid tank and a drive module configured to be supported by the pump module. The drive module is mountable to and dismountable from the pump module. The drive module provides a motive force to the pump module to power pumping by the pump module.Type: ApplicationFiled: May 27, 2021Publication date: June 15, 2023Inventors: Matthew R. Theisen, Bryan K. Colby, Bryce J. Gapinski, Jeremy P. Jurmu, David M. Larsen, Mark D. Shultz
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Publication number: 20230136204Abstract: A pumping assembly comprises: a motor (24) including a stator and a rotor, the rotor configured to rotate relative the stator on a pump axis (PA); a drive mechanism (24) connected to the rotor, the drive mechanism (24) configured to receive a rotational output from the rotor and convert the rotational output into a linear input along the pump axis to cause pumping of the fluid; and a piston (34) connected to the drive mechanism (26) to receive the linear input and disposed coaxially with the drive mechanism (26) and the rotor, wherein the piston (34) is configured to reciprocate axially along the pump axis to pump fluid.Type: ApplicationFiled: March 31, 2021Publication date: May 4, 2023Inventors: Matthew R. Theisen, Arthur T. Graf, Bryan K. Colby, Andrew J. Ericson, Thomas F. Janecek, Christopher A. Lins, Alexander J. Daeger, David M. Larsen, Jeremy P. Jurmu, William M. Blenkush, Mark D. Shultz, Steven D. Becker
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Patent number: 11623233Abstract: A sprayer includes a spray gun and a hopper. An air source provides compressed air to the sprayer to both eject fluid from the spray gun as a spray and to pressurize the hopper. The spray gun includes passages for providing compressed air to the nozzle for spraying and to the hopper for pressurizing the hopper. The spray gun further includes a relief valve for venting pressurized air from the hopper. The hopper receives the compressed air through a port in the hopper, and the compressed air assists the flow of material out of the hopper and into the spray gun.Type: GrantFiled: June 16, 2021Date of Patent: April 11, 2023Assignee: Graco Minnesota Inc.Inventors: Steven D. Becker, David M. Larsen, Steve J. Wrobel, Mark D. Shultz, Robert J. Gundersen
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Publication number: 20230059159Abstract: A battery powered driver for propelling a wheeled ground surface modifying machine includes at least one wheel contacting a ground surface, a battery powered electric motor, control circuitry configured to manage delivery of electrical battery power to the electric motor to control a sped of the driver, at least one pedal attached to a pedal axle and tiltable in each of a forward and rearward direction with respect to the pedal axle, and at least one pedal tilt sensor configured to output one or more signals to the control circuitry indicating a degree of tilt of the at least one pedal.Type: ApplicationFiled: November 4, 2022Publication date: February 23, 2023Inventors: Joshua D. Roden, Tyler J. Kruzel, James C. Schroeder, Mark D. Shultz, David M. Larsen
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Patent number: 11518253Abstract: A battery powered driver for propelling a wheeled ground surface modifying machine includes at least one wheel contacting a ground surface, a battery powered electric motor, control circuitry configured to manage delivery of electrical battery power to the electric motor to control a sped of the driver, at least one pedal attached to a pedal axle and tiltable in each of a forward and rearward direction with respect to the pedal axle, and at least one pedal tilt sensor configured to output one or more signals to the control circuitry indicating a degree of tilt of the at least one pedal.Type: GrantFiled: November 20, 2019Date of Patent: December 6, 2022Assignee: Graco Minnesota Inc.Inventors: Joshua D. Roden, Tyler J. Kruzel, James C. Schroeder, Mark D. Shultz, David M. Larsen
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Patent number: 11440038Abstract: A material sprayer includes a hopper module and a power module. The power module is mountable and dismountable from the hopper module. The hopper module includes a hopper frame and a hopper supported by the hopper frame. The power module includes a drive and a pump connected to and configured to be powered by the drive. The pump interfaces with the hopper with the power module mounted on the hopper frame such that the pump can draw material from the hopper.Type: GrantFiled: September 4, 2019Date of Patent: September 13, 2022Assignee: Graco Minnesota Inc.Inventors: Mark D. Shultz, David M. Larsen, Max Carideo, Bradley K. Voigt
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Publication number: 20220220950Abstract: A drive system for a fluid displacement pump includes an electric motor, a drive coupled to the rotor at a first end of the electric motor, a pump including a fluid displacement member mechanically coupled to the drive, and a controller configured to control a level of power to the electric motor based on a pressure setting set by a user. The electric motor includes a stator and a rotor disposed on an axis. The drive coupled to the rotor converts the rotational output to a linear, reciprocating input to power a pump.Type: ApplicationFiled: April 1, 2022Publication date: July 14, 2022Inventors: Thomas F. Janecek, Tyler Kenneth Williams, Andrew J. Kopel, Jarrod C. Drexler, Douglas S. Ryder, Jacob D. Scherer, Todd B. Hillukka, Nicholas J. Stein, Mark D. Shultz
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Patent number: 11220797Abstract: A ground marking apparatus is configured to apply marking material to a ground surface. The ground marking apparatus includes a beam supported by a beam mount and extending along a beam axis. A carriage is disposed on the beam and movable on the beam along the beam axis. A carriage motor operably interfaces with the beam and is configured to move the carriage along the beam. A dispense arm is supported by the carriage and is configured to move relative to the beam as the carriage moves along the beam.Type: GrantFiled: December 27, 2018Date of Patent: January 11, 2022Assignee: Graco Minnesota Inc.Inventors: James C. Schroeder, Mark D. Shultz, Roland M. Bedard, Daniel D. Rohling
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Publication number: 20210372383Abstract: A transfer pump includes a drive module having electronic components and a fluid module not including electronic components. The drive module provides motive power to a pump of the fluid module to power pumping by the fluid module. A control module is configured to monitor operation of the transfer pump and control pumping by the transfer pump. The control module is configured to receive dosing commands from a user interface, recall a dosing parameter based on the dosing command, and cause the drive module to operate the fluid module based on the dosing parameter to cause the transfer pump to output a set volume of material.Type: ApplicationFiled: May 27, 2021Publication date: December 2, 2021Inventors: Mark D. Shultz, Robert J. Gundersen, Rami A. Azer
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Publication number: 20210372387Abstract: A transfer pump includes a drive module having electronic components and a fluid module not including electronic components. The drive module provides motive power to a pump of the fluid module to power pumping by the fluid module. The drive module is movably mounted to the fluid module at dynamic and static interfaces to power reciprocation of a pumping component of the fluid module by the dynamic interface and such the drive module supports the fluid module at the static interface.Type: ApplicationFiled: May 27, 2021Publication date: December 2, 2021Inventors: David M. Larsen, Jeremy P. Jurmu, Mark D. Shultz, Quincy A. Kesti, Marcos M. Rodriguez
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Publication number: 20210372386Abstract: A transfer pump includes a drive module having electronic components and a fluid module not including electronic components. The drive module provides motive power to a pump of the fluid module to power pumping by the fluid module.Type: ApplicationFiled: May 27, 2021Publication date: December 2, 2021Inventors: Steven D. Becker, Mark D. Shultz, Jeremy P. Jurmu, David M. Larsen, Robert J. Gundersen
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Publication number: 20210308702Abstract: A sprayer includes a spray gun and a hopper. An air source provides compressed air to the sprayer to both eject fluid from the spray gun as a spray and to pressurize the hopper. The spray gun includes passages for providing compressed air to the nozzle for spraying and to the hopper for pressurizing the hopper. The spray gun further includes a relief valve for venting pressurized air from the hopper. The hopper receives the compressed air through a port in the hopper, and the compressed air assists the flow of material out of the hopper and into the spray gun.Type: ApplicationFiled: June 16, 2021Publication date: October 7, 2021Inventors: Steven D. Becker, David M. Larsen, Steve J. Wrobel, Mark D. Shultz, Robert J. Gundersen
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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: D955335Type: GrantFiled: February 24, 2021Date of Patent: June 21, 2022Assignee: Graco Minnesota Inc.Inventors: Mark D. Shultz, Robert J. Gundersen
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Patent number: D964506Type: GrantFiled: February 24, 2021Date of Patent: September 20, 2022Assignee: Graco Minnesota Inc.Inventors: Mark D. Shultz, Robert J. Gundersen
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Patent number: D1004623Type: GrantFiled: February 24, 2021Date of Patent: November 14, 2023Assignee: Graco Minnesota Inc.Inventors: Mark D. Shultz, Robert J. Gundersen