Patents by Inventor David M. Larsen

David M. Larsen 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: 10843211
    Abstract: 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 an airflow controller for controlling the flow of the compressed air to a nozzle of the spray gun, a pressure regulator for regulating a pressure of the compressed air flowing to the hopper, and a relief valve between the pressure regulator and 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: Grant
    Filed: January 25, 2019
    Date of Patent: November 24, 2020
    Assignee: Graco Minnesota Inc.
    Inventors: Steven D. Becker, David M. Larsen, Steve J. Wrobel, Mark D. Shultz, Robert J. Gundersen
  • Patent number: 10815990
    Abstract: A fluid dispensing system includes a motor housing and a piston pump assembly connected to the motor housing. A motor is mounted within the motor housing. The piston pump assembly includes a pump housing, a cartridge having a first end that extends into a second end of the pump housing, a piston that extends into a first end of the pump housing and the first end of the cartridge, and a packing stack within the cartridge and adjacent an inner surface of the cartridge and through which the piston extends. The cartridge is configured to be removed from the pump housing, and removal of the cartridge removes the packing stack from within the pump housing while leaving the pump housing connected to the motor housing.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: October 27, 2020
    Assignee: Graco Minnesota Inc.
    Inventors: Mark D. Shultz, David M. Larsen, Justin G. Johnston, Steve J. Wrobel
  • Publication number: 20200238318
    Abstract: 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: Application
    Filed: September 4, 2019
    Publication date: July 30, 2020
    Inventors: Mark D. Shultz, David M. Larsen, Max Carideo, Bradley K. Voigt
  • Publication number: 20200164752
    Abstract: 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: Application
    Filed: November 20, 2019
    Publication date: May 28, 2020
    Inventors: Joshua D. Roden, Tyler J. Kruzel, James C. Schroeder, Mark D. Shultz, David M. Larsen
  • Patent number: 10594188
    Abstract: A motor assembly includes a shaft, an electric motor operatively connected to the shaft to drive the shaft in a first rotational direction, a clutch assembly connected to the shaft, and a fan connected to the clutch assembly and configured to supply the electric motor with cooling air. The clutch assembly drives the fan when the electric motor drives the shaft and allows the fan to freewheel in the first rotational direction when the electric motor is not driving the shaft. A method of operating a fan cooled electric motor includes energizing the electric motor to drive a shaft in a first rotational direction using the electric motor and de-energizing the electric motor so that it no longer drives the shaft, allowing the fan to freewheel in the first rotational direction.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: March 17, 2020
    Assignee: Graco Minnesota Inc.
    Inventors: Glen W. Davidson, Christopher A. Lins, Bradley K. Voigt, David M. Larsen, August F. Legatt, Bret A. Deneson
  • Publication number: 20190374229
    Abstract: An example occlusive implant is disclosed. The example occlusive implant includes an expandable framework configured to shift between a first configuration and a second expanded configuration, an occlusive member disposed along at least a portion of an outer surface of the expandable framework and a resilient member coupled to the occlusive member. Further, the resilient member is configured to keep the occlusive member taut against an outer surface of the expandable member in both the first configuration and the second configuration.
    Type: Application
    Filed: June 7, 2019
    Publication date: December 12, 2019
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: James M. Anderson, David John Onushko, Joshua Mark Inouye, Steven R. Larsen, Daniel H. VanCamp, John M. Edgell
  • Patent number: 10497204
    Abstract: A method for tracking an event of an externally controlled interface (ECI) is described. The method includes generating the externally controlled interface independent of an outcome of a wager-based game regulated by a regulatory authority, and logging the event of the externally controlled interface.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: December 3, 2019
    Assignee: IGT
    Inventors: Reid M. Weber, William C. Little, Steven G. LeMay, Adrian R. Marcu, Warner R. Cockerille, IV, Nicole M. Beaulieu, David A. Gipp, Daniel de Waal, Vincent S. Manfredi, Bryan Bullard, Cara L. Iddings, Richard J. Schneider, Glenn Keith Russell, Jacob Graham, Gregory A. Schlottmann, Richard E. Rowe, David C. Williams, Kurt M. Larsen, Jae Man Yi, Erik B. Petersen
  • Publication number: 20190357916
    Abstract: An example medical device for occluding the left atrial appendage is disclosed. The example medical device for occluding the left atrial appendage includes an expandable member having a first end region and a second end region. The expandable member comprises at least one inflation cavity and at least one valve member configured to selectively seal the inflation cavity. A first inflation media may be disposed within the at least one inflation cavity and a second inflation media may be disposed within the at least one inflation cavity. The second inflation media may be different from the first inflation media. The expandable member may be configured to expand and seal the opening of the left atrial appendage.
    Type: Application
    Filed: May 23, 2019
    Publication date: November 28, 2019
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: Joshua Mark Inouye, David John Onushko, James M. Anderson, Jose A. Meregotte, David Raab, Steven R. Larsen, John M. Edgell, Nicholas Lee Tassoni
  • Patent number: 10415196
    Abstract: A line striper includes a frame supported by a plurality of wheels, a spray gun supported by the frame and positioned for ground spraying, a pump for supplying line striping fluid to the spray gun, the pump supported by the frame, an electric motor for driving the pump, the motor supported by the frame, a motor control attached to the motor and electrically connected to the motor, an inverter electrically connected to the motor control, the inverter supported by the frame, a first battery electrically connected to the inverter, the first battery supported by the frame, and a power switch electrically connected to the inverter, the motor control, and the first battery, the power switch supported by the frame.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: September 17, 2019
    Assignee: Graco Minnesota Inc.
    Inventors: Mark D. Shultz, David M. Larsen, James C. Schroeder
  • Patent number: 10392757
    Abstract: A line striper for ground marking with a sprayable fluid includes a horizontal frame, a front wheel mounted to the horizontal frame, a left rear wheel and a right rear wheel mounted to the horizontal frame, a rear axle extending from one or both of the left rear wheel and the right rear wheel, a mounting arm assembly connected to the horizontal frame, a spray gun mounted on the mounting arm assembly and positioned for spraying the ground, a pump mounted on the horizontal frame, the pump configured to pump the sprayable fluid to the spray gun, and a fluid reservoir support stage removably positioned over the horizontal frame.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: August 27, 2019
    Assignee: Graco Minnesota Inc.
    Inventors: Mark D. Shultz, David M. Larsen, James C. Schroeder
  • Publication number: 20190232307
    Abstract: 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 an airflow controller for controlling the flow of the compressed air to a nozzle of the spray gun, a pressure regulator for regulating a pressure of the compressed air flowing to the hopper, and a relief valve between the pressure regulator and 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: Application
    Filed: January 25, 2019
    Publication date: August 1, 2019
    Inventors: Steven D. Becker, David M. Larsen, Steve J. Wrobel, Mark D. Shultz, Robert J. Gundersen
  • Publication number: 20190232308
    Abstract: 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 an airflow controller for controlling the flow of the compressed air to a nozzle of the spray gun, a pressure regulator for regulating a pressure of the compressed air flowing to the hopper, and a relief valve between the pressure regulator and 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: Application
    Filed: January 25, 2019
    Publication date: August 1, 2019
    Inventors: Steven D. Becker, David M. Larsen, Steve J. Wrobel, Mark D. Shultz, Robert J. Gundersen
  • Publication number: 20190183509
    Abstract: An example medical device for occluding the left atrial appendage is disclosed. The example medical device for occluding the left atrial appendage includes an expandable member having a first end region, a second end region and an inflation cavity. The medical device also includes a plurality of spine members coupled to the expandable member, the plurality of spine members spaced circumferentially around an outer surface of the expandable member. Additionally, the medical device includes a valve member extending at least partially into the inflation cavity, wherein the plurality of spine members are configured to position the medical device within an opening of the left atrial appendage and wherein the expandable member is configured to expand and seal the opening of the left atrial appendage.
    Type: Application
    Filed: December 18, 2018
    Publication date: June 20, 2019
    Applicant: BOSTON SCIENTIFIC SCIMED, INC.
    Inventors: James M. Anderson, John M. Edgell, Jose A. Meregotte, Steven R. Larsen, David Raab, Peter John Hoffman, David John Onushko
  • Publication number: 20180195242
    Abstract: A line striper includes a frame supported by a plurality of wheels, a spray gun supported by the frame and positioned for ground spraying, a pump for supplying line striping fluid to the spray gun, the pump supported by the frame, an electric motor for driving the pump, the motor supported by the frame, a motor control attached to the motor and electrically connected to the motor, an inverter electrically connected to the motor control, the inverter supported by the frame, a first battery electrically connected to the inverter, the first battery supported by the frame, and a power switch electrically connected to the inverter, the motor control, and the first battery, the power switch supported by the frame.
    Type: Application
    Filed: January 9, 2018
    Publication date: July 12, 2018
    Inventors: Mark D. Shultz, David M. Larsen, James C. Schroeder
  • Publication number: 20180195241
    Abstract: A line striper for ground marking with a sprayable fluid includes a horizontal frame, a front wheel mounted to the horizontal frame, a left rear wheel and a right rear wheel mounted to the horizontal frame, a rear axle extending from one or both of the left rear wheel and the right rear wheel, a mounting arm assembly connected to the horizontal frame, a spray gun mounted on the mounting arm assembly and positioned for spraying the ground, a pump mounted on the horizontal frame, the pump configured to pump the sprayable fluid to the spray gun, and a fluid reservoir support stage removably positioned over the horizontal frame.
    Type: Application
    Filed: January 9, 2018
    Publication date: July 12, 2018
    Inventors: Mark D. Shultz, David M. Larsen, James C. Schroeder
  • Publication number: 20170292506
    Abstract: A fluid dispensing system includes a motor housing and a piston pump assembly connected to the motor housing. A motor is mounted within the motor housing. The piston pump assembly includes a pump housing, a cartridge having a first end that extends into a second end of the pump housing, a piston that extends into a first end of the pump housing and the first end of the cartridge, and a packing stack within the cartridge and adjacent an inner surface of the cartridge and through which the piston extends. The cartridge is configured to be removed from the pump housing, and removal of the cartridge removes the packing stack from within the pump housing while leaving the pump housing connected to the motor housing.
    Type: Application
    Filed: April 11, 2017
    Publication date: October 12, 2017
    Inventors: Mark D. Shultz, David M. Larsen, Justin G. Johnston, Steve J. Wrobel
  • Patent number: D818006
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: May 15, 2018
    Assignee: Graco Minnesota Inc.
    Inventors: Mark D. Shultz, David M. Larsen, James C. Schroeder
  • Patent number: D847303
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: April 30, 2019
    Assignee: Graco Minnesota Inc.
    Inventors: Steven D. Becker, David M. Larsen, Steve J. Wrobel
  • Patent number: D876485
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: February 25, 2020
    Assignee: Graco Minnesota Inc.
    Inventors: Thomas E. Pauly, Pamela J. Muetzel, David M. Larsen, Robert W. Kinne
  • Patent number: D904566
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: December 8, 2020
    Assignee: Graco Minnesota Inc.
    Inventors: David M. Larsen, Max Carideo