Patents by Inventor Gary A. Ellertson

Gary A. Ellertson 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: 8444062
    Abstract: A fluid distribution system and method for mobile applications. The system includes a power source, a pump driven by the power source, and a motor driven by the pump. The system also includes a spray head with a fluid inlet passage, a fluid outlet passage, a fluid piston disposed in a chamber for controlled access between the inlet and outlet passages and defining a variable orifice, and a hydraulic cylinder controllably engaged to the orifice. The fluid piston and the hydraulic cylinder are aligned with a common longitudinal axis, and the inlet passage is offset from the axis in a direction opposed to the location of the outlet passage.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: May 21, 2013
    Assignee: Caterpillar Inc.
    Inventors: Peter W. Anderton, Gary A. Ellertson
  • Patent number: 8376244
    Abstract: A fluid distribution system and method for mobile applications. The system includes a power source, a pump driven by the power source, and a motor driven by the pump. The system also includes a spray head with a fluid inlet passage, a fluid outlet passage, a fluid piston disposed in a chamber for controlled access between the inlet and outlet passages and defining a variable orifice, and a hydraulic cylinder controllably engaged to the orifice. The fluid piston and the hydraulic cylinder are aligned with a common longitudinal axis, and the inlet passage is offset from the axis in a direction opposed to the location of the outlet passage.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: February 19, 2013
    Assignee: Caterpillar Inc.
    Inventors: Peter W. Anderton, Ronald Brown, David C. Orr, Gary A. Ellertson
  • Publication number: 20100301134
    Abstract: A fluid distribution system and method for mobile applications. The system includes a power source, a pump driven by the power source, and a motor driven by the pump. The system also includes a spray head with a fluid inlet passage, a fluid outlet passage, a fluid piston disposed in a chamber for controlled access between the inlet and outlet passages and defining a variable orifice, and a hydraulic cylinder controllably engaged to the orifice. The fluid piston and the hydraulic cylinder are aligned with a common longitudinal axis, and the inlet passage is offset from the axis in a direction opposed to the location of the outlet passage.
    Type: Application
    Filed: December 21, 2009
    Publication date: December 2, 2010
    Applicant: Caterpillar Inc.
    Inventors: Peter W. Anderton, Gary A. Ellertson
  • Publication number: 20100301127
    Abstract: A fluid distribution system and method for mobile applications. The system includes a power source, a pump driven by the power source, and a motor driven by the pump. The system also includes a spray head with a fluid inlet passage, a fluid outlet passage, a fluid piston disposed in a chamber for controlled access between the inlet and outlet passages and defining a variable orifice, and a hydraulic cylinder controllably engaged to the orifice. The fluid piston and the hydraulic cylinder are aligned with a common longitudinal axis, and the inlet passage is offset from the axis in a direction opposed to the location of the outlet passage.
    Type: Application
    Filed: May 27, 2009
    Publication date: December 2, 2010
    Applicant: Caterpillar Inc.
    Inventors: Peter W. Anderton, Ronald Brown, David C. Orr, Gary A. Ellertson
  • Patent number: 6138069
    Abstract: A hydraulically driven utility vehicle which supports and powers work attachments. An electronic system is incorporated in the vehicle for having the vehicle traverse the ground at a selected speed and for operating the attachment at a selected speed so that the work of the attachment can be performed in a uniform rate, as desired.
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: October 24, 2000
    Assignee: Textron Inc.
    Inventors: Gary A. Ellertson, Mark W. Fischer
  • Patent number: 6073716
    Abstract: A method and system for a hydraulic drive for a vehicle wherein when one of the vehicle traction wheels is in a frictionless spin mode, then the hydraulic pressure is subjected to the action of the fuse which directs the pressure or increase in hydraulic flow to the remaining wheel or wheels for traction drive. The system can be used in either the forward or reverse drive mode.
    Type: Grant
    Filed: March 30, 1998
    Date of Patent: June 13, 2000
    Assignee: Textron Inc.
    Inventors: Gary A. Ellertson, Kellen J. Chicoine