Patents by Inventor Phil Otto

Phil Otto 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).

  • Speed and steering control of a hydraulically driven tractor
    Patent number: 9796419
    Abstract: A tractor has hydraulically driven wheels at a cab end and castor wheels at an engine end. Each driven wheels is driven by a hydraulic motor with a continuous adjustment of the motor displacement, with the motor being driven by a pump also having continuous displacement. The motor displacement is controlled by an electronic controller in response to stroking of the speed control lever to manage the displacement to provide required drive torques at different points in the stroke. There is provided an automatic steering system having a guidance controller arranged to receive GPS position information which controls the steering by differentially adjusting the displacement of the motors so that the automatic steering is independent of the manual steering which controls the pumps.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: October 24, 2017
    Assignee: MacDon Industries Ltd.
    Inventors: Phil Otto, Don MacGregor, Leonard Bergman
  • Speed and Steering Control of a Hydraulically Driven Tractor
    Publication number: 20150166103
    Abstract: A tractor has hydraulically driven wheels at a cab end and castor wheels at an engine end. Each driven wheels is driven by a hydraulic motor with a continuous adjustment of the motor displacement, with the motor being driven by a pump also having continuous displacement. The motor displacement is controlled by an electronic controller in response to stroking of the speed control lever to manage the displacement to provide required drive torques at different points in the stroke. There is provided an automatic steering system having a guidance controller arranged to receive GPS position information which controls the steering by differentially adjusting the displacement of the motors so that the automatic steering is independent of the manual steering which controls the pumps.
    Type: Application
    Filed: December 4, 2014
    Publication date: June 18, 2015
    Inventors: Phil Otto, Don MacGregor, Leonard Bergman
  • Speed and steering control of a hydraulically driven tractor
    Patent number: 8985252
    Abstract: A tractor has hydraulically driven wheels at a cab end and castor wheels at an engine end. Each driven wheels is driven by a hydraulic motor with a continuous adjustment of the motor displacement, with the motor being driven by a pump also having continuous displacement. The motor displacement is controlled by an electronic controller in response to stroking of the speed control lever to manage the displacement to provide required drive torques at different points in the stroke. There is provided an automatic steering system having a guidance controller arranged to receive GPS position information which controls the steering by differentially adjusting the displacement of the motors so that the automatic steering is independent of the manual steering which controls the pumps.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: March 24, 2015
    Assignee: MacDon Industries Ltd.
    Inventors: Phil Otto, Don MacGregor, Leonard Bergman