Patents by Inventor Leonard K Mast

Leonard K Mast 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).

  • Vehicle cab tilt apparatus
    Patent number: 10647364
    Abstract: A vehicle is disclosed which includes a frame with a viscous isolator, a first pin receptor, a retainer, a cab, and a pin. The first pin receptor includes a base portion mounted to the viscous isolator and a top portion movable within a limited range relative to the frame. The retainer is detachably mounted to the frame such that the top portion of the first pin receptor protruding through an aperture in the retainer, and the base portion of the first pin receptor is below the aperture. A pin is received by the top portion of the first pin receptor and a second pin receptor included in a cab, rendering the cab tiltable relative to the frame about the pin. The aperture of the retainer and the base portion of the first pin receptor are each configured such that the base portion cannot pass through the aperture.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: May 12, 2020
    Assignee: DEERE & COMPANY
    Inventors: Joseph F. Tilp, Trisha L. Oyen, Leonard K. Mast, Stephen Lovas
  • VEHICLE CAB TILT APPARATUS
    Publication number: 20190300076
    Abstract: A vehicle is disclosed which includes a frame with a viscous isolator, a first pin receptor, a retainer, a cab, and a pin. The first pin receptor includes a base portion mounted to the viscous isolator and a top portion movable within a limited range relative to the frame. The retainer is detachably mounted to the frame such that the top portion of the first pin receptor protruding through an aperture in the retainer, and the base portion of the first pin receptor is below the aperture. A pin is received by the top portion of the first pin receptor and a second pin receptor included in a cab, rendering the cab tiltable relative to the frame about the pin. The aperture of the retainer and the base portion of the first pin receptor are each configured such that the base portion cannot pass through the aperture.
    Type: Application
    Filed: March 27, 2018
    Publication date: October 3, 2019
    Inventors: Joseph F. Tilp, Trisha L. Oyen, Leonard K. Mast, Stephen Lovas
  • Adjustable hydraulic metering system
    Patent number: 7401542
    Abstract: A vehicle is disclosed having a hydraulic control system with a user input to select a range of metering rates.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: July 22, 2008
    Assignee: Deere & Company
    Inventors: Joshua J Stephens, Leonard K Mast