Patents by Inventor Paul A. Boruff

Paul A. Boruff 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).

  • Grass mowing machine with hydraulic circuit having diverter valve
    Patent number: 9788482
    Abstract: A grass mowing machine has a plurality of cutting units, and a diverter valve diverting hydraulic flow from a raise/lower sub-circuit to a mowing sub-circuit when the engine runs at a reduced or economy mode speed and the cutting units are at the lowered position.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: October 17, 2017
    Assignee: DEERE & COMPANY
    Inventors: Paul A. Boruff, Brent G. Rinholm
  • GRASS MOWING MACHINE WITH HYDRAULIC CIRCUIT HAVING DIVERTER VALVE
    Publication number: 20170188509
    Abstract: A grass mowing machine has a plurality of cutting units, and a diverter valve diverting hydraulic flow from a raise/lower sub-circuit to a mowing sub-circuit when the engine runs at a reduced or economy mode speed and the cutting units are at the lowered position.
    Type: Application
    Filed: January 6, 2016
    Publication date: July 6, 2017
    Inventors: Paul A. Boruff, Brent G. Rinholm