Patents by Inventor Gary LaFayette

Gary LaFayette 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).

  • Electronic torque and pressure control for load sensing pumps
    Patent number: 11644027
    Abstract: A pump control system, comprising: a motor (12) configured to drive a pump (14); a pressure relief valve (22) in fluid communication with the pump (14); a torque control valve (32) connected to a swashplate of the pump (14) and in fluid communication with the pressure relief valve (22); a swashplate angle sensor (36) connected to the swashplate (34); and a computer (40) connected to the swashplate angle sensor (36) and the pressure relief valve (22) wherein the computer (40) controls the pressure relief valve (22) based upon swashplate displacement to achieve maximum system pressure. The corresponding method of controlling is also disclosed.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: May 9, 2023
    Assignee: Danfoss Power Solutions Inc.
    Inventors: Kevin Ligenfelter, Gary LaFayette
  • ELECTRONIC TORQUE AND PRESSURE CONTROL FOR LOAD SENSING PUMPS
    Publication number: 20160363117
    Abstract: A pump control system, comprising: a motor (12) configured to drive a pump (14); a pressure relief valve (22) in fluid communication with the pump (14); a torque control valve (32) connected to a swashplate of the pump (14) and in fluid communication with the pressure relief valve (22); a swashplate angle sensor (36) connected to the swashplate (34); and a computer (40) connected to the swashplate angle sensor (36) and the pressure relief valve (22) wherein the computer (40) controls the pressure relief valve (22) based upon swashplate displacement to achieve maximum system pressure. The corresponding method of controlling is also disclosed.
    Type: Application
    Filed: March 18, 2015
    Publication date: December 15, 2016
    Inventors: Kevin Ligenfelter, Gary LaFayette