Patents by Inventor Shannon D. Carver

Shannon D. Carver 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).

  • Control system for hydrostatic pump
    Patent number: 6640687
    Abstract: A non-feedback proportional system is provided to achieve desired operating characteristics which will allow the control of a hydrostatic transmission to closely approximate the control performance of a displacement feedback control system by establishing certain parameters relating to (1) the servo spring rate; (2) the valve plate index; (3) valve plate crossport/trap; (4) valve plate porting geometry; (5) swashplate offset; and (6) piston bore volume.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: November 4, 2003
    Assignee: Sauer-Danfoss Inc.
    Inventors: Stephen C. Frantz, Shannon D. Carver, Craig C. Klocke, Dennis M. Greene