Patents by Inventor Robert Henry Ash, Jr.

Robert Henry Ash, Jr. 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).

  • Swashplate pump incorporating a dual location cluster bearing
    Patent number: 5678471
    Abstract: A swashplate style pump uses a dual location cluster bearing of consistent configuration for use in each of two positions in the pump. In one location the dual location cluster bearing will interface with pistons and the swashplate cam. In a second location the dual position cluster bearing will interface with the non-camming side of the swashplate and the back plate of the pump. The dual position cluster bearing can be used in either and both positions with equal facility.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: October 21, 1997
    Assignee: FMC Corporation
    Inventors: Robert Henry Ash, Jr., Brian Michael Chrestoff
  • Cam follower retainer for a swashplate pump
    Patent number: 5676035
    Abstract: In a swashplate style pump a cam follower that interfaces the pump pistons and the swashplate cam is a ring of material. This ring of material will be provided with a bearing surface and a piston contacting surface having the piston contacting surface provided with piston receiving elements.
    Type: Grant
    Filed: March 5, 1996
    Date of Patent: October 14, 1997
    Assignee: FMC Corporation
    Inventors: Brian Michael Chrestoff, Robert Henry Ash, Jr.