Patents by Inventor Ron C. Singleterry

Ron C. Singleterry 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).

  • Method of making a pump having relief valve seat free of direct structural restraint
    Patent number: 6088916
    Abstract: A pump includes a coaxially integrated pump bypass/relief valve element of high density polymer material seats against a hard metallic sleeve that is pressed into a first counterbore around the bypass flow channel with an interference fit. That axial end of the sleeve bearing the valve seat face projects, for a substantial proportion of the sleeve length, beyond the first counterbore shoulder into a second counterbore space to provide an annular space around the outside diameter surface of the sleeve to free the seat face end of the sleeve from direct structural restraint.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: July 18, 2000
    Assignee: Standex International Corp.
    Inventors: Ron C. Singleterry, John Zavisa
  • Pump having relief valve seat free of direct structural restraint
    Patent number: 5919033
    Abstract: A pump includes a coaxially integrated pump bypass/relief valve element of high density polymer material seats against a hard metallic sleeve that is pressed into a first counterbore around the bypass flow channel with an interference fit. That axial end of the sleeve bearing the valve seat face projects, for a substantial proportion of the sleeve length, beyond the first counterbore shoulder into a second counterbore space to provide an annular space around the outside diameter surface of the sleeve to free the seat face end of the sleeve from direct structural restraint.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: July 6, 1999
    Assignee: Standex International Corporation
    Inventors: Ron C. Singleterry, John Zavisa