Patents by Inventor E. Bruce Whitehead

E. Bruce Whitehead 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).

  • Flexible extrusion resistant ring seal assembly
    Patent number: 8444185
    Abstract: An extrusion resistant ring that is radially expandable and contactable to accommodate the relative movement of two joined bodies relative to each other. The extrusion resistant ring in combination with an elastomeric diaphragm provides a high pressure seal for down-hole oil drilling apparatus.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: May 21, 2013
    Assignee: Parker-Hanninfin Corporation
    Inventors: Darron G. Peddle, E. Bruce Whitehead
  • FLEXIBLE EXTRUSION RESISTANT RING FOR SEAL ASSEMBLY
    Publication number: 20100326737
    Abstract: An extrusion resistant ring that is radially expandable and contactable to accommodate the relative movement of two joined bodies relative to each other. The extrusion resistant ring in combination with an elastomeric diaphragm provides a high pressure seal for down-hole oil drilling apparatus.
    Type: Application
    Filed: June 23, 2010
    Publication date: December 30, 2010
    Inventors: Darron G. Peddle, E. Bruce Whitehead