Patents by Inventor Jerry Pyka

Jerry Pyka 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).

  • Composite seal for rotary cone rock bits
    Patent number: 5362073
    Abstract: An elastomeric o-ring rock bit seal is disclosed with two or more integrally bonded elastomers or phenolic type materials joined together to form the seal. The dynamic sealing face adjacent the journal bearing is fabricated from an elastomer/phenolic engineered specifically for wear resistance. The bulk of the seal adjacent the static seal retention cavity typically formed in the rotary cone is molded from an elastomer engineered specifically for precise control of the seal contact force adjacent the dynamic seal face when the seal is compressed against the dynamic face by the seal retention cavity in the cone.
    Type: Grant
    Filed: October 21, 1992
    Date of Patent: November 8, 1994
    Assignee: Smith International, Inc.
    Inventors: Robert G. Upton, Michael F. Hooper, Gary Portwood, Jerry Pyka, Randy Johnston, Robert Chambers
  • Composite seal for rotary cone rock bits
    Patent number: RE36452
    Abstract: An elastomeric o-ring rock bit seal is disclosed with two or more integrally bonded elastomers or phenolic type materials joined together to form the seal. The dynamic sealing face adjacent the journal bearing is fabricated from an elastomer/phenolic engineered specifically for wear resistance The bulk of the seal adjacent the static seal retention cavity typically formed in the rotary cone is molded from an elastomer engineered specifically for precise control of the seal contact force adjacent the dynamic seal face when the seal is compressed against the dynamic face by the seal retention cavity in the cone.
    Type: Grant
    Filed: July 8, 1996
    Date of Patent: December 21, 1999
    Assignee: Smith International, Inc.
    Inventors: Robert G. Upton, Michael E. Hooper, Jerry Pyka, Robert Chambers, Gary Portwood, Randy Johnston