Patents by Inventor David Byrnes

David Byrnes 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).

  • Device having a hard seat support
    Patent number: 9212536
    Abstract: A device having a hard seat support disposed with a hard seat to reduce or prevent buckling, bursting, and/or permanent deformation of the hard seat that compromises the seal across the hard sealing surface and flapper sealing surface interface. The hard seat support may be positioned along an inner periphery of the hard seat or in direct contact with an outer periphery of the hard seat.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: December 15, 2015
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: David James Biddick, David Byrnes
  • DEVICE HAVING A HARD SEAT SUPPORT
    Publication number: 20130341050
    Abstract: A device having a hard seat support disposed with a hard seat to reduce or prevent buckling, bursting, and/or permanent deformation of the hard seat that compromises the seal across the hard sealing surface and flapper sealing surface interface. The hard seat support may be positioned along an inner periphery of the hard seat or in direct contact with an outer periphery of the hard seat.
    Type: Application
    Filed: June 25, 2012
    Publication date: December 26, 2013
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: David James Biddick, David Byrnes