Patents by Inventor Tom D. Greiner

Tom D. Greiner 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).

  • Patent number: 4589492
    Abstract: A submersible pump installation for a subsea well has an electrical connection that is hydraulically made up with provisions to avoid contact with sea water. The submersible pump is suspended by a suspension head located in a tubular member at the subsea wellhead. An electrical insulator is movably carried in a passage extending through a wall of the tubular member. An electrical connector pin is carried in the insulator. A piston moves the insulator into contact with the suspension head, then the connector pin into engagement with the electrical connector located in the suspension head. A seal and dielectric fluid in the suspension head serve to prevent contamination by liquids in the subsea wellhead.
    Type: Grant
    Filed: October 10, 1984
    Date of Patent: May 20, 1986
    Assignee: Hughes Tool Company
    Inventors: Tom D. Greiner, Raymond L. Guzy, Dick L. Knox