Patents by Inventor Daniel A. Stephens

Daniel A. Stephens 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).

  • Dual bladder connector
    Patent number: 5899765
    Abstract: A submersible connector having redundant bladders, each filled with a dielectric liquid. An inner bladder contains an electrical contact, and an insertion sleeve of the inner bladder is pinched closed by a spring. An outer bladder is disposed around the inner bladder, and also has an entrance sleeve that is pinched closed independently of the inner bladder. With this arrangement, the redundant bladders are constructed so as to provide independent penetrable seals.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: May 4, 1999
    Assignee: Lockheed Martin Services, Inc.
    Inventors: Edward J. Niekrasz, Daniel A. Stephens