Patents by Inventor Terry L. Sieverman

Terry L. Sieverman 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).

  • Electrical plug lock apparatus
    Patent number: 4812131
    Abstract: A lock apparatus (10) for an electrical plug (100) wherein the lock apparatus comprises a housing unit (11) provided with an elongated slot (25') and containing a key actuated lock mechanism (70) which cooperates with a plug capturing member (80) which is slideably disposed in the elongated slot (25'); wherein, the capturing member (80) is provided with capturing arms (83) which are adapted to engage the rear of the electrical plug (100).
    Type: Grant
    Filed: March 23, 1988
    Date of Patent: March 14, 1989
    Inventor: Terry L. Sieverman