Patents by Inventor Glenn D. Weiss

Glenn D. Weiss 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).

  • Method for remotely approximating the stem thurst of motor operated valves
    Patent number: 5432436
    Abstract: A method is disclosed for approximating the stem thrust during the operation of a motor operated valve combination including a valve having a valve stem, a valve disk, a valve seat, and a motor operator having a motor drive means interconnecting the motor to the valve stem for movement of the valve stem disk toward and into engagement with the valve seat to close the valve and a control switch for deactivating the motor.
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: July 11, 1995
    Assignee: Liberty Technologies, Inc.
    Inventors: Robert L. Leon, Martin J. Dowling, Craig C. Nagler, Glenn D. Weiss