Patents by Inventor R. Wayne McGhee

R. Wayne McGhee 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: 4544979
    Abstract: An automatic current lead retraction system for superconducting magnet installations. An automatic current lead retraction system utilizes an operator wherein either hydraulic or pneumatic cylinders bring about electrical contact of the current leads or the separation thereof as well as a safety shorting switch for the system. By using the pneumatic or hydraulic cylinders and all non-magnetic materials, there is no influence upon the magnetic field created by the superconducting magnet. Provision is made to monitor the condition of the magnet to be certain that it is in a persistent mode before the current leads are retracted. Furthermore, safety signals are generated to assure that no current is flowing at the time of retraction, that the resistance across the contacts is sufficiently low when engaged and that all electrical, air/hydraulic fluid systems are functioning properly before operation of the retracting system. Overall control is achieved using a microprocessor.
    Type: Grant
    Filed: March 22, 1984
    Date of Patent: October 1, 1985
    Assignee: Cryomagnetics, Inc.
    Inventors: Robert M. Ennis, Jr., D. Michael Coffey, R. Wayne McGhee