Patents by Inventor Cliff Evans

Cliff Evans 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: 4667701
    Abstract: In a nozzle dam assembly wherein a flange ring is affixed around a circular nozzle opening in a chamber wall, a support frame spans and is in non-threaded connection with the ring by releasable pins which carry under tension any load on the frame directed axially out of the nozzle into the chamber, and a circular dam with a sealing diaphragm disposed over it is attachable to the frame with its rim within the nozzle so that inflatable peripheral sealing means on the diaphragm effect the desired seal of the nozzle independent of the aforementioned axial load.
    Type: Grant
    Filed: December 27, 1984
    Date of Patent: May 26, 1987
    Assignee: Nuclear Energy Systems, Inc.
    Inventors: Cliff Evans, Alvaro Obligado, Louis J. Zezza
  • Patent number: 4656714
    Abstract: In a nozzle dam assembly wherein a flange ring is affixed around a circular nozzle opening in a chamber wall, a support frame spans and is in non-threaded connection with the ring by releasable pins which carry under tension any load on the frame directed axially out of the nozzle into the chamber, and a circular dam with a sealing diaphragm disposed over it is attachable to the frame with its rim within the nozzle so that inflatable peripheral sealing means on the diaphragm effect the desired seal of the nozzle independent of the aforementioned axial load.
    Type: Grant
    Filed: January 27, 1986
    Date of Patent: April 14, 1987
    Assignee: Automation Industries, Inc.
    Inventors: Cliff Evans, Alvaro Obligado, Louis J. Zezza