Patents by Inventor Ivan A. Burns

Ivan A. Burns 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).

  • Restricted movement valve seats for an expanding gate valve
    Patent number: 4313458
    Abstract: In an expanding gate valve, tangential pins (70) are received loosely in peripheral grooves (62) of floating valve seats (26) to prevent the seats from moving inwardly far enough to drag against a gate mechanism (32) which is collapsed for movement between open and closed positions of the valve. Alternative arrangements provide retainer rings (122, 130) which engage shoulders (128) of the seats to limit their inward floating movement.
    Type: Grant
    Filed: November 21, 1980
    Date of Patent: February 2, 1982
    Assignee: ACF Industries, Incorporated
    Inventors: Ivan A. Burns, William R. Hochmuth
  • Restricted movement valve seats for an expanding gate valve
    Patent number: 4246928
    Abstract: In an expanding gate valve, tangential pins (70) are received loosely in peripheral grooves (62) of floating valve seats (26) to prevent the seats from moving inwardly far enough to drag against a gate mechanism (32) which is collapsed for movement between open and closed positions of the valve. Alternative arrangements provide retainer rings (122, 130) which engage shoulders (128) of the seats to limit their inward floating movement.
    Type: Grant
    Filed: November 19, 1979
    Date of Patent: January 27, 1981
    Assignee: ACF Industries, Incorporated
    Inventors: Ivan A. Burns, William R. Hochmuth