Patents by Inventor Jack M. Ulanovsky

Jack M. Ulanovsky 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).

  • Climb and dive valve
    Patent number: 3946755
    Abstract: A climb and dive valve for use as in a pressurized aircraft fuel tank characterized in that the movable valve member thereof is opened to vent the fuel tank in response to predetermined increase in tank pressure with respect to ambient pressure, and is opened by a valve actuator to admit ambient air into the fuel tank in response to predetermined decrease in tank pressure with respect to ambient pressure.
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: March 30, 1976
    Assignee: Parker-Hannifin Corporation
    Inventor: Jack M. Ulanovsky