Patents by Inventor John D. Robinson, Jr.

John D. Robinson, Jr. 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).

  • Means for controlling the air scavenge pressure in the bearing compartment of a gas turbine engine
    Patent number: 4441311
    Abstract: A gas turbine engine has a bearing compartment with seals for confining the oil in a compartment and with compressor discharge pressure supplied to the seals externally of the compartment and in which a restrictive valve controlling the compartment vent is actuated by compressor discharge pressure to be opened in response to a drop in this pressure.
    Type: Grant
    Filed: May 13, 1982
    Date of Patent: April 10, 1984
    Assignee: United Technologies Corporation
    Inventors: Claude P. Rotondo, John D. Robinson, Jr.