Patents by Inventor Keith Gilman

Keith Gilman 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).

  • Exhalation valve assembly
    Patent number: 4712580
    Abstract: An exhalation valve assembly for use in a volume ventilator circuit is disclosed that comprises a valve body defining a chamber with a gas inlet conduit and a gas outlet conduit, both in flow communication with the chamber. A diaphragm extends across the chamber and selectively closes off the gas inlet conduit. A concentric ring support structure is disposed concentrically about the gas inlet conduit and is configured so as to support a portion of the diaphragm over the chamber.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: December 15, 1987
    Assignee: Intertech Resources Inc.
    Inventors: Keith Gilman, Bruce W. Lutz