Patents by Inventor John W. Holman

John W. Holman 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).

  • Temperature compensated microbend fiber optic differential pressure transducer
    Patent number: 5386729
    Abstract: A differential pressure transducer cell comprises a housing and a pair of spaced diaphragms connected at one end to one portion of the housing and connected at an opposite end to a second portion of the housing. The diaphragms have an outer surface and an inner surface; and the outer surface of each diaphragm is exposed to a pressure. A beam is connected between the diaphragms at the inner surface of the diaphragms. Sensors are also provided on the beam.
    Type: Grant
    Filed: September 22, 1993
    Date of Patent: February 7, 1995
    Assignee: The Babcock & Wilcox Company
    Inventors: Stuart E. Reed, John W. Holman, John W. Berthold