Patents by Inventor Ray J. Gallagher

Ray J. Gallagher 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).

  • Air core gauge with zero pointer return related application
    Patent number: 4758784
    Abstract: An air core gauge having orthogonally related coils that react with a rotor magnet to angularly position an indicating pointer, suitable for use as either a pressure,temperature, or fuel gauge. All-attitude pointer zero return is achieved with a stationary magnet, and voltage regulation is eliminated with a zener diode in series with one of the coils.
    Type: Grant
    Filed: January 27, 1987
    Date of Patent: July 19, 1988
    Assignee: Stewart Warner Corporation
    Inventors: John D. Baker, Ray J. Gallagher