Patents by Inventor Frank R. Archibald

Frank R. Archibald 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).

  • Patent number: 4655096
    Abstract: A flexure mount assembly particularly adapted for use in a dynamically tuned two-degree-of-freedom gyroscope to provide a universal coupling between a rotor element and a drive shaft. The mount features a substantially planar "spider" member normally oriented transversely to the spin axis of the rotor. The spider has four webs, each web extending radially from an inner central area associated with an inner gimbal ring to an outer annular area. The outer annular area is associated with an outer ring which is divided into four independent sectors.Each web has two sections and each section has the shape of two parabolas which intersect at their vertices. A central aperture roughly elliptical in shape is thus formed in each web. At both ends of each aperture, narrow radial slots are formed. Two mutually perpendicular "vertical" or cross flexure members each have key portions that extend in planes parallel to the spin axis through the radial slots.
    Type: Grant
    Filed: August 31, 1984
    Date of Patent: April 7, 1987
    Assignee: Northrop Corporation
    Inventors: Robert O. Westhaver, Donald W. Carow, Frank R. Archibald