Patents by Inventor Michael W. Whitworth

Michael W. Whitworth 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).

  • Inverted pivot
    Patent number: 6379213
    Abstract: A railroad car incorporating a pair of wheel carriages, each wheel carriage holding four wheels, and pivotally connected to a housing 8, the housing having a lower clearance passage provided through its bottom, an upper longitudinally inclined slot, opening to its top, and an aperture therethrough, and through which a fastener may locate, for pivotal securement of the wheel carriage to the underside of a railroad car.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: April 30, 2002
    Inventor: Michael W. Whitworth