Patents by Inventor Francis E. Parsons

Francis E. Parsons 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: 5564533
    Abstract: The present invention relates to a brake assembly and a pad configuration for use therein which is capable of use in corrosive environments without significant damage occurring to the assembly from such usage. The assembly comprises a single disc, a housing surrounding the disc which together with rotary seals provides a substantially sealed zone within which an annular braking surface of the disc rotates, and at least one friction pad having a friction surface adapted to be moved against the braking surface to provide a braking effect. The friction surface has a leading edge which is swept or angled rearwardly from a radial line passing through an inner leading edge corner of the friction surface and one or more grooves which are open at both ends and which are also angled rearwardly from a radial line passing through an inner forward end of each groove.
    Type: Grant
    Filed: April 11, 1994
    Date of Patent: October 15, 1996
    Inventor: Francis E. Parsons
  • Patent number: 4804205
    Abstract: A suspension system for a wheeled vehicle, particularly for off road use, the suspension system comprising a plurality of axle assemblies (26, 35, 44), each carrying wheels (27, 36, 48) at either end with a leaf spring suspension element (28, 37, 45) located between each end of each axle assembly and a chassis frame (20) of the vehicle, the axle assemblies (26, 35, 44) being connected to each leaf spring suspension element (27, 36, 48) by means of a connecting device (50) enabling pivotal movement of the spring suspension element relative to the associated axle assembly about an axis transverse to the axle assembly or generally parallel to the longitudinal direction of the vehicle thereby permitting relative vertical movement between the wheels at opposite ends of the axle assemblies without any substantial distortion or twisting of either the vehicle chassis or the spring elements themselves.
    Type: Grant
    Filed: June 22, 1987
    Date of Patent: February 14, 1989
    Inventor: Francis E. Parsons