Patents by Inventor David M. Simms

David M. Simms 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: 6155573
    Abstract: A one-piece, reusable hub seal unit for heavy duty axles and the like. The unit includes a stiff but flexible casing covered with an elastomeric portion. The casing has a radial flange, a slightly axially inclined sleeve portion, and a purely axial portion ending in a free edge. The elastomeric covering is thin adjacent the free edge, gradually increases in thickness throughout the slightly inclined axial extent and finally contains a radial section covering the flange and having two or more sealing ribs. A cover holds the seal unit in place when it seals snugly in the counterbore. When the cover is removed, the seal may be removed by hand from the counterbore.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: December 5, 2000
    Assignee: SKF USA Inc.
    Inventor: David M. Simms