Patents by Inventor Wendell M. Oldham, Jr.

Wendell M. Oldham, Jr. 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).

  • Shock absorber with compression spring and dust tube
    Patent number: 4235426
    Abstract: Shock absorber unit with polymeric convoluted compression spring having a variable spring rate is carried by the piston rod above the seal cover of the unit. The lower portion of the compression spring is formed with a series of mounting and stabilizing lips for the attachment of a dust tube encircling and protecting the upper portion of the piston rod. A rigid insert in the inner end of the compression spring prevents the polymeric material from flowing over the end of the shock absorber when the spring is under full compression loads and displacing the dust tube from its mounting.
    Type: Grant
    Filed: April 11, 1979
    Date of Patent: November 25, 1980
    Assignee: General Motors Corporation
    Inventors: Leo S. Sullivan, Jr., Patsy DeVincent, Wendell M. Oldham, Jr.