Patents by Inventor Mary M. Leininger

Mary M. Leininger 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).

  • Self-aligning, self-locking plastic bushing including a method for mounting the bushing to a wheel assembly
    Patent number: 5577843
    Abstract: A plastic bushing for use with wheel assemblies for low speed, off-highway vehicles of the type of hand trucks, wheelbarrows and the like. The plastic bushing is constructed of two substantially identical bushing members molded of a self-lubricating, preselected plastic and each having a flanged end for abutting the central opening of a wheel assembly. Each plastic bushing member is provided with diametrically spaced locking fingers with locking windows defined in the body of the bushing members for snap-locking to the locking fingers when aligned within the wheel assembly opening.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: November 26, 1996
    Assignee: Gleason Corporation
    Inventors: Mary M. Leininger, Danny C. Young