Patents by Inventor Lee A. Biersdorf

Lee A. Biersdorf 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: 5373616
    Abstract: A method and apparatus for installing an elastomeric handgrip on an article. The handgrip is initially stretched over a hollow core consisting of one or more sections that can be removed from within the handgrip using slight tension. The proximal end of the assembly is placed over the article with the distal end of the handgrip aligned with the desired position, in some cases a positioning member being used to ensure proper alignment. The core is removed by tensioning the distal end, permitting the tubular handgrip to contract progressively starting from the distal end. In one embodiment, the core is a thin flat strip wound spirally and connected along abutting edges to form a helical tear line. The free end of the strip passes longitudinally through the bore from the distal to proximal end. Tension on the free end breaks the leading edge of the tear line, causing the strip to unwind and sequentially collapse each looped segment due to the force exerted by the handgrip.
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: December 20, 1994
    Assignee: BOA, Inc.
    Inventors: Jack S. Biersdorf, Lee A. Biersdorf