Patents by Inventor Donald T. Wall

Donald T. Wall 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).

  • Reinforcing fabric for power transmission belts
    Patent number: 5536554
    Abstract: A reinforcing fabric for reinforcing power transmission belts is comprised of a first fibrous web having minimal warp yarns and filler yarns oriented at a desired right lead. A second fibrous web is provided which has minimal warp yarns and filler yarns oriented at a desired left lead. The first and second fibrous webs are interconnected either mechanically, chemically, or both, so that an angle of between 178.degree. and 60.degree. is formed between the filler yarns of the first fibrous web and the filler yarns of the second fibrous web when viewed in the direction of tension on the power transmission belt. The resulting reinforcing fabric may be formed in the belt direction so that banner cutting is eliminated. This makes it possible to make an endless belt with only one splice.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: July 16, 1996
    Assignee: Wellington Sears Company
    Inventor: Donald T. Wall