Patents by Inventor Axel P. Hillesheim

Axel P. Hillesheim 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).

  • Arrow master-straightener/conditioner
    Patent number: 4623410
    Abstract: The invention disclosed teaches an arrow straightening machine which includes a nock or head alignment bearing attachment which allows for correction of any eccentricity or misaligmnent between the nock or head and the arrow shaft. The method discloses adhesively bonding the nock or head to the arrow shaft using the attachment device to align while the adhesive is in the unset condition.
    Type: Grant
    Filed: December 22, 1983
    Date of Patent: November 18, 1986
    Inventors: Axel P. Hillesheim, Andrew M. Bray