Patents by Inventor Herbert D. Van de Pol

Herbert D. Van de Pol 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).

  • Shoulder strap attachment
    Patent number: 4936495
    Abstract: A device for attaching a shoulder strap to a fabric wall of a backpack comprising a pair of flexible reinforcing fabric members positioned orthogonally to each other and on either side of one end of the shoulder strap and further including stitches implemented in a box stitch pattern which secure one of the fabric members to the strap and additional stitches securing the strap, both fabric members and the fabric wall of the backpack together.
    Type: Grant
    Filed: February 13, 1989
    Date of Patent: June 26, 1990
    Assignee: Wenoka Seastyle
    Inventor: Herbert D. Van de Pol
  • Swim fin
    Patent number: 4820218
    Abstract: A swim fin having an elongated flexible blade. The blade has elongated tapered sleeves to hold elongated tapered battens. The battens selectively stiffening the blade to achieve varying degrees of stiffness according to the wear's strength. Each batten has a tab to function to prevent the batten from sliding entirely within the sleeve and to function as a grip for easy removal of the batten from the sleeve. Additionally, the fin has ribs with concave outer walls which assist in the smooth flexing of the fins when used.
    Type: Grant
    Filed: December 11, 1987
    Date of Patent: April 11, 1989
    Assignee: Wenoka Seastyle
    Inventor: Herbert D. Van de Pol