Patents by Inventor Denver C. Wolford

Denver C. Wolford 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: 4723630
    Abstract: An integrated tree climbing apparatus. The apparatus is in the form of a chair stand comprised of a seat rest and an adjustable foot rest. The two rests are connected to each other in a hinged relationship by supporting arms which extend past and straddle the tree and are engagable with a V-shaped knife clamp to effect a gripping action. The supporting arms are diagonally mounted on the side of the seat and a leg of the foot rest and are angled upward to accommodate the tree. The hinged aspect of the foot rest allows it to be moved to various angles according to the needs of the user. A V-brace is incorporated into the seat rest to complete the clamping structure. The rear V-shaped knife clamp is sheathed on its ends to slide on the supporting arms. Quick-connect linchpins are employed for simplicity and economy. Due to the hinging and pivotal connections of the members, the apparatus easily folds down into a compact unit as a simulated backpack frame for easy portability.
    Type: Grant
    Filed: September 9, 1987
    Date of Patent: February 9, 1988
    Inventors: Denver C. Wolford, Marvin A. Wolverton