Patents by Inventor David Lysaker

David Lysaker 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).

  • Publication number: 20160059913
    Abstract: A collapsible towing dolly with a rectangular frame for assembly on a driving surface beneath a towed vehicle. Four sides of the rectangular frame cradle a pair of opposing tires on the towed vehicle. The rectangular frame can be adjusted in size to accommodate different towed vehicles. The corners of the rectangular frame flex, so that the frame displaces in parallelogram fashion when pulled around a curve, allowing the towed vehicle to track behind the tow vehicle. The rectangular frame is raised off the driving surface by means of a liftable attachment between the rectangular frame and each of a pair of dolly wheel assemblies. Alternatively, jacks attached to the rectangular frame lift the rectangular frame. The rectangular frame attaches to a standard hitch on the tow vehicle via a tongue assembly removably attached to the rectangular frame.
    Type: Application
    Filed: August 27, 2015
    Publication date: March 3, 2016
    Inventors: Steven Berger, David Lysaker