Patents by Inventor John E. Callahan

John E. Callahan 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: 8690180
    Abstract: A towing adapter can be used during towing of an airplane. The adapter is made of rigid steel with a rubber under-coating and includes two Velcro straps. The device is strapped to two folding struts that are folded down from the wheel assembly of the aircraft. It has a specific angle that keeps the struts at a certain angle with respect to each other, so that struts are accessible to users and is prevented from falling down and injuring someone or causing damage. The device can be easily removed when the towing is finished, and the struts are folded back up onto the plane.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: April 8, 2014
    Assignee: HG Aircraft Products LLC
    Inventors: Ronald R. Baade, John E. Callahan, Gary C. Good