Patents by Inventor Russell K. Shields

Russell K. Shields 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: 3942823
    Abstract: In combination with a tractor for towing a vehicle wherein the tractor includes a chassis upon which is secured a driving wheel assembly, the tractor including a motor for rotating the driving wheel assembly, an attachment for connecting the tractor to the vehicle, the attachment usable in two different modes to connect to the vehicle, the first mode using a horizontal connecting member pivotally mounted upon the chassis, so that the pivot axis intersects the tractor's drive wheel axis and is located midway between the driving wheels, the horizontal connecting member to cooperate in a telescoping manner within a tubular member secured to the vehicle, a pin insertable within aligned apertures between the connecting member and the tubular member to lock such together, the second mode employing a ball mounted upon the connecting member which is to cooperate with a conventional ball socket attached to the vehicle, a clamp bar employed to lock the connecting member to the tubular member.
    Type: Grant
    Filed: May 15, 1974
    Date of Patent: March 9, 1976
    Inventors: Morton K. Shields, Russell K. Shields