Patents by Inventor G. Cliff Johnson, III

G. Cliff Johnson, III 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).

  • Cam locking removable hitch assembly apparatus and system
    Patent number: 6837511
    Abstract: A cam locking removable hitch assembly apparatus and system is described. The apparatus generally includes a hitch-ball shank in engagement with a shank sleeve that is in engagement with an outer sleeve. A nut is in threaded engagement with a lower portion of the hitch-ball shank securing the outer sleeve around the shank sleeve. Shank lugs, on a lower portion of the hitch-ball shank, engage with shear lugs internal to the shank sleeve when the hitch-ball shank is rotated with respect to the shank sleeve. Cam's on the upper portion of the hitch-ball shank engage with cam grooves on an upper portion of the shank sleeve, thereby locking the hitch-ball shank within the shank sleeve. The hitch assembly apparatus can be connected to a frame that is secured in a bed of a truck forming a cam locking removable hitch assembly system.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: January 4, 2005
    Inventor: G. Cliff Johnson, III