Patents by Inventor Robert M. McMahan

Robert M. McMahan 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: 6705674
    Abstract: A seat for a vehicle such as a bicycle comprises a clamp for engaging a seat post of the vehicle and a rigid frame supported by the clamp. The preferred rigid frame includes a first and second lateral bar portions; and a cross-bar portion connecting the lateral bar portions. The rigid frame preferably is mounted by parallel bracket plates pivotally supported by the clamp. In accordance with one preferred embodiment, the seat includes a support web which is coupled to the first lateral bar portion near a first edge, to the second lateral bar portion near a second edge, and to the cross-bar near a third edge. In accordance with another preferred embodiment, the seat includes at least one cushion which at least partially surrounds the lateral bar portions. The invention provides a sturdy, comfortable seat which can either be sold as original equipment or retrofit onto an existing vehicle.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: March 16, 2004
    Inventors: Jeffrey A. McMahan, Robert M. McMahan
  • Patent number: 5079862
    Abstract: An apparatus is disclosed for storing and dispensing cartridges into the tubular magazine of a .22 caliber or other such rifle. The apparatus includes a central chamber section having a central passageway extending therethrough with a plurality of storage passageways radially spaced equidistant from the central passage and equidistant from each other. An upper cap and a lower cap are spring loaded against opposite ends of the chamber by way of a tension spring passing through the central chamber. The upper cap includes a dispensing opening radially aligned with the plurality of dispensing passages. The outer periphery of the dispensing chamber includes a plurality of semi-cylindrical grooves and the inner periphery of the cap includes two detent rib for positioning in the various semi-cylindrical grooves of the chamber.
    Type: Grant
    Filed: April 19, 1991
    Date of Patent: January 14, 1992
    Inventors: Robert M. McMahan, John F. Bertsch, Jr.