Patents by Inventor Frank Kalman

Frank Kalman 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: 6164683
    Abstract: A trailer is provided that is especially suited for transporting bicycles and has load supporting, suspension, storage, parking, and rolling functions. The trailer has a main frame providing a trailer bed, adapted to support a plurality of bicycles, and a high performance suspension system. The suspension system includes a pair of independent suspension units including trailer wheels mounted by suspension arms on opposite sides of the main frame for elevational movement in earth traversing positions and for pivoting movement between the earth traversing positions disposed outwardly of the sides of the main frame and stowing positions folded under the main frame. The suspension units include heavy duty shock absorbers that cushion the bicycle or other load, maintain the bicycles in level upright positions during earth traversal, and maximize traction of the wheels.
    Type: Grant
    Filed: January 8, 1998
    Date of Patent: December 26, 2000
    Inventor: Frank Kalman
  • Patent number: 5941542
    Abstract: A lightweight, low profile trailer especially suited for transporting bicycles. The trailer includes pivotally interconnected upper load supporting and lower suspension frames which have load supporting, suspension, storage, and parking functions. Bicycle supports and clamps are mounted for and aft on the load supporting frame. The suspension frame is located under the load supporting frame in the earth-traversing mode of the trailer and is pivoted for upward and downward movement. Trailer wheels are mounted on opposite sides of the lower frame for movement between ground-engaging positions disposed outwardly of the sides of the upper frame and stowing positions folded under the lower frame. A shock absorber is interposed the upper and lower frames intermediate the wheels for resiliently cushioning the upper frame and thus bicycles thereon during earth traversal of the trailer.
    Type: Grant
    Filed: July 23, 1996
    Date of Patent: August 24, 1999
    Inventor: Frank Kalman