Patents by Inventor Frank I. Feldstein

Frank I. Feldstein 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).

  • Retractable bicycle shoe cleat
    Patent number: 4827633
    Abstract: A racing bicycle shoe cleat which has a shoe mounting body (20) containing a contoured cavity (50) with diagonal skewed depressions (52) on the inside mounted to the sole of a bicycle shoe. A pedal retaining member (56) is rotatably attached within the contoured cavity, and spring loaded to protrude, exposing a pedal retaining groove (34). The member (56) retracts into the housing releasing the shoe from the pedal when the shoe is rotated solving the previous problem of shoe release, especially in an emergency.
    Type: Grant
    Filed: January 26, 1988
    Date of Patent: May 9, 1989
    Inventor: Frank I. Feldstein