Patents by Inventor David S. Ruprecht

David S. Ruprecht 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).

  • Pneumatic return for foot pedals associated with percussion instruments
    Patent number: 4945802
    Abstract: A pneumatic foot pedal assembly for percussion instruments such as bass drums and hi-hat stands. The assembly permits adjustable mounting of a drum beater bar, foot pedal and drive chain while providing automatic return of the pedal to a neutral position by means of gas compressed upon depression of the pedal. Gas pressure within the pneumatic return mechanism is also adjustable. There is further optionally provided a substantially identical pneumatic unit for damping the return movement of both the drum pedal and hi-hat stand.
    Type: Grant
    Filed: January 11, 1989
    Date of Patent: August 7, 1990
    Inventor: David S. Ruprecht