Patents by Inventor Francisco X. Billini

Francisco X. Billini 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).

  • Gearing for multiple-use bicycles
    Patent number: 4856376
    Abstract: A gearing for attachment to a bicycle which multiplies the revolutions of the main tie rod shaft for each pedal turn through the use of a central shaft connected to the pedals which engages primary sprockets which engage secondary sprockets which in turn engage the internal teeth of a sprocket crown, whose external teeth operate a chain to a rear wheel sprocket.
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: August 15, 1989
    Inventor: Francisco X. Billini