Patents by Inventor William Francis Lechtenberg

William Francis Lechtenberg 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).

  • Aerolift mechanism
    Patent number: 5829714
    Abstract: A free movement, lift mechanism employing a spinning disc utilizing Bernoulli's Theorem and the derivative Coanda and Couette effects augmented by centrifugal force. Lift control is provided by variation in rotational velocity of the disc, by variation in the width of a Couette space and by variation in the amount of air entering the Couette space. Strategically placed vanes provide stabilizing control.
    Type: Grant
    Filed: December 29, 1997
    Date of Patent: November 3, 1998
    Inventor: William Francis Lechtenberg