Patents by Inventor Leon G. Biesiadecki

Leon G. Biesiadecki 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).

  • Phase controlled shuttering system with selectable shuttered and unshuttered modes
    Patent number: 4301476
    Abstract: A shutter for an electro-cinematographic camera has synchronizing provisions to make high-speed exposures during the retrace interval of associated viewing equipment. Provision is also made for rapid change to unshuttered operation without use of a monitor by a positive lock mechanism.
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: November 17, 1981
    Inventors: Patrick N. Keller, Leon G. Biesiadecki