Patents by Inventor Jonathan George Cordy Angel

Jonathan George Cordy Angel 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).

  • Mechanisms for transporting strip material
    Patent number: 3934962
    Abstract: A film transport has an intermittent drive mechanism with a claw for engaging sprocket holes in a film. The claw is driven by the mechanism to pull the film down frame by frame. Two or more cams are used to cause the claw to carry out a four-sided motion with a fast pull-down action. One of the cams or an additional cam may be provided to render the claw operative to effect pull-down at alternately long and short dwell intervals proportioned to allow scanning of a film frame by different numbers of complete television fields.
    Type: Grant
    Filed: February 8, 1974
    Date of Patent: January 27, 1976
    Assignee: Colourvision Associates
    Inventors: John Thurston Taylor, Anthony James Halliday, Jonathan George Cordy Angel, Bernard Blakemore