Patents by Inventor Ivan Thompson

Ivan Thompson 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).

  • Camera film prewinding using D-shaped film perforations
    Patent number: 7330646
    Abstract: A film camera has a body enclosing a light-tight film space. A film unit disposed in the film space, includes a filmstrip having a longitudinally extending row of uniform perforations. The perforations each have at least one concavely-curved edge extending in a direction transverse to the filmstrip. The film space is substantially free of skives despite prewinding of the filmstrip in the camera, even if the prewinding is at a high-torque level.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: February 12, 2008
    Assignee: Eastman Kodak Company
    Inventors: Michael L. DeCecca, Christopher M. Muir, Douglas H. Pearson, Ivan Thompson
  • Camera film prewinding using D-shaped film perforations
    Publication number: 20070019951
    Abstract: A film camera has a body enclosing a light-tight film space. A film unit disposed in the film space, includes a filmstrip having a longitudinally extending row of uniform perforations. The perforations each have at least one concavely-curved edge extending in a direction transverse to the filmstrip. The film space is substantially free of skives despite prewinding of the filmstrip in the camera, even if the prewinding is at a high-torque level.
    Type: Application
    Filed: July 19, 2005
    Publication date: January 25, 2007
    Inventors: Michael DeCecca, Christopher Muir, Douglas Pearson, Ivan Thompson