Patents by Inventor William Andrew Bergstresser

William Andrew Bergstresser 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).

  • Patent number: 5721960
    Abstract: Apparatus is disclosed for loading and unloading a photographic camera (426) of a type including an external housing (428, 478) having a movable closure (484) giving access to a film guide track (566) within the camera, the guide track extending between an unexposed film chamber (562) and an exposed film chamber (564), the apparatus including a light tight housing (12, 14, 18); a source (24) for unexposed photographic film positioned within the light tight housing; a nest (74) for receiving a camera within the light tight housing; film loading device (72) extending between the source and the nest for guiding film from the source into the film guide track within the camera; a film unloading device ((82) for guiding film from the camera; a cutter (84) for cutting exposed film unloaded from the camera; a device (292, 708, 710, 878) for driving film from the source, along the loading device and into the camera; and a device (584, 602, 708, 710, 874) for driving film from the camera along the unloading means to th
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: February 24, 1998
    Assignee: Eastman Kodak Company
    Inventors: Dennis Roland Zander, Paul Teremy, William Andrew Bergstresser, Eric Peschan Hochreiter, Scott Howard Schwallie
  • Patent number: 5689745
    Abstract: An apparatus is disclosed for loading a photographic camera (426) of a type including an external housing (428, 478) having a movable closure (484) giving access to a film guide track (566) within the camera, the guide track extending between an unexposed film chamber (562) and an exposed film chamber (564), the apparatus including a frame (12); a source (24) for unexposed photographic film positioned on the frame; a nest for receiving the camera supported on the frame; a film loading device (72) extending between the source and the nest for guiding film from the source into the film guide track within the camera; a film unloading device (82) extending away from the camera; and means for driving film from the source, along the loading device and into said camera and for driving film from the camera along the unloading device. Corresponding methods also are taught.
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: November 18, 1997
    Assignee: Eastman Kodak Company
    Inventors: Dennis Roland Zander, William Andrew Bergstresser, Bradley S. Bush, Eric Peschan Hochreiter, Jeffrey Charles Robertson, Paul Teremy
  • Patent number: 5655155
    Abstract: Apparatus (610) is disclosed for opening and closing a photographic camera (426) of a type including an external housing (428, 478) having a slidable closure (484) giving access to a film guide track (566) within the camera, the closure including an externally accessible slot (636), the guide track extending between an unexposed film chamber (562) and an exposed film chamber (564). The apparatus may include a frame (12); a nest (74) supported on the frame for receiving a camera; and a door opening mechanism (612-646) supported by the frame, the mechanism including a member (632, 634) for engaging the slot and an actuator (616, 628) for moving the member to open the closure.
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: August 5, 1997
    Assignee: Eastman Kodak Company
    Inventors: William Andrew Bergstresser, Eric Peschan Hochreiter, Paul Teremy, Dennis Roland Zander
  • Patent number: 5649258
    Abstract: Apparatus is disclosed for actuating and testing a camera (426) of a type including a shutter trigger button (438) and externally accessible features (476, 508, 526, 530) for moving film within the camera. The apparatus may include a support frame (12); a nest (74) supported by the frame, the nest having a base (410) and walls (420, 422, 424) for guiding a camera into position on the base; a device (664-668) associated with the nest for depressing the trigger button to actuate and test a shutter mechanism of a camera; and camera drive mechanism (584-604) associated with the nest for engaging and operating the device for moving to drive exposed film from the exposed film chamber to the unexposed film chamber and then drive exposed film from the unexposed film chamber along the film guide track and out of the camera.
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: July 15, 1997
    Assignee: Eastman Kodak Company
    Inventors: William Andrew Bergstresser, Eric Peschan Hochreiter, Dennis Roland Zander, Bradley S. Bush