Patents by Inventor John E. Demaree

John E. Demaree 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: 5926662
    Abstract: A simplified trigger, shutter and film advance system such as for use in a camera. In a preferred embodiment the system is mounted in a housing and includes a trigger with a trigger button for pressing by the operator and a trigger point for advancing the film in a film track, a shutter which is simultaneously advanced by the trigger with the film and along a shutter track. In another embodiment suitable for use with 35 mm film, the system is mounted in a camera and includes a simplified trigger, shutter and film advance system which requires fewer components and fewer moving parts than existing cameras and which is operated by pressing the trigger which thereby advances the film and activates the shutter. In yet another embodiment suitable for use with 110 mm film, the system is mounted in a camera and includes a simplified trigger, shutter and film advance, and further includes a one piece mechanism to advance the film and activate the shutter.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: July 20, 1999
    Inventors: Michael S. Demaree, John E. Demaree
  • Patent number: 5724624
    Abstract: A simplified trigger, shutter and film advance system such as for use in a camera. In a preferred embodiment the system is mounted in a housing and includes a trigger with a trigger button for pressing by the operator and a trigger point for advancing the film in a film track, a shutter which is simultaneously advanced by the trigger with the film and along a shutter track, a ramp coupled to the housing which engages the trigger point and causes the film and shutter to release, a spring which is coupled to the housing and the shutter and causes the shutter to return to its original position, and a light baffle to reduce the amount of light exposed to the film when the shutter initially returns to its at rest position.
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: March 3, 1998
    Inventors: Michael S. Demaree, John E. Demaree
  • Patent number: 5387957
    Abstract: A simplified trigger, shutter and film advance system such as for use in a camera. In a preferred embodiment the system is mounted in a housing and includes a trigger with a trigger button for pressing by the operator and a trigger point for advancing the film in a film track, a shutter which is simultaneously advanced by the trigger with the film and along a shutter track, a ramp coupled to the housing which engages the trigger point and causes the film and shutter to release, a spring which is coupled to the housing and the shutter and causes the shutter to return to its original position, and a light baffle to reduce the amount of light exposed to the film when the shutter initially returns to its at rest position.
    Type: Grant
    Filed: June 16, 1993
    Date of Patent: February 7, 1995
    Inventors: Michael S. Demaree, John E. Demaree