Film gate assembly for use in a motion picture assembly

Optics: motion pictures – Gates

Reexamination Certificate

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Details

C352S224000

Reexamination Certificate

active

06997557

ABSTRACT:
A film trap and gate assembly for use in a motion picture projector is described. The film trap includes an image aperture and a first and second trap rail assembly. The film trap further includes a stripper plate having an angled stripper blade attached to an attachment flange. The stripper blade is attached to the attachment flange at an at least one degree angle, preferably biased towards the trap body. The film gate includes a projection aperture and a first and second gate rail assembly. A film tensioning assembly is attached to the gate body, the film tensioning device having a deformable body disposing at least two tensioning rollers, and an adjustable tensioning device. When assembled, the film trap and gate assembly forms a film movement channel to guide the film past an illumination source, while reducing the contact between the film strip and the film trap and gate assembly.

REFERENCES:
patent: 1473465 (1923-11-01), Clark
patent: 1828768 (1931-10-01), Dina
patent: 1884609 (1932-10-01), Kindelmann et al.
patent: 1991870 (1935-02-01), Schulz
patent: 2211826 (1940-08-01), Kindelmann et al.
patent: 3610744 (1971-10-01), Kakiuchi et al.
patent: 3700318 (1972-10-01), Cunningham, Jr.
patent: 3752569 (1973-08-01), Nelson et al.
patent: 3776626 (1973-12-01), Lewis
patent: 3954330 (1976-05-01), Sakaguchi et al.
patent: 4144991 (1979-03-01), Eddy
patent: 4522476 (1985-06-01), Renold
patent: 4744651 (1988-05-01), Beauviala
patent: 4778093 (1988-10-01), Renold
patent: 5258807 (1993-11-01), Reinke
patent: 5323193 (1994-06-01), Weisman
patent: 5461492 (1995-10-01), Jones
patent: 5596380 (1997-01-01), Ozaki et al.
patent: 5701171 (1997-12-01), Roy et al.
patent: 5875020 (1999-02-01), Kitten et al.
patent: 6081293 (2000-06-01), Brown et al.
patent: 6137530 (2000-10-01), Brown
patent: 6457827 (2002-10-01), Groaser
patent: 686562 (1939-12-01), None

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