Optics: motion pictures – Camera and/or projector drive mechanisms – With continuous feed and intermittent film arresting means
Patent
1995-06-06
1996-10-01
Gellner, Michael L.
Optics: motion pictures
Camera and/or projector drive mechanisms
With continuous feed and intermittent film arresting means
352130, 15214, G03B 100, A47L 106
Patent
active
055614833
ABSTRACT:
In a rolling loop motion picture apparatus, such as a projector or camera, the movie film is pressed against a film supporting surface disposed within a light path. In order to be cleaned, the film supporting surface is moved out of the light path to an inoperative position opposite a sheet of material formed of an inert polyurethane material to which particulate contaminants adhere. The sheet is moved into contact with the film supporting surface, whereby the particulate contaminants adhere to the sheet. Then the sheet is retracted from the film supporting surface, along with the particulate contaminants. The film is guided between fixed and movable guide surfaces. The movable guide surface is spring-biased downwardly against the top edge of the film and is constrained against horizontal movement.
REFERENCES:
patent: 3914035 (1975-10-01), Satterfield
patent: 4114996 (1978-09-01), Shaw
patent: 4365877 (1982-12-01), Shaw
patent: 4441796 (1984-04-01), Shaw
Article: "Particle Transfer Technology and Hardware", FPC (a Kodak Company), CA. no date.
Johnson Neil A.
Miller Cy
Gellner Michael L.
Miller Matthew
LandOfFree
Method and apparatus for providing and cleaning a film support s does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for providing and cleaning a film support s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for providing and cleaning a film support s will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1505654