Film advance mechanism for motion picture apparatus

Optics: motion pictures – Camera and/or projector drive mechanisms – With continuous feed and intermittent film arresting means

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

352222, 352225, G03B 100, G03B 152

Patent

active

058415149

ABSTRACT:
A motion picture apparatus and method for intermittently advancing motion picture film by forced air. The film is initially placed into successive loops formed by a cam-driven flipper. The loops and thus the film are advanced through the projector or camera pathway by a forced air blower which propels the successive loops through a projection pathway. Vacuum pressure may also be applied to the film through a gate to secure the film to the gate with linearly arranged register pins steadying the film over a projection aperture. The film is rewound through the projector by a motorized rewind with a positive pressure applied to the film through the gate.

REFERENCES:
patent: 1299469 (1919-04-01), Holmes
patent: 2747457 (1956-05-01), Wengel
patent: 3007368 (1961-11-01), Rosenbaum
patent: 3065890 (1962-11-01), Fox
patent: 3135159 (1964-06-01), Fabregat et al.
patent: 3214233 (1965-10-01), Persidsky
patent: 3236580 (1966-02-01), Zahn
patent: 3397827 (1968-08-01), Heisler
patent: 3512693 (1970-05-01), Utsumi
patent: 3600073 (1971-08-01), Shaw
patent: 4009949 (1977-03-01), Nupnau
patent: 4039256 (1977-08-01), Teeple, Jr. et al.
patent: 4114996 (1978-09-01), Shaw
patent: 4206981 (1980-06-01), Ozaki et al.
patent: 4420231 (1983-12-01), Gottschalk
patent: 4441796 (1984-04-01), Shaw
patent: 4477160 (1984-10-01), Trumball
patent: 4522476 (1985-06-01), Renold
patent: 4560260 (1985-12-01), Trumball
patent: 4697896 (1987-10-01), Fox
patent: 4835555 (1989-05-01), Maxwell
patent: 5266979 (1993-11-01), Brown et al.
patent: 5341182 (1994-08-01), Schmidt
patent: 5633696 (1997-05-01), Schmidt
Pioneer Corporation Pacer-35 35 mm Projection System data sheet (no date).
Two photographs of Pacer-35 motion picture projector (no date).
Article entitled "Cosmos--A New Video Look" from American Cinematographer (Oct. 1990), pp. 1022-1023.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Film advance mechanism for motion picture apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Film advance mechanism for motion picture apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Film advance mechanism for motion picture apparatus will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1709055

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.