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Class Information
Number: 352/225
Name: Optics: motion pictures > Gates > With reciprocating pressure plate
Description: Subject matter including a pressure plate which is cyclically moved in relation to the aperture plate so as to exert an intermittent pressure upon the motion picture film.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5886772 |
Film processing apparatus |
Mar. 23, 1999 |
| 5841514 |
Film advance mechanism for motion picture apparatus |
Nov. 24, 1998 |
| 5640228 |
Scanning exposure slit for an image-recording apparatus |
Jun. 17, 1997 |
| 5565960 |
Scanning exposure slit for a shuttle style film gate |
Oct. 15, 1996 |
| 5328073 |
Film registration and ironing gate assembly |
Jul. 12, 1994 |
| 5328074 |
Film registration gate assembly |
Jul. 12, 1994 |
| 5323193 |
Film trap for a motion picture projector |
Jun. 21, 1994 |
| 5052796 |
Film registration apparatus for a camera and method |
Oct. 1, 1991 |
| 4950071 |
Film registration apparatus and shutter for a camera and method |
Aug. 21, 1990 |
| 4835555 |
Film transport apparatus |
May. 30, 1989 |
| 4744651 |
Device for guiding a film in a cine camera |
May. 17, 1988 |
| 4655566 |
Large film image frame transport mechanism |
Apr. 7, 1987 |
| 4522476 |
Motion picture film gate and registration system |
Jun. 11, 1985 |
| 4353645 |
Negative film carrier |
Oct. 12, 1982 |
| 4227783 |
Device for stopping or fixing moving or mobile components |
Oct. 14, 1980 |
| 3994581 |
Microfilm camera and photographic film handling apparatus with film positioning mechanism |
Nov. 30, 1976 |
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