Film feeding system of a camera
USRE32850E · kind E · reissue
0Cited by
11References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1989 |
| Grant date | Jan 31, 1989 |
| Priority date | — |
| Expiry date | Jan 31, 2009 |
Classification
- Technology area (CPC —)General
Abstract
A film advancing system of a camera in which a roll of film inside a film cartridge is first wound to a spool and then the film is rewound into the cartridge one frame from another after each photographic operation is provided. The system includes a reversibly rotatable motor the drivement and rotational direction of which are automatically controlled depending upon various conditions of the camera to implement required advancement of the film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.