Film transport apparatus for camera
US4673272A · kind A · utility
13Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 1986 |
| Grant date | Jun 16, 1987 |
| Priority date | — |
| Expiry date | May 19, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/425
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A film transport apparatus having a spool for taking up film as it rotates, a sprocket for pulling the film in engagement with the perforations thereof toward the spool, and a windup drive system for driving the spool or the sprocket. The film transport apparatus is provided with control means for causing the windup drive system to drive both of the spool and the sprocket from the start of an auto-loading until before its termination, and then to drive only the spool at the terminal stage of the auto-loading, and detecting means for detecting that the film is not sent in the terminal stage of the auto-loading.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.