Film retriever
US4047653A · kind A · utility
10Cited by
4References
2Claims
0Family size
Inventor
Key dates
| Filing date | Feb 23, 1976 |
| Grant date | Sep 13, 1977 |
| Priority date | — |
| Expiry date | Feb 23, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/30
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Device for retrieving the free end of a roll of film from a film cartridge; curved inner and outer jaws are movable with respect to one another. The operation involves inserting the jaw ends into the cartridge, rotating the film within the cartridge until the free end is between the jaw ends, and grasping the film with the jaw ends.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.