Film processor for instant type transparency film
US4309100A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1980 |
| Grant date | Jan 5, 1982 |
| Priority date | — |
| Expiry date | Nov 17, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03D9/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Apparatus for processing an exposed roll of instant or self-developing type transparency film. The apparatus includes structure for supporting a film cassette containing an exposed roll of film, a spool having an elongate strip of sheet material wound thereupon, and a take-up reel which is adapted to receive an end of the exposed film and the sheet material and which is adapted to be rotated so as to wind the exposed film and the sheet material thereupon in superposed relation as a processing composition is being coated upon the sheet material so as to initiate the formation of visible images in the film. The apparatus also includes means for separating the film which is to be wound upon the take-up reel from its attachment to the film cassette's spool prior to stripping the sheet material from the film while simultaneously guiding the latter to the exterior of the apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.