Patent · US Expired

Device for automatic removal of a photographic film from a cartridge

US5708905A · kind A · utility

1Cited by
8References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 16, 1996
Grant dateJan 13, 1998
Priority date
Expiry dateOct 16, 2016

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03D13/005
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A device for automatic removal of a photographic film from a cartridge, in which the film is rolled up on a spool. The feed channel for the cartridge is disposed so that the cartridge moves through the channel by its own weight in the direction of its spool axis. The channel has a cross section that permits admission of the cartridge in only one direction. The device includes a mechanism to turn the cartridge into a position in which the spool axis is aligned horizontally. The devices also includes a mechanism for unwinding and separating the film from the spool in a light-impervious housing. A mechanism turns the empty cartridge so that its spool axis is vertical, with a prescribed orientation. A replaceable magazine sequentially collects and orders a plurality of empty cartridges.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.