Photographic film cartridge

Winding – tensioning – or guiding – Coil holder or support – Spool or core

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

354275, G03B 102

Patent

active

050837214

ABSTRACT:
A photographic film cartridge typically including a cartidge case having a longitudinal axis, opposite end walls and a film outlet for feeding the film out; a spool extending substantially coaxially with respect to the cartridge case and carried at the opposite end portions by the opposite end walls of the cartridge case for rotation about the longitudinal axis of the spool, the spool being capable of being rotated from outside of the cartridge case; a film wound into a roll on the spool with an end of the film connected with the spool; a slidable cover provided on the cartridge case for slidably moving along a surface of the cartridge case toward the direction inclined to the film feeding direction to slide toward the direction to open and shut the film outlet, and further including device for keeping the film tightly wound into a roll on the spool, whereby the tip end of the film can be fed out hrough the film outlet by rotating the spool in the direction opposite to the film winding direction.

REFERENCES:
patent: 2153573 (1939-04-01), Kinloch
patent: 2622819 (1952-12-01), Goldhammer
patent: 3323743 (1967-06-01), Landgraf
patent: 3383068 (1968-05-01), Winkler et al.
patent: 3386357 (1968-06-01), Kremp et al.
patent: 3695160 (1972-10-01), Stockdale
patent: 4138068 (1979-02-01), Kinoshita
patent: 4218032 (1980-08-01), Nagel et al.
patent: 4221479 (1980-09-01), Harvey
patent: 4302102 (1981-11-01), Stark et al.
patent: 4482232 (1984-11-01), Engelsman et al.
patent: 4832197 (1989-05-01), Hara
patent: 4889292 (1989-12-01), Loewe et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Photographic film cartridge does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photographic film cartridge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photographic film cartridge will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1855773

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.