Photo film cassette having light trapping ribbons in which pile

Details Photo film cassette having light trapping ribbons in which pile Photo film cassette having light trapping ribbons in which pile

1994-04-12

1996-03-26

Stodola, Daniel P.

Winding, tensioning, or guiding

Unwinding and rewinding a machine convertible information...

Cartridge system

2425885, G03B 1726

Patent

active

055014070

ABSTRACT:
A photo film cassette has a spool on which photo film is wound. A cassette shell contains the spool in rotatable fashion. A pair of light-trapping ribbons are respectively mounted inside a photo film passage port in the cassette shell, and prevents ambient light from entering the cassette shell through the passage port. The ribbons are constituted of warp pile fabric woven in a needle loom from warp threads, weft threads, and warp pile threads. A first one of the weft threads is passed under a first one of the warp threads, then passed over a first one of the warp pile threads, and subsequently passed under a second one of the warp threads. The pile fabric is woven so as to symmetrize the first and second warp threads relative to the first warp pile thread. It follows that the ribbons are woven to have the firmly retained warp pile threads that are difficult to drop away from the ribbons.

REFERENCES:
patent: 4834306 (1989-05-01), Robertson et al.
patent: 4846418 (1989-07-01), Fairman
patent: 4928826 (1990-05-01), Shibazaki et al.
patent: 5205506 (1993-04-01), Mizuno et al.
patent: 5206676 (1993-04-01), Mizuno et al.
patent: 5213277 (1933-05-01), Takahashi et al.
patent: 5217179 (1993-06-01), Sugiyama
patent: 5223876 (1993-06-01), Komatsuzaki
patent: 5234176 (1993-08-01), Mizuno
patent: 5275283 (1994-01-01), Akao
patent: 5308009 (1994-05-01), Mizuno
patent: 5332168 (1994-07-01), Shibata et al.
patent: 5381980 (1995-01-01), Enomoto

Affiliated with

Also associated with

Rating

Photo film cassette having light trapping ribbons in which pile does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photo film cassette having light trapping ribbons in which pile , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photo film cassette having light trapping ribbons in which pile will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-911515