The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 26, 1996
Filed:
Apr. 12, 1994
Hidetoshi Kawasaki, Minami-Ashigara, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
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.