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:
Nov. 08, 1994
Filed:
Dec. 07, 1992
Koichi Takahashi, Kanagawa, JP;
Kiichiro Kitagawa, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A photographic film cassette has photographic film wound on a spool and contained in a cassette shell. Rotation of the spool in the unwinding direction causes a leader to advance through a passageway and exit from a passage mouth. The passageway is defined by a pair of opposed inside faces. The first inside face confronts the emulsion surface of the photographic film, and the second inside face confronts its back surface. A separator claw is formed adjacent to the first inside face, and separates the leader from the roll. The separator claw is formed to project only to a small degree so that the photographic film is prevented from being rubbed and scratched thereby, even when the diameter of the roll is minimized. In a preferred embodiment, a camera for use with such a leader-advancing cassette has a receiving port, which is open to the inside of a cassette receiving chamber, and receives the photographic film as exited from the cassette. A front wall of the receiving port is formed so as to prevent the photographic film from being rubbed and scratched by the first inside face of the cassette.