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.

Date of Patent:
Mar. 25, 1997

Filed:

May. 18, 1995
Applicant:
Inventor:

Beth A O'Leary, Rochester, NY (US);

Assignee:

Eastman Kodak Company, Rochester, NY (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ; G03B / ;
U.S. Cl.
CPC ...
396409 ; 396410 ; 396284 ;
Abstract

A mechanism and method used by photographic systems to determine when film has been completely rewound into a film cartridge so that other operations involving the film cartridge can occur, for example, aligning a visual indicator with an appropriate visual exposure icon visible on exterior of a film cartridge. Preferably, the mechanism and method of the present invention are for use in photographic systems that accept film cartridges having a radial bar code contained on a data disk and means for aligning a visual indicator with an appropriate visual icon. The mechanism and method are characterized in that during rewinding of the film, sensing the leading edge of the film causes the number of film spool rotations to be counted. After a predetermined number of rotations have occurred, it is presumed that the film is completely rewound on the film spool and, as a result, a predetermined parking sequence can be initiated.


Find Patent Forward Citations

O'Leary, Beth. (1997). Mechanism and method for determining when photographic film has been (U.S. Patent No. 5614971). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5614971

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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