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:
Feb. 21, 1989

Filed:

Nov. 25, 1987
Applicant:
Inventors:

Roger G Covington, Rochester, NY (US);

Bruce R Muller, Rochester, NY (US);

Evan P Carmichael, Rochester, NY (US);

John J Niedospial, Rochester, NY (US);

Assignee:

Eastman Kodak Company, Rochester, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
378182 ; 378185 ; 378187 ; 206459 ;
Abstract

A film sheet presence indicating mechanism is disclosed for use in a photographic cassette, such as an x-ray cassette having one end wall with a slot therein through which a film sheet is moveable therethrough between screens along an inlet path to a loaded position adjacent an opposite end wall. The x-ray cassette has front and rear cover walls joined to the end walls in which the rear cover wall has an inner side facing an inner surface of the front cover. The film sheet presence indicating mechanism comprises a housing secured to the inner side of the rear cover adjacent the opposite end wall to define a cavity. The mechanism further comprises a film sheet presence indicator member that is mounted within the housing cavity for slidable movement between a normal first position indicating the absence of a film sheet in the x-ray cassette, and a second position indicating that a film sheet is loaded in the cassette.


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