# US 5,353,076 A · Photographic camera for various size exposures using one-piece masking blade assemblage

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- Number: US 5,353,076 A
- Document ID: US5353076A
- Status: Granted
- Kind: A
- Application number: 08/111,244
- Filed: 1993-08-24
- Granted: 1994-10-04
- Earliest claimed: 1993-08-24
- Assignees: Eastman Kodak Company
- Inventors: William H. Goddard
- Web page: https://patentgrep.com/patent/US5353076A

## CPC

- G03B 1/50: adjustable or interchangeable, e.g. for different film widths
- G03B 37/00: Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe
- G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D)

## Abstract

A photographic camera capable of taking various size exposures comprises a back frame opening for making a full size exposure on a film in the camera, and respective masking blades supported for pivotal movement between a masking position for masking corresponding portions of the back frame opening to allow only a reduced size exposure to be made on the film and a non-masking position not masking the corresponding portions of the back frame opening to allow a full size exposure to be made on the film. The masking blades are connected via a connecting link having at least one elastic portion which constitutes a living hinge to permit the masking blades to be pivoted between their masking and non-masking positions. Preferably, the masking blades and the connecting link are integral to be one-piece.

## Claims

### Claim 1

A photographic camera capable of taking various size exposures comprises a back frame opening for making a full size exposure on a film in said camera, and masking blades having respective pivot shafts for pivotal movement of said masking blades between a masking position for masking corresponding portions of said back frame opening to allow only a reduced size exposure to be made on the film and a non-masking position not masking said corresponding portions of the back frame opening to allow a full size exposure to be made on the film, and is characterized in that:
said masking blades are connected via a connecting link having a pair of elastic portions which constitute living hinges located proximate said pivot shafts to permit the masking blades to be pivoted between their masking and non-masking positions.

### Claim 2 (depends on 1)

A photographic camera as recited in claim 1, wherein said masking blades and said connecting link are integral to be one-piece.

### Claim 3 (depends on 1)

A photographic camera as recited in claim 1, wherein said pivot shafts are integral with said masking blades to be one-piece.