One-time-use camera with film door which when opened to remove f

Details One-time-use camera with film door which when opened to remove f One-time-use camera with film door which when opened to remove f

1997-06-03

1998-06-02

Gray, David M.

Photography

Disposable or recyclable camera

396396, G03B 1702

Patent

active

057615420

ABSTRACT:
A one-time-use camera comprising a film winder wheel rotatable in a film winding direction and a rear cover part with an integral door portion that is to be opened to remove a film cartridge from a cartridge chamber, an integral anti-backup pawl for engaging the film winder wheel to prevent rotation of the film winder wheel in a reverse direction opposite to the film winding direction, and a weakened longitudinal section between the door portion and another portion of the rear cover part that fractures when the door portion is opened, is characterized in that the anti-backup pawl and the door portion are connected to cause the anti-backup pawl to be moved with the door portion when the door portion is opened, and the weakened longitudinal section extends between the anti-backup pawl and the other portion of the rear cover part to fracture between the anti-backup pawl and the other portion, in addition to fracturing between the door portion and the other portion, when the door portion is opened, whereby the anti-backup pawl will be renedered ineffective to prevent reverse rotation of the film winder wheel.

REFERENCES:
patent: 5235366 (1993-08-01), Kucmerowski
patent: 5329330 (1994-07-01), Sakai et al.
patent: 5349410 (1994-09-01), Kamata
patent: 5517270 (1996-05-01), Balling
patent: 5555052 (1996-09-01), Pearson
patent: 5579070 (1996-11-01), Smart et al.

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