Light and dust seal for camera

Details Light and dust seal for camera Light and dust seal for camera

1991-06-12

1992-08-18

Perkey, W. B.

354288, G03B 1702

Patent

active

051403544

ABSTRACT:
A camera has a rear door which is opened to reveal a cartridge receiving chamber, a pair of substantially parallel film rails located adjacent opposite sides of an exposure opening to support successive lengths of a filmstrip over the exposure opening, and a film take-up chamber. A rigid film pressure plate is connected to the inside of the door to rest against the rails over the exposure opening when the door is closed, to support successive lengths of the filmstrip flat at the exposure opening. According to the invention, a single-piece of resilient compressible opaque material is secured to the inside of the door to form a unitary deformable surface for sealing the cartridge receiving chamber, the exposure opening, and the film take-up chamber against ambient light and dust and urging the pressure plate against the film rails when the door is closed.

REFERENCES:
patent: 1537539 (1925-05-01), Lucas
patent: 3282181 (1966-11-01), Lange
patent: 4384780 (1983-05-01), Bresson
patent: 4469423 (1984-09-01), Bresson
patent: 4641936 (1987-02-01), Harvey
patent: 4766451 (1988-08-01), Fujimura et al.
patent: 4812866 (1989-03-01), Ushiro et al.

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