Photographic film cassette having an openable shutter

Details Photographic film cassette having an openable shutter Photographic film cassette having an openable shutter

1992-11-24

1994-06-07

Gellner, Michael L.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

354277, 242 711, G03B 1726

Patent

active

053194063

ABSTRACT:
A photographic film device includes a cassette shell with a chamber and a spool contained rotatably in the cassette shell. When a spool is rotated, a film leader of a photographic film in the chamber is advanced out of the cassette shell through a film passageway and a film passage mouth. A shutter is provided so as to traverse the film passageway. The shutter is retained by a lock member in a closed position wherein the shutter closes the film passage mouth light-tightly. A separation claw is formed on the shutter so as to peel off the film leader from a film roll. When the photographic film cassette is loaded into a camera, the lock member is first shifted into an unlock position and then the shutter is moved from the closed position into an opened position wherein the photographic film is allowed to pass through the film passageway.

REFERENCES:
patent: 2731894 (1956-01-01), Leitz et al.
patent: 4221479 (1980-09-01), Harvey
patent: 4832275 (1989-05-01), Robertson
patent: 4834306 (1989-05-01), Robertson et al.
patent: 4962401 (1990-10-01), Takahashi
patent: 5031853 (1991-07-01), Jensen
patent: 5083721 (1992-01-01), Okutsu et al.
patent: 5174519 (1992-12-01), Oi et al.
patent: 5187531 (1993-02-01), Ozawa et al.
patent: 5200777 (1993-04-01), Zander

Affiliated with

Also associated with

Rating

Photographic film cassette having an openable shutter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photographic film cassette having an openable shutter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photographic film cassette having an openable shutter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-796318