Film cassette

Details Film cassette Film cassette

1994-08-30

1995-09-05

Porta, David P.

X-ray or gamma ray systems or devices

Photographic detector support

Sheet film cassette

378165, 378187, G03B 1726

Patent

active

054486157

ABSTRACT:
An x-ray film cassette having a base and a cover adapted to close upon the base. The cover is provided with an identification window. A pressure plate is secured within the cassette. The cover, pressure plate and base form a light-tight space for receiving a sheet of x-ray film. The pressure plate is also provided with an identification window which is in substantial alignment with the identification window of the cover. A light-tight slideable window shutter is provided for covering of the identification window of the cover and/or the pressure plate. The slideable window shutter, when in a first position, provides a light-tight seal against the windows and when in a second position allows information to be provided to an x-ray film contained within the cassette. An indicator assembly is secured to the pressure plate and is at least partially visible through the cover for indicating when film is present within the cassette and for indicating when the window shutter has been opened.

REFERENCES:
patent: 3630172 (1971-12-01), Neu
patent: 3703272 (1972-11-01), Lareau
patent: 3962585 (1976-06-01), Huettner et al.
patent: 4104528 (1978-08-01), Strax
patent: 4112304 (1978-09-01), Huettner et al.
patent: 4259586 (1981-03-01), Schmidt et al.
patent: 4313538 (1982-02-01), Bauer et al.
patent: 4653888 (1987-03-01), Komamura et al.
patent: 4712228 (1987-12-01), Johnson et al.
patent: 4744100 (1988-05-01), Bauer et al.
patent: 4807271 (1989-02-01), Covington et al.
patent: 4972450 (1990-11-01), Carlile et al.
Patent Abstracts of Japan, vol. 15, No. 20 (p.-1154), Jan. 17, 1991.

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