X-ray film holding apparatus providing tight contact between fil

Details X-ray film holding apparatus providing tight contact between fil X-ray film holding apparatus providing tight contact between fil

1986-11-26

1988-11-01

Church, Craig E.

X-ray or gamma ray systems or devices

Photographic detector support

Sheet film cassette

378182, G03B 4204

Patent

active

047825057

ABSTRACT:
An X-ray film holding apparatus includes front and rear plates through which X-rays transmit. The front and rear plates respectively have opposite surfaces. The front plate is flexible, and the opposite surface of the front plate has a partial spherical portion extending toward the rear plate. The spherical surface is curved along a first direction and a second direction perpendicular to the first direction. The front plate is rectangular, and its three sides are supported by a holding frame. An elastic cushion member is adhered to the opposite surface of the rear plate. The cushion member has a surface opposite to the front plate. The opposite surface of the cushion member has a partial cylindrical surface extending toward the front plate. The cylindrical surface is curved along the first direction and parallel to the second direction. Intensifying screen sheets are respectively adhered to the opposite surfaces of the front plate and the cushion member. The holding frame and the rear plate come close to or are separated from each other. An X-ray film can be tightly held between the front plate and the cushion member.

REFERENCES:
patent: 2056279 (1936-10-01), Kulik
patent: 3870889 (1975-03-01), Schmidt
patent: 4032790 (1977-06-01), Nakamura
patent: 4081686 (1978-03-01), Nieuweboer
patent: 4198009 (1980-04-01), Turner
patent: 4538294 (1985-08-01), Tamura et al.

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