Patent
1974-12-23
1977-03-08
Braun, Fred L.
354329, 354345, G03D 308, G03D 1310
Patent
active
040115739
ABSTRACT:
An apparatus for developing dental X-ray film of the dip and dunk type, in which the apparatus is provided with a plurality of processing stations disposed in an arcuate path that is concentric about a vertical axis, which stations comprise loading, developing, rinse, fix, final rinse, drying, and unloading stations, with the developing, rinse, fix, and drying stations being defined by open topped receptacles. The individual films are clipped to special film hangers which are removably suspended from a cantilevered support that rotates intermittently about the said vertical axis, and also is moved vertically to dispose the individual hangers elevationally to move between stations and then lower the hangers into the respective receptacles for the processing to be performed there, in which position the hanger support reciprocates vertically for purposes of agitating the film in its bath. At the drying station, the individual hangers are journaled for rotation about their longitudinal axes at a speed on the order of 3,000 rpm for spin drying of the film.
REFERENCES:
patent: 1466339 (1923-08-01), Plante
patent: 2186891 (1940-01-01), Wilson
patent: 2519337 (1950-08-01), Alberts et al.
patent: 2544644 (1951-03-01), Allen
patent: 2766670 (1956-10-01), Fritts
patent: 3010377 (1961-11-01), Kettler
Braun Fred L.
Rinn Corporation
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