Temperature control apparatus for use in investigating specimens

Details Temperature control apparatus for use in investigating specimens Temperature control apparatus for use in investigating specimens

1976-06-11

1977-08-30

Serwin, R.E.

Chemistry: physical processes

Physical processes

Crystallization

23292, 219413, 219428, 219530, 236 3, 237 3, F27D 1100, B01L 702, B01L 906, G01N 110

Patent

active

040451798

ABSTRACT:
The apparatus comprises a turntable carrying, in a circular array centered on a central rotational axis of the turntable, a plurality of vials extending below the underside of the turntable. A stepper motor imparts stepwise rotational motion to the turntable so that during dwell periods of the turntable, specimens in the vials can be investigated optically.
Air in a space below the turntable and bounded laterally and at the bottom by an enclosure is circulated by a rotating vane, and a thermistor, responsive to the temperature in the region of the vials, controls a heater in the space below the turntable so as to maintain the temperature of the vials at a predetermined value.

REFERENCES:
patent: 3057603 (1962-10-01), Isreeli
patent: 3511613 (1970-05-01), Jones
patent: 3549330 (1970-12-01), Jungner et al.
patent: 3634651 (1972-01-01), Siegel

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