Apparatus for precisely regulating the paraffin temperature in a

Electric heating – Heating devices – Combined with container – enclosure – or support for material...

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219331, 219435, 219494, 219513, 219523, H05B 306

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active

043563856

ABSTRACT:
Apparatus for precisely regulating the paraffin temperature in an electrically heated tissue processor comprises a sensor which is detachably fastened to the tissue processor by a clamp so as to be partially immersed in the paraffin. A controller, coupled to the sensor, and coupled in series with the tissue processor heating element by a plug tap across a source of alternating current voltage, is responsive to the conduction state of the sensor and controls the delivery of power to the tissue processor heating element in accordance with the paraffin temperature as sensed by the sensor.

REFERENCES:
patent: 2414793 (1978-11-01), Colman
patent: 2824942 (1958-02-01), Engelhardt et al.
patent: 3189728 (1965-06-01), Schneider
patent: 3511970 (1970-05-01), Kjellberg
patent: 4307287 (1981-12-01), Weiss
SCR Manual, Sixth Edition, General Electric Co., p. 223.

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