Hot water extraction unit having electrical immersion heater

Details Hot water extraction unit having electrical immersion heater Hot water extraction unit having electrical immersion heater

1976-06-21

1977-09-06

Mayewsky, Volodymyr Y.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

15321, 219331, 219441, 219508, 219523, 338239, F27D 1102

Patent

active

040469891

ABSTRACT:
Means for varying the heating rate of an immersion heater in a hot-water extraction unit comprising a solution tank in which an electrical immersion heater is mounted in order to decrease the warm-up time of the unit. In the preferred embodiment, the means comprise (a) a first heating element having a first watt rating; (b) a second heating element having a second watt rating, lower than the first watt rating; and (c) means for selectively actuating one or the other of the two heating elements.

REFERENCES:
patent: RE14286 (1917-08-01), Mann
patent: 2456343 (1948-12-01), Tuttle
patent: 2494333 (1950-01-01), Daly
patent: 2575113 (1951-11-01), Lennox
patent: 2804532 (1957-08-01), Lacy-Hulbert
patent: 2981821 (1961-04-01), Hayes
patent: 3673386 (1972-06-01), Drugmand et al.
patent: 3715567 (1973-02-01), Mandziak
patent: 3732398 (1973-05-01), Pease
patent: 3832526 (1974-08-01), Clausse
patent: 3896521 (1975-07-01), Parise

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