Controlled heating unit for extracting solvent from sludge by di

Details Controlled heating unit for extracting solvent from sludge by di Controlled heating unit for extracting solvent from sludge by di

1990-10-16

1992-12-29

Bascomb, Jr., Wilbur

Distillation: apparatus

Apparatus

Systems

202205, 202206, 202233, 202234, 68 18R, 159901, 159DIG26, 203 1, 203 2, 203 3, 203100, 374121, B01D 342

Patent

active

051748649

ABSTRACT:
Controlled heating unit for extracting solvent from sludge by distillation, in particular for dry-cleaning machines, having a sludge tank with a flattened shape which is arranged at the base of a sealed box-like chamber and above which inlets for microwaves generated by a microwave source are present, a mixer for the sludge to be treated, at least one sludge temperature sensor which switches off the microwave source when the sludge reaches a temperature which is proximate to the degradation temperature of the solvent.

REFERENCES:
patent: 3169537 (1965-02-01), Fuhring
patent: 3577322 (1971-05-01), Nesbitt et al.
patent: 3638018 (1972-01-01), Gasper
patent: 3672958 (1972-06-01), McCandlish
patent: 3700565 (1972-10-01), Cornish et al.
patent: 3801274 (1974-04-01), Gleason
patent: 4279704 (1981-07-01), Noble et al.
patent: 4313786 (1982-02-01), Smith
patent: 4313798 (1982-02-01), Myers
patent: 4652143 (1987-03-01), Wickersheim et al.

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