Electric heating – Metal heating – Of cylinders
Patent
1977-09-07
1979-09-18
Grimley, Arthur T.
Electric heating
Metal heating
Of cylinders
34 1, 210 69, 219 1055F, 426417, H05B 906
Patent
active
041684184
ABSTRACT:
Apparatus for rendering material like edible and inedible meat products and blood characterized by a cabinet having at least one and preferably a plurality of elongate paths for traversal of material longitudinally thereof, an endless perforate belt traversing over rollers and along the elongate path for carrying the material therealong in moving bed fashion; the cabinet having walls surrounding the path formed of material that reflects microwave energy and the belt including at least a portion of a material that reflects the microwave energy and coacting with the walls to reflect microwave energy such that multiple passes of the microwave energy through the material is effected for more efficient use. A plurality of microwave energy input stations are employed with the microwave input wave guides being inclined at respective critical angles so as to effect repeated passes of the microwave energy through the material; particularly acute angles .theta. and obtuse angles .beta. to obtain more intense rendering over at least one region between the oppositely directed microwave inputs. Respective material inlets, drain means for fat and water, water vapor removal and discharge means for discharging the rendered product exteriorly of the cabinets are also included. Also disclosed is the method employing the apparatus.
REFERENCES:
patent: 3078287 (1963-02-01), Downing
patent: 3532511 (1970-10-01), Binkerd et al.
patent: 3614365 (1971-10-01), Lane
patent: 3748421 (1973-07-01), Peterson
patent: 3858022 (1974-12-01), Smith
patent: 3961568 (1976-06-01), Jeppson
patent: 4045879 (1977-09-01), Witte
patent: 4050162 (1977-09-01), Candor
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