.~ With heater-unit housing, casing, or support means (e.g., frame and single sheet) {13}
521
.~.~ Including or comprising holding or support means for material to be heated
DEFINITION
Classification: 219/521
(under subclass 520) Subject matter wherein the significant housing, casing or support structure includes broadly defined means whereby an object or material to be heated is supported in heat exchange relationship to a heating unit or units.
(1) Note. Where the material support means is specifically defined classification is above, particularly subclasses 385+ for example, hot plate type heating devices are to be found in subclasses 462+. The significant housing, casing, or support means in subclasses 520+ has for its primary function the housing or support of a heating unit with the resulting combination being adapted for use with devices in general under the class definition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
458+, for planar heating surfaces combined with housed heater units. See also (1) Note, above.
SEE OR SEARCH CLASS
99, Foods and Beverages: Apparatus, appropriate subclasses for heating means combined with a housing means specifically adapted for use in brewing of a beverage or the cooking of food.
338, Electrical Resistors, 226+, for electrical resistors incased, embedded or housed in which the housing may be adapted for supporting an article to be heated.
