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Patent No. 5523741

Santa Claus Detector

A Christmas stocking having illumination means associated therewith for signalling the arrival of Santa Claus.

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Class 432 - Heating

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265 Subclasses


Subclasses list

Definition

This is the residual class for apparatus and related methods for the generation of heat and its application to materials; and for subcombinations and adjuncts specialized to such heating.

Note. Patents issued prior to 1945 have not in all instances been classified by their claimed disclosure so the placement of these older patents does not necessarily indicate lines of classification.

Lines with other classes and within this class

A. HEATING FURNACES (I.E., CHAMBER FOR RECEIVING MATERIAL TO BE HEATED AND SUPPLIED WITH HEAT INDEPENDENTLY OF THE CHARGE) AND HEATING FURNACE COMBINATION:

1. Class 266, Metallurgical Apparatus takes the following combinations of a heating furnace with additional structure for a metallurgical purpose:

a. A heating furnace with additional structure for cooling or quenching a solid metal object after heating is in Class 266 if the disclosure is limited to the metallurgical treatment of metals. If the disclosure is generic to metals and nonmetals or if the material has not been specified, Classification is in Class 432. It is noted that glass and ceramic article are commonly "annealed". Accordingly, a disclosure of "annealing" without a specification of material is in Class 432.

b. Those heating furnaces which are limited by disclosure to heating solid metal articles and which have structure for supplying or producing a special atmosphere either protective or treating, are in Class 266. Furnaces not elsewhere provided for having gas supplying or producing means will be found in this (432) Class.

c. A heating furnace in which material is melted having additional structure for the collection of flow, separation, dispensing or mixing of melted metal is in Class 266 when the sole disclosure relates to the handling of metal.

d. A heating furnace in combination with a fume arrester in which the sole disclosure relates to the arresting of metallurgical fume, i.e. of condensate of metallic vapor generated from a charge of metal ore or intermediate metal product, is in Class 266. A residual heating furnace with means separating dust or slag from the furnace discharge is classifiable in Class 432, subclasses 67+.

2. A residual heating furnace not specialized to metallurgical use as indicated above is in Class 432. It is noted that a "reverbatory" furnace or a furnace in which a steel making crucible is heated may be a Class 432 heating subcombination of general utility even though the disclosed charge includes metal or metal ore with reactive ingredients combined therewith or separately fed into the heating chamber.

B. OXYGEN REACTION FURNACES:

A furnace heated by reacting a charge of solid material with gaseous oxygen to produce heat and a chemical transformation of charge material and not having a separate heat generator is in Class 266 when the sole disclosed specific use of the apparatus is to produce metal or an intermediate metal product. It is considered that a "blast furnace," a "cupola furnace," and a "converter" are this type of Class 266 apparatus unless there is a positive indication that the apparatus may be used to treat a specific nonmetal. Also, in the absence of a disclosure that the apparatus of utility in treating nonmetal producing materials, the term "sintering" applied to a furnace treating bulk particulate material with gas is considered to indicate metallurgical apparatus for Class 266.

 
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