(under subclass 36) Processes which include the step of heating of the work by (1) subjecting the work to a changing electric field thereby transforming the electric energy into heat due to the resistance of the work to passage of current therethrough, or (2) passage of an electric current directly through the work which constitutes a part of an electrical circuit.
(1) Note. The electrical energy must act directly on the work and not, for example, by convection or conduction of heat from an element not constituting a part of the work.
SEE OR SEARCH CLASS
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,
272+, for processes of adhesive bonding including heating by dielectric loss or by passing current through work which is capable of conducting an electrical current therethrough, and see the reference to other classes under "Search Class" in subclass 272 of Class 156 for related fields of search.
219, Electric Heating,
600+, for inductive heating, subclasses 678+ for microwave heating, and subclasses 764+ for capacitive dielectric heating. 373, Industrial Electric Heating Furnaces,
27+, for a glass furnace reciting specific electrical structure or characteristics, and for a process including manipulation of an electrical glass furnace; see the "Search Notes" thereunder; and see the class line note in Class 65, subclass 134.
