(under subclass 200) Apparatus including at least two spaced apart electrodes associated with a voltage generating means whereby when voltage is applied from the generating means to the electrodes an electrical discharge is established between the electrodes. The subject matter classified herein includes devices wherein the electrical discharge takes place
directly through a nonmetallic material to be heated as well as apparatus where the electrical arc occurs through air or other gases with the material to be heated confined within the influence of the arc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
121.11+, for miscellaneous heating of metal by an electrical arc produced between opposed electrodes or between an electrode and the metal.
232, for hand held heated tip devices utilizing an internal arc heater unit.
234, for hand held heated tip devices with tip and work in circuit.
284, for liquid heaters with liquid in circuit. SEE OR SEARCH CLASS
250, Radiant Energy,
542+, for electrical arc means specialized for carrying out chemical reactions wherein the electrical energy is more than a mere heating means.
313, Electric Lamp and Discharge Devices, appropriate subclasses for the structure for electric space discharge devices designed to produce an electric arc.
314, Electric Lamp and Discharge Devices: Consumable Electrodes, appropriate subclasses for electric space discharge devices, including arc discharge devices of the consumable electrode type and the circuits for supplying electric current thereto.
315, Electric Lamp and Discharge Devices: Systems, appropriate subclasses, for systems for supplying electric current to arc discharge devices.
373, Industrial Electric Heating Furnaces,
61+, for furnaces in which a charge is heated by means of an electric arc produced between opposed electrodes.
