(under subclass 32) Subject matter having an electrode of the load device formed so as to function as an inductance.
(1) Note. The devices in this subclass may include a separate capacitor to form a resonant or tuned circuit, and may include a magnetic field generating means (the device may be a magnetron). Where an electrode is formed so as to provide distributed inductance and capacitance (e.g., cavity resonator) and the device is designed to operate in a magnetic field, see subclasses 39.51+. This subclass (40) includes somewhat similar devices having an electrode formed so as to provide distributed inductance and capacitance and where the device is not designed to operate in a magnetic field. See subclass 42 where the device has separate inductor connected between different anodes or different cathodes with or without a capacitor (e.g., to form a resonant circuit) or a magnetic field producing means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
4+, for cathode-ray tubes having a part thereof formed so as to function as an inductance or as an inductance and capacitance (e.g., hollow resonator, waveguide).
39+, for this subject matter where the device having the distributed inductance is a transmission line having distributed parameters (e.g., waveguide, coaxial cable, etc.).
39.51, for this subject matter where an electrode is formed to provide a structure having distributed inductance and capacitance (e.g., a resonator) and an electromagnetic device is provided for subjecting the discharge space to a magnetic field (e.g., magnetrons). See (1) Note, above. 42, for discharge devices which are provided with a plurality of anodes or a plurality of cathodes and a separate inductor connected between at least two of the anodes or between at least two of the cathodes. See (1) Note, above.
62, and the subclasses specified in the notes to the definition of that subclass, for other patents wherein an inductive impedance is structurally combined with a discharge device.
SEE OR SEARCH CLASS
313, Electric Lamp and Discharge Devices,
155, for lamps and discharge devices which have an electrode designed to generate a magnetic field.
