(under the class definition) Systems provided with (1) means for generating a surge of potential which is higher than the potential of the source of supply is provided in the circuit of the load device, or (2) an inductance connected either in electrical series relation or electrical shunt relation to the load device and the source of current supply for the load device.
(1) Note. In many of the systems in this subclass, and indented subclasses, the load device is an electric space discharge device which requires a higher potential to start its operation than to continue its operation after it has been started. Also included are other systems wherein a surge generator or inductance is provided for other reasons.
SEE OR SEARCH THIS CLASS, SUBCLASS:
4, and indented subclasses, for cathode-ray tubes which have structurally combined therewith, so as to form a unitary device, an inductance.
40, for discharge devices or lamps having an electrode formed as an inductive impedance.
41, and indented subclasses, for discharge devices having structurally combined therewith, so as to form a unitary device, an inductive impedance, such impedance being connected between the electrodes of the discharge device. 54, for discharge devices and lamps having a plurality of inductive impedances structurally combined therewith so as to form a unitary device.
62, for discharge devices having an inductive impedance structurally combined therewith to form a unitary device.
103, for systems wherein the load device is a discharge device having a thermionic cathode designed to be heated by the passage of heating current through it, or an indirectly heated cathode having an electric heating means, the system including means to heat supply heating current to the cathode or cathode heater and to delay the application of the discharge potential to the discharge electrodes until the cathode has reached operating temperature, the system also including means to apply a surge of potential to the discharge electrodes when the discharge potential is first connected to the discharge electrodes.
223, where the supply circuit of the load device includes a transformer, the primary circuit of the transformer including a periodic switch and an inductance.
242, and indented subclass, for this subject matter where
there is a condenser in shunt to the load device and the inductance is also included in the circuit.
244, for miscellaneous systems where there is also a condenser in the supply circuit of the load device in addition to the inductance.
258, and indented subclass, for this subject matter where the source of supply current is pulsating and/or alternating.
263, for this subject matter where the load device is an auxiliary starting electrode discharge device, the auxiliary starting electrode circuit including an inductance or a surge generating means.
276, and indented subclasses and the subclasses specified in the notes to the definition of those subclasses, for systems under the class definition having a transformer in the supply circuit of the load device.
283, and indented subclasses, for this subject matter where the load device is supplied with pulsating and/or alternating current.
SEE OR SEARCH CLASS 323, Electricity: Power Supply or Regulation Systems,
355, 363, and the subclasses specified in the notes to the definition of those subclasses for miscellaneous reactor systems and for systems having an inductance for controlling the magnitude of the current and/or voltage in a single circuit.
336, Inductor Devices, appropriate subclasses for the structure of transformers and inductive reactors.
