US PATENT SUBCLASS 315 / 32
COMBINED LOAD DEVICE OR LOAD DEVICE TEMPERATURE MODIFYING MEANS AND ELECTRICAL CIRCUIT DEVICE STRUCTURE

Current as of: June, 1999
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315 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS

32COMBINED LOAD DEVICE OR LOAD DEVICE TEMPERATURE MODIFYING MEANS AND ELECTRICAL CIRCUIT DEVICE STRUCTURE {19}
33  DF  .~> Portable self-contained
34  DF  .~> With antenna
35  DF  .~> Plural discharge device loads {3}
39  DF  .~> Discharge device load with distributed parameter-type transmission line (e.g., wave-guide, coaxial cable) {1}
39.51  DF  .~> Distributed parameter resonator-type magnetron {10}
40  DF  .~> Electrode formed as inductive impedance
41  DF  .~> Inductive impedance connected between electrodes of a discharge device load {3}
46  DF  .~> Filament, electric heater, or resistance in shunt with the discharge electrodes of a discharge device load {2}
49  DF  .~> Filament or electric heater in series with a discharge device load
50  DF  .~> Load device temperature-modifying means combined with or forming circuit impedance means
51  DF  .~> Plural circuit elements {1}
55  DF  .~> Electric generator or piezoelectric device
56  DF  .~> Discharge device load {3}
64  DF  .~> Multiple filament load devices {5}
70  DF  .~> Load device and transformer
71  DF  .~> Load device and impedance
72  DF  .~> Load device and periodic electric switch
73  DF  .~> Electric switch inside evacuated or gas filled envelope
74  DF  .~> Automatic shunt circuit closing or cut-out switch {1}

DEFINITION

Classification: 315/32

(under the class definition) Subject matter, sections (A) and (B).

(1) Note. If any circuit element is not structurally combined with the discharge device structure or the heating and/or cooling means, the patent is classified in the class which provides for the claimed system. Where the claimed system is classified in this class, the patent is classified in this or the indented subclasses, and cross-referenced to the appropriate succeeding subclass. Their mere recitation of the source of potential for the discharge device will not exclude the patent from these subclasses. For the classes which provide for such systems as are excluded from these subclasses, search Class 327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems and the classes and subclasses specified in the main class search notes to that class.

(2) Note. The circuit element may be mounted within or on the base or envelope of the load device where the load device is an electric lamp or electric discharge device designed to operate in a vacuum, or an atmosphere of confined gas or vapor.

(3) Note. Mere electrical heaters which are used only to heat the load device and which are not used as impedances in any circuit other than the heater circuit are not included in this or the indented subclasses.

(4) Note. This and the indented subclasses include the combination of a load device or the load device temperature-modifying means and a circuit element where the load device or the temperature modifying means and the circuit element are formed of separable parts, but are provided with means for fastening or assembling the parts together to form a unitary structure. However, this and the

indented subclasses do not include combinations of a load device with a separable socket or connector which may include a circuit element in the socket or connector. See (8) Note below.

(5) Note. Examples of electrical devices considered to be circuit elements are electric switches, resistances, capacities, inductances, transmission lines, antennas, transformers, and any other circuit elements. (6) Note. The circuit element combined with the load device need not be a circuit element to be used in the circuit of the load device, but may be provided with separate terminals so as to be usable in any desired relation.

(7) Note. This and the indented subclasses include load devices wherein the electrodes and/or the electrode leads are formed so as to function as inductances. This or the indented subclasses do not include load devices wherein the electrodes are formed of resistive material, and no other circuit impedance is combined with the discharge device, except (1) where a discharge device load and an incandescent filament lamp are structurally combined in one device, or (2) where a discharge device load is provided with a resistance heatable cathode or an electric resistance cathode heater device, the incandescent filament or the cathode resistance, or the heater resistance being connected with the discharge device so as to function as an impedance device in the discharge device circuit. This or indented subclasses do not include discharge devices having the only condenser effect formed by the inter-electrode or inter-electrode lead capacity. Such load devices will be found in the classes which provide for electric lamp and discharge device structures.

(8) Note. This and the indented subclasses do not include patents wherein the load device is claimed in combination with a separable socket, receptacle, or connector for the load device, the socket, receptacle, or connector including a circuit element. Such patents are classified as a system in the appropriate system class. Where the load device and the socket or other connector are constructed and arranged with respect for each other, so that the contacts on the load device and socket may be used as switch contacts, the patent is classified in this or the indented subclasses. This and the indented subclasses do not include the combination of a load device and a transmission line or waveguide where the transmission line or waveguide is designed to have an electrical connection with the load device and no part of the transmission line or waveguide is within the envelope or otherwise an integral part of the load device.

(9) Note. The line between this and the indented subclasses and the classes which provide for the structural combination of a plug, socket, or other connector which has structurally combined therewith an electric circuit element is that where the connector is claimed as a part of a lamp or discharge

device, such as the base, and the lamp or discharge device is recited by name only, the patent is classified in the appropriate class which provides for the combined connector and circuit element. For sockets, receptacles, and connectors structurally combined with circuit elements, see the Search Class notes, below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

3, and indented subclasses for cathode-ray tubes which are combined with other circuit elements, all of which are structurally combined therewith to form a unitary device.

SEE OR SEARCH CLASS

200, Electricity: Circuit Makers and Breakers,

51, and indented subclasses and the other subclasses specified in the notes to subclass 51 where the circuit element is an electric switch. (See (9) Note, above.)

314, Electric Lamp and Discharge Devices: Consumable Electrodes, appropriate subclasses for electric discharge devices of the consumable electrode type which are structurally combined with a circuit element.

336, Inductor Devices, 107, and the Notes thereto, for the structural combination of a connector and a transformer or an inductive reactor.

338, Electrical Resistors,

68+, for mechanically variable electrical resistors, and especially subclasses 70+ for such variable resistors in or on a lamp socket, and subclass 219 for fixed resistors in or on a lamp socket or base. (See (9) Note, above.)

361, Electricity: Electrical Systems and Devices,

139+, where the circuit element is an electromagnetic devices and subclasses 271+ where the circuit element is a condenser. (See (9) Note, above.)