(under the class definition) Systems having a plurality of load devices connected in the system.
(1) Note. Where the claimed system includes a plurality of
lamps or discharge devices and one is connected in the circuit so as to control or modify the current flow to the other which is the ultimate load device in the system, or where a lamp or discharge device is connected in the control circuit of the discharge control discharge device where the load device is a discharge control discharge device, the patent is classified as a plural load device system where the controlling and/or modifying device is a lamp or discharge device whose operation depends upon gas or vapor ionization even though the system is claimed as having only one ultimate load device. Where the controlling and/or modifying device is claimed, merely as a discharge device, even though it is disclosed as a gaseous ionization discharge device, the controlling and/or modifying device is not considered to be a load device for the purpose of classification.
SEE OR SEARCH THIS CLASS, SUBCLASS:
35, and indented subclasses, for devices which include a plurality of discharge device units and an electrical circuit element which are all structurally combined in a unitary device.
46, for devices which include an electric lamp of the filament type and a discharge device unit structurally combined in a unitary device, the lamp being connected in shunt to the discharge electrodes.
49, for devices which include an electric lamp of the filament type and a discharge device unit structurally combined in a unitary device, the lamp being connected in series relation to the discharge electrodes. 64, and indented subclasses, for multiple filament lamps structurally combined with a circuit element.
88, for systems with means to automatically substitute another load device when the operating load device fails.
95, for plural discharge device load device systems, the discharge devices having heatable cathodes, and the system including means to supply current to the cathodes or cathode heaters.
113, and indented subclass, for plural load device systems provided with means for modifying the temperature of the load devices.
121, and indented subclass, for plural load device systems with automatically operating means to close a shunt circuit about or to open the circuit of one or more of the load devices.
130, for plural load device systems provided with a signal indicator or alarm.
137, and indented subclasses, for polyphase alternating
current plural load device systems.
152, and indented subclasses, for plural load device systems which include a radiant energy sensitive device (photocell).
161, and indented subclasses, for plural load device systems wherein there are a plurality of sources of current supply for the load devices.
177, where there is one load device in the secondary of the supply transformer and another in the primary circuit.
178, and indented subclasses, for plural load device systems wherein two or more of the load devices are of the diverse types. 184, for systems wherein the load devices are connected between different pairs of paired supply conductors.
185, for plural electrical series connected load devices.
195, and indented subclasses, for plural discharge control discharge device loads with phase shifting means in the discharge control circuits.
201, for plural load device systems with a discharge device or rectifier in the supply circuit of at least one of the load devices.
210, and indented subclasses, for plural load device systems with a periodic switch in the supply circuit of at least one of the load devices.
228, and indented subclasses, for plural load device systems with a condenser in the circuit of at least one of the load devices.
250, and indented subclasses, for plural load device systems supplied with alternating or pulsating current.
288, for three or more wire systems which include a plurality of load devices.
292, 293, and subclass 294, and indented subclasses, for plural load device systems with current or voltage regulating means.
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314, Electric Lamp and Discharge Devices: Consumable Electrodes,
7, and indented subclass, for systems which include a plurality of consumable electrode discharge devices, or a consumable electrode discharge device and a lamp or discharge device of another type.
