(under subclass 312) Systems having two or more discharge device loads in the system.
(1) Note. Where a single lamp or a single discharge device is the ultimate load device, and the system includes an additional lamp and/or discharge device in the circuit which is connected in the circuit so as to control and/or modify the current and/or potential supplied to such single ultimate load device, the patent is classified as a plural load device system if (a) the controlling and/or modifying device is a lamp, or (b) the controlling and/or modifying device is limited in the claims to being a gas or vapor discharge device. Conversely, such a system is not classified as a plural load device system where the controlling and/or modifying device is claimed broadly as a discharge device even though it is disclosed as a gas or vapor discharge device.
The controlling and/or modifying device may be connected in the control circuit of the discharge device where the ultimate load device is a discharge control discharge device, and the same basis of classification is used as is set forth above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
35+, for devices which include a plurality of discharge devices and an electrical circuit element which are structurally combined in a unitary device.
86+, where the system includes means to automatically substitute another source of supply for the discharge devices when the first operated source fails to operate properly. 88, and indented subclasses, where the system includes means to automatically substitute another discharge device when the first operated discharge device fails to operate properly.
95, and indented subclasses, where the discharge devices are provided with resistance heated cathodes or indirectly heated cathodes, and the system includes means to supply current to the cathodes or the cathode heaters.
113, and indented subclass, where the discharge devices are provided with temperature modifying means.
121, and indented subclass, for systems provided with means to complete a shunt circuit about or to open the circuit of one of the discharge devices when the discharge device fails to operate properly.
130, and indented subclasses, for systems provided with a signal, indicator, or alarm for at least one of the discharge devices.
137, and indented subclasses, for polyphase alternating current systems with discharge device load devices.
152, and indented subclasses, where the system includes a
radiant energy sensitive device (photocell).
161, and indented subclasses, where the system includes a plurality of sources of current supply for the discharge devices.
177, where the system includes a discharge device load in the secondary circuit and another discharge device load in the primary circuit of a current supply transformer.
180, and indented subclass, for plural series connected diverse type discharge device load devices.
182, and indented subclass, for plural diverse type discharge device load device systems. 189, and indented subclass, for plural series connected discharge device load devices.
195, and indented subclasses, for plural discharge control discharge device, load device systems which are provided with phase shifting means in the control circuits of the discharge control means.
201, where the system includes an electric space discharge device or rectifier in the supply circuit.
228, and indented subclasses, where the system includes a condenser in the supply circuit.
250, and indented subclasses, where the source of supply is alternating current.
323, where the system includes means to start the discharge devices into operation one after another in sequence.
326, and indented subclasses, for other systems provided with a single discharge device load.
SEE OR SEARCH CLASS
314, Electric Lamp and Discharge Devices: Consumable Electrodes,
7, and indented subclass, for systems which include a plurality of consumable electrode discharge devices.
