US PATENT SUBCLASS 314 / 2
.~ With current-shifting switch


Current as of: June, 1999
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314 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES: CONSUMABLE ELECTRODES

1  DF  AUTOMATIC SUBSTITUTION OF DISCHARGE DEVICE, ELECTRODE OR LAMP {3}
2.~ With current-shifting switch


DEFINITION

Classification: 314/2

(under subclass 1) Subject matter having an electric switch which is automatically operated in response to the failure of the first operated discharge device, lamp or electrodes to

complete the circuit to the second operated device or electrodes.

SEE OR SEARCH THIS CLASS, SUBCLASS:

15, 16 and 17 and indented subclasses, for discharge devices, and systems under the class definition provided with an automatically operated electric switch means for completing an electrical circuit in shunt about the discharge device or some part thereof, and/or to open the electric circuit of the discharge device or some part thereof, such switch means being automatically operated in response to some condition of the discharge device which prevents further normal operation of the discharge device.

SEE OR SEARCH CLASS

200, Electricity: Circuit Makers and Breakers, appropriate subclasses, for electric switches of general application especially

47, for limit switches. 315, Electric Lamp and Discharge Devices: Systems,

93, for miscellaneous electric lamp and/or electric space discharge device systems which are provided with an automatically operating electric switch for substituting another lamp, discharge device, or electrode when the first operated lamp, discharge device or electrode fails to operate properly.

335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,

2, for electromagnetically actuated switches.