US PATENT SUBCLASS 315 / 225
.~ Periodic switch cut-out

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

209 R  DF  PERIODIC SWITCH IN THE SUPPLY CIRCUIT {11}
225.~ Periodic switch cut-out

DEFINITION

Classification: 315/225

(under subclass 209) Systems having means provided for rendering the periodic switch inoperative to interrupt the circuit when it is so desired.

(1) Note. The means provided may be means to hold the contacts of the periodic switch in circuit closing position or to close a shunt circuit about the switch.