US PATENT SUBCLASS 315 / 211
.~.~ Distributor type periodic switch means

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}
210  DF  .~ Plural load device systems {2}
211.~.~ Distributor type periodic switch means {3}
212  DF  .~.~.~> Transformer in the supply circuit {2}
215  DF  .~.~.~> With additional periodic switch in the distributor switch means circuit
216  DF  .~.~.~> Plural electrically operated switches

DEFINITION

Classification: 315/211

(under subclass 210) Systems wherein (1) two or more periodic switches are provided in the circuit, or (2) the periodic switch is a multiple circuit multiplecontact switch, the supply circuit of each of two or more of the load devices including one of the periodic switches or one of the contacts of the multiple contact switch, such switch means being arranged to open and close the circuits in sequence so that current is supplied to the load devices in time sequence.

(1) Note. Some of the patents in this and the indented subclasses are ignition systems for supplying electrical energy to a plurality of spark gaps (plugs) in timed sequence. For the line between this class and Class 123, Internal Combustion Engines, subclass 146.5, Sparkers, see the notes to the main definition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

226, for single load device systems under subclass 209 provided with a plurality of periodic switches or a multiple contact periodic switch in the supply circuit of the load device.

SEE OR SEARCH CLASS

123, Internal-Combustion Engines, see note (1) above. 200, Electricity: Circuit Makers and Breakers,

19.06+, and indented subclasses for multiple contact periodic switches.