US PATENT SUBCLASS 200 / 42.01
PLURAL SWITCHES CONTROL SINGLE CIRCUIT


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200 /   HD   ELECTRICITY: CIRCUIT MAKERS AND BREAKERS

42.01PLURAL SWITCHES CONTROL SINGLE CIRCUIT {1}
42.02  DF  .~> Coded removable actuator


DEFINITION

Classification: 200/42.01

PLURAL SWITCHES CONTROL SINGLE CIRCUIT:

(under the class definition) Devices wherein a single circuit is closed or opened by placing a plurality of circuit controlling switches in a specified relationship to complete or open the circuit.

(1) Note. These devices are commonly known as permutation switches.

(2) Note. The switches are normally in series when the desired state is circuit completion and the switches are normally parallel when the desired state is an open circuit.