.~ Periodic switch in the primary circuit of the supply transformer {4}
222
.~.~ Plural interrupted transformer coil circuits
DEFINITION
Classification: 315/222
(under subclass 219) Systems wherein the circuits which are connected to two or more of the transformer coils are periodically interrupted.
(1) Note. The circuits which are periodically interrupted may be the primary and secondary circuits, or may be two or more different primary or secondary circuits.
SEE OR SEARCH THIS CLASS, SUBCLASS:
213, for plural load device systems provided with a transformer in the supply circuit of each of the load devices, the primary circuits of the plural transformers being connected to a distributor type periodic switching means so that the primary circuits are closed in timed sequence with respect to each other.
214, for this subject matter where there are a plurality of load devices in the system and a transformer in the supply circuit, a periodic switch being connected in the primary circuit and a distributor type periodic switch means being connected in the secondary circuit.
226, for systems under subclass 209 which are provided with a plurality of periodic switches or a multiple contact periodic switch in the supply circuit of the load device.
