US PATENT SUBCLASS 336 / 147-- .~.~ Plural coils or coil portions connected in parallel or in series and parallel

US PATENT SUBCLASS 336 / 147
.~.~ Plural coils or coil portions connected in parallel or in series and parallel

Current as of: June, 1999
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336 /	HD	INDUCTOR DEVICES

137	DF	WITH MEANS TO CHANGE COIL LENGTH OR CONNECTIONS {8}
145	DF	.~ Plural coils (e.g., transformers) {3}
147		.~.~ Plural coils or coil portions connected in parallel or in series and parallel

DEFINITION

Classification: 336/147

(under subclass 145) Subject matter in which there are a plurality of coils or coil portions which are connected in parallel relation with respect to each other, means being provided to change the coil length or connections of the parallel connected coils or coil portions.

(1) Note. The change may be to change the coils or coil portions from parallel relation to series relation.

(2) Note. The device may also include coils or coil

portions connected in series with the parallel connected coils or coil portions.

(3) Note. Illustrative examples are: [figure] [figure]

SEE OR SEARCH CLASS

323, Electricity: Power Supply or Regulation Systems, 346, for miscellaneous transformer systems where the transformer is provided with windings which may be selectively connected wither in series or parallel.