US PATENT SUBCLASS 336 / 143
.~ With connection reversing means


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

137  DF  WITH MEANS TO CHANGE COIL LENGTH OR CONNECTIONS {8}
143.~ With connection reversing means


DEFINITION

Classification: 336/143

(under subclass 137) Subject matter wherein the inductor device is provided with a plurality of coil sections or a coil having means (e.g., taps) for making contact with the coil conductor at different places, the inductor device including means (e.g., a switch) to reverse the inductive effect of one coil section or part with respect to another coil section or part, and to thereby change the effective inductance of the inductor device.

(1) Note. An illustrative example is: [figure]