US PATENT SUBCLASS 336 / 138
.~ Parallel-spaced conductors or coils bridged by movable connector

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

137  DF  WITH MEANS TO CHANGE COIL LENGTH OR CONNECTIONS {8}
138.~ Parallel-spaced conductors or coils bridged by movable connector

DEFINITION

Classification: 336/138

(under subclass 137) Subject matter comprising conductors (which may be coils) lying in side by side relation, or having a common axis, and bridged by a conducting member, which member is movable along the conductors to include equivalent portions of both conductors in each of its various positions.

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

SEE OR SEARCH THIS CLASS, SUBCLASS:

184, for nonadjustable plural coil winding inductive devices where coils have different axes or are mounted on different core legs.

SEE OR SEARCH CLASS

333, Wave Transmission Lines and Networks, 219+, for resonators of the distributed electrical parameter type, which structurally may be parallel transmission lines joined by a movable shorting bar, and subclasses 245+ for similar distributed electrical parameter lines which are operated at other than their resonant frequency thereby effecting an inductive or capacitive reactance at the terminals thereof.