US PATENT SUBCLASS 340 / 870.35
.~.~.~.~ Differential type

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

870.01  DF  CONTINUOUSLY VARIABLE INDICATING (E.G., TELEMETERING) {15}
870.3  DF  .~ With particular transmitter (e.g., piezoelectric, dynamo) {3}
870.31  DF  .~.~ Inductive transmitter {1}
870.32  DF  .~.~.~ Mutual inductance {3}
870.35.~.~.~.~ Differential type {1}
870.36  DF  .~.~.~.~.~> Linear variable differential transformer (LVDT)

DEFINITION

Classification: 340/870.35

Differential type:

(under subclass 870.32) Subject matter in which the mutual inductance contains two parts, and in which the magnetic field in the two parts flows through a common portion in a differential relationship.