US PATENT SUBCLASS 73 / 1.41
.~.~ Optical or magnetic sensing

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

1.01  DF  INSTRUMENT PROVING OR CALIBRATING {13}
1.37  DF  .~ Speed, velocity, or acceleration {2}
1.41.~.~ Optical or magnetic sensing

DEFINITION

Classification: 73/1.41

Optical or magnetic sensing:

(under subclass 1.37) Subject matter comprising a sensing means whose characteristic changes in response to a light beam being modified in accordance with the change in the property of an inertial member due to the speed or velocity of the body or the sensing means comprising a body whose magnetic characteristic changes in response to the change in the property of the inertial member due to the speed or velocity of the body.

SEE OR SEARCH THIS CLASS, SUBCLASS:

653, for an inertial type vibration sensing means having a light beam indicator.

SEE OR SEARCH CLASS

250, Radiant Energy,

227.14+, for a condition responsive light guide and subclasses 231.1+ for a light valve actuated by an external dynamic physical quantity.

335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets, for a magnet or an electromagnet, per se. 336, Inductor Devices,

30, for an inductor device having an acceleration responsive inductance adjusting means.