US PATENT SUBCLASS 33 / 366.15
.~.~.~ Fluent sensor

Current as of: June, 1999
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33 /   HD   GEOMETRICAL INSTRUMENTS

300  DF  INDICATOR OF DIRECTION OF FORCE TRAVERSING NATURAL MEDIA {23}
365  DF  .~ Level or plumb, terrestrial gravitation responsive {9}
366.11  DF  .~.~ Electrically actuated signal or indicator {9}
366.15.~.~.~ Fluent sensor {4}
366.16  DF  .~.~.~.~> Having light or radiant energy detecting circuit control element
366.17  DF  .~.~.~.~> Having buoyant control element
366.18  DF  .~.~.~.~> Having fluent material reactive circuit control element (e.g., inductive) {1}
366.21  DF  .~.~.~.~> Having resistive or contact circuit control element {1}

DEFINITION

Classification: 33/366.15

Fluent sensor:

(under subclass 366.11) Subject matter wherein the gravity responsive element is a volume of flowable material.

(1) Note. The presence of fluid solely for a perfecting mechanical function of an otherwise operable solid sensor, e.g., damping of a pendulum, will be classified in the appropriate subclass containing such a sensor and not in this or its indented subclasses.