US PATENT SUBCLASS 33 / 366.11
.~.~ Electrically actuated signal or indicator

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.~.~ Electrically actuated signal or indicator {9}
366.12  DF  .~.~.~> Plural nonparallel axes or plural orientation sensors
366.13  DF  .~.~.~> With compensation of sensed quantity (e.g., acceleration)
366.14  DF  .~.~.~> With pulse or digital processing circuit component
366.15  DF  .~.~.~> Fluent sensor {4}
366.23  DF  .~.~.~> Having light or radiant energy detecting circuit control element
366.24  DF  .~.~.~> Having pendulum sensor
366.25  DF  .~.~.~> Having reactive circuit control element (e.g., inductive, capacitive)
366.26  DF  .~.~.~> Having resistive or contact circuit control element
366.27  DF  .~.~.~> Indicator details

DEFINITION

Classification: 33/366.11

Electrically actuated signal or indicator:

(under subclass 365) Subject matter including means producing a humanly perceptive signal to a flow of electron, an element responsive to terrestrial gravitation, and wherein the terrestrial gravitation responsive element controls the humanly perceptive signal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

312, for a borehole direction or inclination device including electrical telemetering of the sensed condition.

SEE OR SEARCH CLASS

340, Communications, Electrical,

853.8, for an arrangement for borehole condition telemetering combined with telemetering equipment orientation sensing.