US PATENT SUBCLASS 416 / 37
.~.~ Relative ambient condition sensing (e.g., temperature, density, wind force, etc.)

Current as of: June, 1999
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416 /   HD   FLUID REACTION SURFACES (I.E., IMPELLERS)

31  DF  WITH CONTROL MEANS RESPONSIVE TO NON-CYCLIC CONDITION SENSING, CENTRIFUGAL ACTUATION, TORQUE OR THRUST {9}
36  DF  .~ Plural diverse condition responsive {2}
37.~.~ Relative ambient condition sensing (e.g., temperature, density, wind force, etc.)

DEFINITION

Classification: 416/37

(under subclass 36) Apparatus in which one condition sensed is a characteristic of the surrounding atmosphere.

(1) Note. Relative air speed is considered to be wind force; altitude is considered to be characteristic of atmospheric density. Both of these conditions are included under this definition.