US PATENT SUBCLASS 73 / 861.79
.~ Using turbine

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

861  DF  VOLUME OR RATE OF FLOW {23}
861.79.~ Using turbine {5}
861.81  DF  .~.~> With response modification {2}
861.85  DF  .~.~> Anemometers
861.86  DF  .~.~> With fluid directed radially outward
861.87  DF  .~.~> With flow direction retained in a plane perpendicular to turbine axis {1}
861.89  DF  .~.~> Axial supply and delivery {4}

DEFINITION

Classification: 73/861.79

Using turbine:

(under subclass 861) Subject matter wherein means rotatable

about an axis by a flowing fluid provides an output indicative of flow rate.

SEE OR SEARCH THIS CLASS, SUBCLASS:

861.01, for devices wherein the turbine output is combined with the output from one or more fluid condition responsive transducers.

861.33, wherein a turbine is used to measure swirl rate.

861.77+, wherein the output of the turbine is electrical and specific details of the circuit are included.

SEE OR SEARCH CLASS

415, Rotary Kinetic Fluid Motors or Pumps, wherein only those motive parts are claimed such as are capable of general use as a turbine meter or motor.