US PATENT SUBCLASS 73 / 861.72
.~.~ By changing fluid direction

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

861  DF  VOLUME OR RATE OF FLOW {23}
861.71  DF  .~ By measuring thrust or drag forces {3}
861.72.~.~ By changing fluid direction

DEFINITION

Classification: 73/861.72

By changing fluid direction:

(under subclass 861.71) Subject matter wherein the object or conduit segment changes the direction of the fluid and the forces imparted by the fluid are predominantly the reaction forces necessary to change the direction of the flow.