US PATENT SUBCLASS 73 / 170.15
.~.~ Thrust or drag force

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

170.01  DF  FLUID FLOW DIRECTION (E.G., WIND SOCK, WEATHER VANE, ETC.) {4}
170.11  DF  .~ With velocity determination {4}
170.15.~.~ Thrust or drag force

DEFINITION

Classification: 73/170.15

Thrust or drag force:

(under subclass 170.11) Subject matter wherein the determination of the velocity or the direction of fluid flow is made by measuring or sensing the magnitude of a force or a component thereof imparted by the fluid to an object placed in the flow path of the fluid.

SEE OR SEARCH THIS CLASS, SUBCLASS:

862+, for force measuring, per se.