US PATENT SUBCLASS 73 / 152.34
.~.~.~ Rotary

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

152.01  DF  BOREHOLE OR DRILLING (E.G., DRILL LOADING FACTOR, DRILLING RATE, RATE OF FLUID FLOW) {6}
152.18  DF  .~ Fluid flow measuring or fluid analysis {6}
152.29  DF  .~.~ Rate of fluid flow {5}
152.34.~.~.~ Rotary {1}
152.35  DF  .~.~.~.~> Magnetic

DEFINITION

Classification: 73/152.34

Rotary:

(under subclass 152.29) Subject matter which includes an element rotatable about an axis due to the flow of the fluid and the determination of the characteristic of the borehole, the casing, or the drill rigging is made by measuring the rate of rotation of the rotary element.

SEE OR SEARCH THIS CLASS, SUBCLASS:

861.33, for a device wherein the rotation rate of an element rotated by a flow of a fluid is used to measure swirl rate of a fluid flow.

861.77+, for a meter for measuring a rate of fluid flow including an element rotated by a flow of a fluid and having an electrical circuit and wherein specific details of the circuit are included.

861.79+, for measuring rate of fluid flow, per se, by use of an element rotated by a flow of a fluid whose rate is being measured.