US PATENT SUBCLASS 415 / 901
DRILLED WELL-TYPE PUMP

Current as of: June, 1999
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415 /   HD   ROTARY KINETIC FLUID MOTORS OR PUMPS

901DRILLED WELL-TYPE PUMP

DEFINITION

Classification: 415/901

DRILLED WELL-TYPE PUMP:

Rotary device which adds energy to working fluid* (i.e., "pump"* device). The device operates to draw working fluid through a well shaft usually bored into the earth.

(1) Note. The working fluid usually comprises oil, gas, water, or brine.