143408 ⎘
Rotary-piston machines or pumps of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents with coaxially-mounted members having continuously-changing circumferential spacing between them
Sub-classes:Gas delivery augmenter with pump mechanism
#2RADIAL VANE PUMP OR MOTOR WITH ROLLING CHAMBER
#3Electromagnetic only vane coordination of a cat and mouse engine
#4Arrangement comprising a rotor, a stator and means for mutual position detection thereof
#5Mud motor assembly
#6Mud motor assembly
#7ELECTRIC MACHINE - FLUID MACHINE STANCHEV AGGREGATION SET
#8Systems and methods for energizing and distributing fluids
#9Devices Employing Colloidal-Sized Particles