Screw pump and pumping arrangement

Details Screw pump and pumping arrangement Screw pump and pumping arrangement

2005-01-14

2011-12-13

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

With plural working fluid inlet or outlet passages

C418S009000, C418S201100

Reexamination Certificate

active

08075288

ABSTRACT:
A screw pump and pumping arrangement including a screw pump having a chamber and externally threaded rotors mounted on shafts for counter-rotation and flow paths with fluid inlets located at a common low pressure side of the chamber.

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