Device and method for controlling the flow of fluid in a...

Details Device and method for controlling the flow of fluid in a... Device and method for controlling the flow of fluid in a...

2007-12-18

2007-12-18

Rivell, John (Department: 3753)

Fluid handling

With indicator, register, recorder, alarm or inspection means

Position or extent of motion indicator

C137S625110, C137S625460

Reexamination Certificate

active

11429562

ABSTRACT:
The present invention provides devices and methods for controlling the flow of fluids in very high pressure situations. The devices feature valve shafts having bearings and pins to hold stator surfaces and rotor surfaces in proper alignment.

REFERENCES:
patent: 3384118 (1968-05-01), Heintz et al.
patent: 4501297 (1985-02-01), Baker
patent: 4846098 (1989-07-01), Kobayashi et al.
patent: 6012487 (2000-01-01), Hauck
patent: 6267143 (2001-07-01), Schick
patent: 6352105 (2002-03-01), Serratto
patent: 2005/0199304 (2005-09-01), Poppe et al.

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