Hybrid butterfly fluid control valve

Details Hybrid butterfly fluid control valve Hybrid butterfly fluid control valve

2006-04-25

2006-04-25

Yu, Justine R. (Department: 3751)

Valves and valve actuation

Rotary valves

Butterfly

C251S192000, C251S279000

Reexamination Certificate

active

07032883

ABSTRACT:
A flow control valve system has a housing that defines a flow path, a throttle element disposed in the flow path, and a linkage assembly coupled to the throttle element and oriented substantially outside the flow path. With such an orientation, the linkage assembly has minimal effect on a pressure gradient or pressure drop within the flow control valve system. As such, the linkage assembly allows the flow control valve system to deliver fluid from a fluid input channel to a fluid output channel at a relatively large volume flow rate.

REFERENCES:
patent: 4288060 (1981-09-01), Mittell
patent: 4921212 (1990-05-01), deQuay
patent: 5118078 (1992-06-01), Younker
patent: 5330157 (1994-07-01), Dern et al.
patent: 5551666 (1996-09-01), Irnich
patent: 2002/0047101 (2002-04-01), Buchwald
patent: 2002/0130290 (2002-09-01), Oberbeck
patent: 2002/0134960 (2002-09-01), Zwick
patent: 2003/0101966 (2003-06-01), Hattori et al.
patent: 196 41 032 (1998-04-01), None
Search Report from PCT/US2005/007802 filed on Mar. 11, 2005, Total pp.: 4.

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