Electric control valve

Valves and valve actuation – Electrically actuated valve – Rotary electric actuator

Reexamination Certificate

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Details

C251S208000

Reexamination Certificate

active

07316384

ABSTRACT:
The electric control valve, in which a throttled flow rate is quantitatively determined by the groove16by a rotating position of the valve body20, the valve seat surface projects like a band from a border band16C drawing an outline of the groove16, and the end surface of the valve body20contacts slidingly on a top surface of the border band16C.

REFERENCES:
patent: 3987819 (1976-10-01), Scheuermann
patent: 4366947 (1983-01-01), Voege
patent: 4380250 (1983-04-01), Stoll
patent: 4887793 (1989-12-01), Hernandez et al.
patent: 4964433 (1990-10-01), Marietta
patent: 5069249 (1991-12-01), Ostertag et al.
patent: 5308040 (1994-05-01), Torres
patent: 5664761 (1997-09-01), Weyand et al.
patent: 5842680 (1998-12-01), Bustamante et al.
patent: 6926250 (2005-08-01), Hashimoto et al.
patent: 1331393 (2002-01-01), None
patent: 1388876 (2003-01-01), None
patent: 11-248021 (1999-09-01), None
patent: 2001-187977 (2001-07-01), None
patent: 2001-317839 (2001-11-01), None
patent: 2001-325651 (2001-11-01), None
patent: 2002-349744 (2002-12-01), None

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