Valve control device

Details Valve control device Valve control device

2007-01-02

2007-01-02

Jacyna, J. Casimer (Department: 3751)

Valves and valve actuation

With means to increase head and seat contact pressure

Gate valve

C251S192000, C251S301000

Reexamination Certificate

active

10510752

ABSTRACT:
The device (1) comprises a support structure (2) in which at least a first opening (8, 9) is defined, a shutter (13) which is mounted for piloting in that structure (2) and which is adapted to take up a least a first and a second angular position, in which it closes and opens at least partially the first opening (8, 9) of the structure (2), respectively, and an actuator device (25) which is capable of bringing about a controlled angular movement of the shutter (13) relative to the support structure (2).

REFERENCES:
patent: 2134143 (1938-10-01), Paget
patent: 4208884 (1980-06-01), Popham
patent: 5397100 (1995-03-01), Miller
patent: 5566922 (1996-10-01), Tanaka et al.
patent: 6240735 (2001-06-01), Kolson et al.
patent: 6584790 (2003-07-01), Lopes
patent: WO 01/04555 (2001-01-01), None

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