Valve device

Details Valve device Valve device

2007-10-23

2007-10-23

Fox, John (Department: 3753)

Fluid handling

Systems

Multi-way valve unit

C251S065000

Reexamination Certificate

active

11013986

ABSTRACT:
A valve device includes a main body case to which an inflow pipe and an outflow pipe are connected, a valve element which is disposed inside of the main body case to open or close an outflow aperture part of the main body case, a motor for moving the valve element in an open direction and a closed direction, a valve element drive means which is driven by the motor and includes a rotary member rotated by the motor and a rotation side permanent magnet mounted in the rotary member, a valve element side permanent magnet mounted in the valve element, and a holding member which movably holds the valve element. The valve element is urged in the open direction or the closed direction by a magnetic attractive force or a magnetic repulsive force generated between the rotation side permanent magnet and the valve element side permanent magnet.

REFERENCES:
patent: 3334655 (1967-08-01), Eppendahl
patent: 5169117 (1992-12-01), Huang
patent: 5842680 (1998-12-01), Bustamante et al.
patent: 6058726 (2000-05-01), Noritake
Patent Abstracts of Japan; Publication No. 2002-349741 published Dec. 4, 2002 (Appln No. 2001-153996 May 23, 2001, Sankyo Seiki Mgf. Co. Ltd.).
Patent Abstracts of Japan; Publication No. 2003-021254 published Jan. 24, 2003 (Appln No. 2001-209219 Jul. 10, 2001, Sankyo Seiki Mgf. Co. Ltd.).

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