Electromagnetically operated valve

Details Electromagnetically operated valve Electromagnetically operated valve

2005-02-01

2005-02-01

Bastianelli, John (Department: 3754)

Valves and valve actuation

Permanent or constantly energized magnet actuator

C251S129200, C251S129210, C251S337000, C137S625440, C335S078000

Reexamination Certificate

active

06848667

ABSTRACT:
A valve for controlling fluid flow having a chamber of non magnetizable material having an inlet opening and at least one outlet opening, a magnetizable armature having a valve closure member, an electromagnetic drive for moving the closure member from one end to the other of a path defined by the chamber. A seating is provided at each end of the path within the chamber, each seating being complementary to the external surface of the closure member, so that the closure member is a snug fit in each seating. A permanent magnet and pole pieces create two opposite, spaced apart powerful magnetic fields in each of which the flux extends across the chamber perpendicular to the direction of movement of the closure member, and a solenoid surrounds the chamber, which when energized creates a second magnetic field, in which the flux is parallel to that of the permanent fields.

REFERENCES:
patent: 2366412 (1945-01-01), Lambert
patent: 3443585 (1969-05-01), Reinicke
patent: 3768051 (1973-10-01), Kurpanek
patent: 3987383 (1976-10-01), Antonitsch
patent: 4403765 (1983-09-01), Fisher
patent: 4559971 (1985-12-01), Bradshaw
patent: 4635681 (1987-01-01), Boldish
patent: 4819693 (1989-04-01), Rodder
patent: 5144982 (1992-09-01), Willbanks
patent: 5711347 (1998-01-01), Sturman
patent: 03819 (1982-02-01), None
patent: WO 00207806 (2000-04-01), None

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