Magnetic valve incorporating a permanent magnet for effecting valve closure
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United States of America Patent
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-
Mar 24, 1992
Grant Date -
N/A
app pub date -
Feb 27, 1990
filing date -
Apr 28, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A magnetic valve which is closed when current is absent includes an electromagnet driver having a U-shaped magnetizable yoke carrying a winding; a pivotally attached armature including a soft magnetic material; a permanent magnet disposed on the armature; and a pole plate disposed between the permanent magnet and a part of the yoke which carries the winding. The yoke part and the pole plate define a separating plane therebetween. The mangetic valve further has a valve cone disposed on the armature below the separating plane.
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