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United States of America Patent
Stats
-
Apr 18, 1989
Grant Date -
N/A
app pub date -
Jan 29, 1988
filing date -
Jan 29, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A magnetically controlled steel ball armature functions as a clapper to strike a gong. A positionally adjustable permanent magnet polarizes the ball and positions it relative to the gong. An electromagnet modulates the magnetic field of the permanent magnet to drive the ball strikingly against the gong. Bell tap is suppressed by adjusting the position of the permanent magnet relative to the gong.
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Family
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Cited Art Landscape
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