Magnetic fluid cushioning device for a footwear or shoe
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United States of America Patent
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Apr 10, 2007
Grant Date -
N/A
app pub date -
Jul 23, 2003
filing date -
Jul 23, 2003
priority date (Note) -
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Abstract
A cushioning device for a footwear or shoe includes a chamber with a magnetically responsive fluid therein for absorbing and/or dampening vibrations and/or shocks. A magnetic member, such as an electromagnet, is provided for applying a magnetic field to the magnetic fluid to thereby vary the viscosity thereof.
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