Variable level seatbelt energy management device
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United States of America Patent
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Feb 1, 2000
Grant Date -
N/A
app pub date -
Nov 18, 1998
filing date -
Nov 18, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A seatbelt energy management device which includes a resistance mechanism coupled to a seatbelt apparatus having a magnetorheological fluid, a permanent magnet having a first magnetic field which orients the magnetorheological fluid to increase the magnetorheological fluid's viscosity, an electromagnet which generates a second magnetic field to cancel the first magnetic field of the permanent magnet to decrease the magnetorheological fluid's viscosity, where the resistance mechanism is controlled by the magnetorheological fluid's viscosity.
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Family
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