Drive assembly for driving a rotary member, in particular a combustion engine water pump shaft
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United States of America Patent
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Apr 5, 2011
Grant Date -
Jun 21, 2007
app pub date -
Apr 1, 2004
filing date -
Apr 2, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a drive assembly for driving a pulley of a water pump of a combustion engine, a movable supporting arm is fitted idly with a drive wheel, and is loaded by a torsion spring to bring the drive wheel into angular engagement with the pulley fitted to the shaft of the pump, and with a drive belt of the engine; an actuating device (being activatable to exert a force in opposition to that exerted by the torsion spring, and detach the drive wheel from the pulley.
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