Electro-slip clutch
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United States of America Patent
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Apr 14, 2009
Grant Date -
May 10, 2007
app pub date -
Nov 9, 2005
filing date -
Nov 9, 2005
priority date (Note) -
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Abstract
An electro-slip clutch may include a friction stack for receiving input rotation from an input shaft and a surrounding hub and for attaching to an output member. A bearing surface may be provided adjacent the friction stack and a solenoid may further be provided. The solenoid may include a plunger in a first position pressing against the bearing surface with a first degree of force and in a second position different than the first position relative to the bearing surface. Thus, torque transmitted through the friction stack is adjustable by the solenoid. A method of operating a clutch mechanism may include providing a solenoid adjacent a friction stack and providing a first current level to the solenoid, the first current level energizing a coil of the solenoid and pushing a plunger within the solenoid towards the friction stack with a first degree of force.
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