Multiple torsion spring and methods of use
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United States of America Patent
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Apr 24, 2001
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N/A
app pub date -
Sep 21, 1999
filing date -
Sep 21, 1999
priority date (Note) -
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Abstract
A multiple torsion spring assembly according to the present invention may be provided with a coiled helical torsion spring. The spring has first and second end coils, and a plurality of intermediate coils between the first and second end coils. The first end coil inner diameter is less than the inner diameter of the intermediate coils. The second end coil inner diameter is less than the inner diameter of the first end coil. The spring may be used to control a throttle return of a throttle body. Methods of manufacturing spring assemblies are also disclosed.
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