Variable stiffness shaft
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United States of America Patent
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Mar 26, 2002
Issued Date -
N/A
app pub date -
Sep 21, 1998
filing date -
Sep 21, 1998
priority date (Note) -
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Abstract
An variable shaft, for example for a golf club. A hollow shaft has a cable or wire in the center, and means for varying the tension of the cable or wire. Increasing tension on the cable or wire places the shaft in compression and thereby reduces its bending stiffness. Preferably, the variation means are designed so that the wire tension may be quickly and easily varied by the user.
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