Torsion spring configuration and releasable casing utilizing the same
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United States of America Patent
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Jul 13, 2010
Grant Date -
Apr 3, 2008
app pub date -
Sep 14, 2006
filing date -
Sep 14, 2006
priority date (Note) -
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Abstract
A torsion spring includes a spring body wound by a helical wire, a first arm extending tangently from an end of the spring body, and a second arm extending from the other end of the spring body. The first arm includes sequentially a first portion extending from the spring body, a curved second portion bent toward a first direction from the first portion, and a curved third portion bent toward a different second direction from the second portion. A torsion spring assembly and a releasable casing using the torsion spring are also disclosed.
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