Barrel including an additional elastic means of accumulating energy
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United States of America Patent
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Mar 10, 2015
Grant Date -
Nov 8, 2012
app pub date -
May 2, 2012
filing date -
May 3, 2011
priority date (Note) -
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Abstract
The invention relates to a barrel. According to the invention, the barrel further includes a device for increasing the torque of said at least one spring including additional elastic energy accumulating means provided in addition to the spiral shape of said at least one spring, said elastic means being added to said at least one spring so that the barrel torque is personalized according to the winding tension of said at least one spring.
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