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    • 19. 发明授权
    • Multi-walled tubular baseball bats with barrel inserts of variable geometry
    • 具有可变几何形状的桶形插入物的多壁管状棒球棒
    • US07867114B2
    • 2011-01-11
    • US11740519
    • 2007-04-26
    • Terrance William SutherlandStephen FitzgeraldFrederic St. Laurent
    • Terrance William SutherlandStephen FitzgeraldFrederic St. Laurent
    • A63B59/06
    • A63B59/50A63B60/54A63B2102/18A63B2102/182
    • A multi-walled, tubular baseball bat has a barrel portion with a mid-section wherein the radial stiffness of the overall barrel wall varies along the barrel length to provide an enlarged sweetspot, improved soft feel and performance, plus unique sounds upon impact. The bat has a frame with a barrel portion of consistent diameter. A secondary member, or members, of tubular form extend internally along the barrel. The secondary member provides the required radial stiffness variation by: 1) variations in the thickness of the wall of the secondary member or by, 2) secondary members with unique geometric external surface profiles or by, 3) the presence of functional air cavities, with or without closed ends, between the main bat frame and the secondary member or members or by, 4) the presence of numerous annular secondary members located side by side less than one-half the length of the barrel portion.
    • 多壁管状棒球棒具有带有中段的桶部分,其中整个桶壁的径向刚度沿桶长度变化,以提供增大的甜食,改善的柔软手感和性能,以及冲击时的独特声音。 蝙蝠具有一个具有一致直径的桶部分的框架。 管状形式的次要部件或部件沿枪管内部延伸。 辅助构件通过以下方式提供所需的径向刚度变化:1)次要构件壁的厚度变化,或2)具有独特几何外表面轮廓的次要构件或3)功能空气腔的存在, 或没有封闭端,在主蝙蝠框架和次级构件或构件之间,或者通过4)存在并排位于小于枪管部分的长度的一半的多个环形次级构件。
    • 20. 发明申请
    • MULTI-WALLED TUBULAR BASEBALL BATS WITH BARREL INSERTS OF VARIABLE GEOMETRY
    • 多层管状基座棒与可变几何的棒式插件
    • US20070254752A1
    • 2007-11-01
    • US11740519
    • 2007-04-26
    • Terrance SutherlandStephen FitzgeraldFrederic St. Laurent
    • Terrance SutherlandStephen FitzgeraldFrederic St. Laurent
    • A63B59/06
    • A63B59/50A63B60/54A63B2102/18A63B2102/182
    • A multi-walled, tubular baseball bat has a barrel portion with a mid-section wherein the radial stiffness of the overall barrel wall varies along the barrel length to provide an enlarged sweetspot, improved soft feel and performance, plus unique sounds upon impact. The bat has a frame with a barrel portion of consistent diameter. A secondary member, or members, of tubular form extend internally along the barrel. The secondary member provides the required radial stiffness variation by: 1) variations in the thickness of the wall of the secondary member or by, 2) secondary members with unique geometric external surface profiles or by, 3) the presence of functional air cavities, with or without closed ends, between the main bat frame and the secondary member or members or by, 4) the presence of numerous annular secondary members located side by side less than one-half the length of the barrel portion.
    • 多壁管状棒球棒具有带有中段的桶部分,其中整个桶壁的径向刚度沿桶长度变化,以提供增大的甜食,改善的柔软手感和性能,以及冲击时的独特声音。 蝙蝠具有一个具有一致直径的桶部分的框架。 管状形式的次要部件或部件沿枪管内部延伸。 辅助构件通过以下方式提供所需的径向刚度变化:1)次要构件壁的厚度变化,或2)具有独特几何外表面轮廓的次要构件或3)功能空气腔的存在, 或没有封闭端,在主蝙蝠框架和次级构件或构件之间,或者通过4)存在并排位于小于枪管部分的长度的一半的多个环形次级构件。