Structure of a golf club head or other ball striking device

Details Structure of a golf club head or other ball striking device Structure of a golf club head or other ball striking device

2004-09-07

2008-08-05

Passaniti, Sebastiano (Department: 3711)

Games using tangible projectile

Golf

Practice swingable implement or indicator associated with...

C473S255000, C473S334000, C473S340000, C473S341000

Reexamination Certificate

active

07407443

ABSTRACT:
Ball striking devices, such as golf club heads (including putter heads), have a high moment of inertia about their center, to help prevent twisting and mis-hits, particularly when the ball striking device hits the ball at a somewhat off-center position. The ball striking head of the ball striking device may be structured and/or weighted (optionally with separately attachable weight elements) to have a moment of inertia about a center of the ball striking surface of at least 10,000 g-cm2, and in some examples, the moment of inertia may be at least 11,000 g-cm2, or even at least 12,000 g-cm2. In some examples, the moment of inertia may be at least 20,000 g-cm2, or even at least 25,000 g-cm2or at least 28,000 g-cm2.

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