Hollow golf club

Details Hollow golf club Hollow golf club

2008-07-08

2008-07-08

Hunter, Jr., Alvin A. (Department: 3711)

Games using tangible projectile

Golf

Club or club support

C473S332000, C473S334000, C473S345000

Reexamination Certificate

active

07396293

ABSTRACT:
A golf club with improved performance over a larger percentage of the strike face, including the lower extremities of the face, is disclosed and claimed. The club head has a coefficient of restitution that approaches substantial uniformity across the face. The golf club head includes a body having a face, a sole, a transition zone between the face and the sole. The transition zone has an internal surface and an external surface. Both the internal and external surfaces have radii of curvature greater than 0.2 inch. The transition zone transitions smoothly from the face, through the transition zone, to the sole. An extension may be provided adjacent the transition zone, cooperating with the transition zone to form a chamber. Dampening and/or weight inserts may be positioned within the chamber.

REFERENCES:
patent: 5492327 (1996-02-01), Biafore, Jr.
patent: 6428426 (2002-08-01), Helmstetter et al.
patent: 6743118 (2004-06-01), Soracco
patent: 7147572 (2006-12-01), Kohno
patent: 2004174224 (2004-06-01), None
patent: 2004351054 (2004-12-01), None

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