Hollow golf club head

Details Hollow golf club head Hollow golf club head

2006-05-02

2006-05-02

Passaniti, Sebastiano (Department: 3711)

Games using tangible projectile

Golf

Club or club support

C473S349000

Reexamination Certificate

active

07037214

ABSTRACT:
A hollow golf club head allowing to increase the repulsion and the degree of design freedom, while maintaining the durability. A hollow golf club head having a head body formed from a metal, wherein a hole is formed in the vicinity of the middle of a crown portion in the head body, the hole is closed with a cover member made of a material different from the head body, and the ratio (ρm/ρf) of the specific gravity ρm of the head body and the specific gravity ρf of the cover member is set equal or superior to 1.3.

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patent: 2004/0224790 (2004-11-01), Lu

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