Golf club head having a composite crown

Metal fusion bonding – Process – Alternative bonding

Reexamination Certificate

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Details

C473S345000, C473S349000

Reexamination Certificate

active

07854364

ABSTRACT:
The present invention resides in a golf club head having a high COR that is durable and has desirable acoustic qualities. The club head includes a body portion, a striking face and a crown forming a hollow cavity of at least 150 cc in volume. The crown is secured to the body portion, enclosing an upper opening. A surface veil may also be provided about a junction of the crown and body. The crown has a maximum thickness no greater than about 2 mm. The density of the crown is less than the density of the body portion. The golf club head has a maximum coefficient of restitution of at least 0.80.

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