Wood-type metal golf club head and process for producing the sam

Details Wood-type metal golf club head and process for producing the sam Wood-type metal golf club head and process for producing the sam

1991-08-27

1992-08-04

Shapiro, Paul E.

Amusement devices: games

Puzzles

Take-aparts and put-togethers

273167H, 273DIG7, 264 453, 264DIG6, A63B 5304

Patent

active

051352273

ABSTRACT:
A wood-type metal golf club head comprising a hollow metal head body and a core material filling the inside of the metal head body, wherein the core material is an aggregate prepared by fusing expandable beads comprising a microcapsule of a synthetic polymer and an expanding gas enclosed therein to each other by the expansion of the gas and has a bulk specific gravity of 0.05 to 0.15 g/cm.sup.3.

REFERENCES:
patent: 3864181 (1975-02-01), Wolinski et al.
patent: 4128963 (1978-12-01), Dano
patent: 4413822 (1983-11-01), Fernandez et al.
patent: 5007643 (1991-04-01), Okumoto et al.

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