Amusement devices: games – Puzzles – Take-aparts and put-togethers
Patent
1989-07-13
1991-08-06
Coven, Edward M.
Amusement devices: games
Puzzles
Take-aparts and put-togethers
273DIG23, 273173, A63B 5304
Patent
active
050371029
ABSTRACT:
The present invention provides a golf club head at least the face portion of which is composed of composite materials characterized by aluminum or aluminum alloy either of which are combined with ceramics which are powdery. The golf club head has high strength, high hardness, high elasticity and a good wear resistance, and the face portion of the golf club head of the present invention shows little wear so that the durability of the club head is remarkably high. Moreover, by this invention it is easy to produce a large quantity of golf club heads so that the cost of production is largely diminished and so that a golf club head which is more practical is now available.
REFERENCES:
patent: 2908502 (1959-10-01), Bradstreet et al.
patent: 4134759 (1979-01-01), Yajima et al.
patent: 4749545 (1988-06-01), Begg et al.
patent: 4770701 (1988-09-01), Henderson et al.
patent: 4793616 (1988-12-01), Fernandez
patent: 4793967 (1988-12-01), Pryor et al.
Fukayama Tadahiro
Soeda Tomomi
Sugioka Yasushi
Coven Edward M.
Mizuno Corporation
Passaniti Sebastiano
Tokyo Yogyo Company
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