Iron type golf club head

Details Iron type golf club head Iron type golf club head

1989-05-31

1993-01-05

Millin, V.

Amusement devices: games

Puzzles

Take-aparts and put-togethers

273167J, 273173, 273 78, A63B 5304

Patent

active

051763842

ABSTRACT:
An iron type golf club head includes a head body constituted by a blade portion, a sole portion, and an impact surface portion. At least the impact surface portion of the head body is constituted by a thin plate consisting of a thermoelastic type martensite transformation alloy. The thickness of the impact surface portion is set in the range of 1.0 to 5.0 mm, and is smaller than that of each of the blade and sole portions of the head body.

REFERENCES:
patent: 1423341 (1922-07-01), Lippincott
patent: 4181306 (1980-01-01), Jepson
patent: 4252262 (1981-02-01), Igarashi
patent: 4792139 (1988-12-01), Nagasaki et al.
patent: 4798383 (1989-01-01), Nagasaki et al.
patent: 4809978 (1989-03-01), Yamaguchi
C. M. Wayman, "Some Applications of Shape-Memory Alloys", Journal of Metals, Jun., 1980, pp. 129-137.

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