Golf club shaft

Details Golf club shaft Golf club shaft

2005-08-09

2005-08-09

Blau, Stpehen (Department: 3711)

Games using tangible projectile

Golf

Club or club support

Reexamination Certificate

active

06926617

ABSTRACT:
A golf club shaft has an angular layer composed of prepregs in which a reinforcing fiber inclines to the axis of the golf club shaft; a plurality of straight layers composed of prepregs in which the reinforcing fiber is disposed substantially parallel with the axis of the golf club shaft. The reinforcing fiber of the prepreg at an inner side of the straight layer has an intermediate elasticity and a high strength. The tensile break strain of the prepreg at an outer side of the straight-layer is set higher than that of the prepreg at the inner side of the straight layer.

REFERENCES:
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patent: 5156396 (1992-10-01), Akatsuka et al.
patent: 5437450 (1995-08-01), Akatsuka et al.
patent: 6110056 (2000-08-01), Yamamoto
patent: 6273830 (2001-08-01), Takemura et al.
patent: 6306047 (2001-10-01), Kusumoto
patent: 6-165844 (1994-06-01), None
patent: 2001-46564 (2001-02-01), None
patent: 2001-62014 (2001-03-01), None

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