Golf club shaft

Details Golf club shaft Golf club shaft

2005-10-11

2005-10-11

Blau, Stephen (Department: 3711)

Games using tangible projectile

Golf

Club or club support

Reexamination Certificate

active

06953402

ABSTRACT:
A golf club shaft having a structure of a plurality of fiber reinforced prepregs layered one upon another. A grip-side reinforcing layer 6 (6A, 6B) and a head-side reinforcing layer 5 (5A, 5B, and 5C) are provided. In each of the grip-side reinforcing layer and the head-side reinforcing layer, a length of at least one of the prepregs is different from that of the other prepregs in an axial direction thereof, and the number of layers of the prepregs disposed at both ends of the golf club shaft is set larger than that of layers thereof disposed at a middle part of the golf club shaft.

REFERENCES:
patent: 4000896 (1977-01-01), Lauraitis
patent: 5265872 (1993-11-01), Tennent et al.
patent: 5427373 (1995-06-01), Kusumoto
patent: 6056648 (2000-05-01), Kusumoto et al.
patent: 6-7764 (1994-02-01), None
patent: 9-173516 (1997-07-01), None
patent: A9234256 (1997-09-01), None
patent: B2-2705047 (1997-10-01), None
patent: A10127838 (1998-05-01), None
patent: 10-230030 (1998-09-01), None

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