Golf club head

Details Golf club head Golf club head

2007-03-13

2007-03-13

Kim, Eugene (Department: 3711)

Games using tangible projectile

Golf

Practice swingable implement or indicator associated with...

C473S347000, C473S345000

Reexamination Certificate

active

11042048

ABSTRACT:
A golf club head comprises: a hollow main body made of at least one metal material and provided in at least one of a crown portion and a sole portion of the head with an opening; and an FRP part covering said opening and made of at least one resinous material reinforced with fibers, wherein the fibers include: longitudinal fibers oriented in a direction substantially parallel to the front-back direction of the head; and traversal fibers oriented in a direction substantially perpendicular to the front-back direction, and the longitudinal fibers are less than the traversal fibers with respect to a total weight of fibers in a unit area and/or a total of tensile elastic moduli of fibers in a unit area.

REFERENCES:
patent: 5419231 (1995-05-01), Earle et al.
patent: 5425538 (1995-06-01), Vincent et al.
patent: 5447311 (1995-09-01), Viollaz et al.
patent: 6248025 (2001-06-01), Murphy et al.
patent: 6849003 (2005-02-01), Kumamoto
patent: 6969326 (2005-11-01), De Shiell et al.
patent: 2003/0134692 (2003-07-01), Nakahara et al.
patent: 2004/0053705 (2004-03-01), Kumamoto

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