Golf club

Details Golf club Golf club

2007-11-27

2007-11-27

Blau, Stephen (Department: 3711)

Games using tangible projectile

Golf

Club or club support

C473S316000, C473S345000, C473S349000

Reexamination Certificate

active

11478648

ABSTRACT:
A reference state is envisioned in which a golf club is placed on a horizontal plane P with a predetermined lie angle and face angle, and the shaft axis line thereof is disposed within a reference plane that is perpendicular to the horizontal plane P. A center of gravity of the head G is positioned on the back side of the head from the reference plane, and a depth of the center of gravity D that is a distance between the reference plane and the center of gravity of the head G is 20 mm or greater and 30 mm or less. The golf club has a flexural rigidity value EIt (kgf·mm2) of the shaft at a position T3140 mm away from the tip on the head side being 0.5×106or greater and 1.75×106or less. More preferably, a value of a ratio (GIt/EIt) of the flexural rigidity value EIt to a torsional rigidity value GIt of the shaft at a position 140 mm away from the tip on the head side is specified to be 0.8×10−2or greater and 1.2×10−2or less.

REFERENCES:
patent: 5439219 (1995-08-01), Vincent
patent: 09-038254 (1997-10-01), None
patent: 3-251269 (1998-11-01), None
patent: 11-123255 (1999-05-01), None
patent: 2002-360746 (2002-12-01), None
patent: 2005-130935 (2005-05-01), None

Affiliated with

Also associated with

Rating

Golf club does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Golf club, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Golf club will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3862302