Variable density golf club

Details Variable density golf club Variable density golf club

2004-08-11

2010-10-19

Hunter, Alvin A (Department: 3711)

Games using tangible projectile

Golf

Club or club support

C473S350000

Reexamination Certificate

active

07815523

ABSTRACT:
A golf club head having portions of varying density is disclosed and claimed. The club head includes a body with a recess in the back between the heel and toe and extending toward the sole. An insert that is configured to matingly correspond to the recess is positioned within the recess. The insert has a lower specific gravity than the club head body, biasing the club head mass toward the club head perimeter. The insert can form a muscle of the club head. The club head is forged, and the recess is formed by machining. After the insert is positioned within the recess, the club head-insert combination is subjected to additional forging and finishing steps. The present invention increases the club head moment of inertia and/or enlarges the club head sweet spot while retaining the golfer's ability to work the golf ball and shape the golf shot. The present invention can be used with forged, blade, and muscle back clubs, which have not heretofore been enhanced in these manners.

REFERENCES:
patent: 4992236 (1991-02-01), Shira
patent: 5062638 (1991-11-01), Shira
patent: 5584770 (1996-12-01), Jensen
patent: 5658208 (1997-08-01), Shimasaki
patent: 5749794 (1998-05-01), Kobayashi et al.
patent: 5788584 (1998-08-01), Parente et al.
patent: 6015354 (2000-01-01), Ahn et al.
patent: 6027415 (2000-02-01), Takeda
patent: 6030293 (2000-02-01), Takeda
patent: 6093112 (2000-07-01), Peters et al.
patent: 6200228 (2001-03-01), Takeda
patent: 6290607 (2001-09-01), Gilbert et al.
patent: 6364788 (2002-04-01), Helmstetter et al.
patent: 6434811 (2002-08-01), Helmstetter et al.
patent: 6440010 (2002-08-01), Deshmukh
patent: 6447715 (2002-09-01), Amick
patent: 6482104 (2002-11-01), Gilbert
patent: 6508978 (2003-01-01), Deshmukh
patent: 6592469 (2003-07-01), Gilbert
patent: 6863625 (2005-03-01), Reyes et al.
patent: 6902495 (2005-06-01), Pergande et al.
patent: 6921344 (2005-07-01), Gilbert et al.
patent: 2002/0042307 (2002-04-01), Deshmukh
patent: 2002/0124759 (2002-09-01), Amick
patent: 2003/0000341 (2003-01-01), Amick
patent: 2003/0092499 (2003-05-01), Gilbert
patent: 2003/0143099 (2003-07-01), Amick
patent: 2003/0153397 (2003-08-01), Roach et al.
patent: 06343722 (1994-12-01), None
patent: 08-38657 (1996-02-01), None
patent: 09117537 (1997-05-01), None
patent: 10-151231 (1998-06-01), None
patent: 11104283 (1999-04-01), None
patent: 2001029521 (2001-02-01), None
patent: 2002-35176 (2002-02-01), None
patent: 2002065913 (2002-03-01), None
Callister, Jr., William D. Materials Science and Engineering, 4th Edition. New York: John Wiley & Sons, Inc, copyright 1997, p. 775.

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