Games using tangible projectile – Golf – Club or club support
Reexamination Certificate
2000-06-09
2004-06-15
Passaniti, Sebastiano (Department: 3711)
Games using tangible projectile
Golf
Club or club support
C473S345000
Reexamination Certificate
active
06749524
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates generally to a golf club head, and more particularly to fusing structures of a ball-striking plate and a shell of the golf club head.
BACKGROUND OF THE INVENTION
As shown in
FIG. 1
, a prior art golf club head
80
is formed of a shell
81
and a ball-striking plate
83
fused to an insertion slot
82
of the front face of the shell
81
. In the fusing process, the shell
81
and the ball-striking plate
83
are fused together by an annular welding portion
84
formed by welding.
As shown in
FIG. 2
, another prior art golf club head
90
comprises a shell
91
which is provided with an arcuate opening
92
to which a ball-striking plate
93
is attached such that the outer periphery of the back of the plate
93
and the shell
91
form an annular slot
94
. The welding is done along the slot
94
to fuse the shell
91
and the plate
93
together.
As shown in
FIG. 3
, the prior art golf club head, such as the one shown in
FIG. 2
, is defective in design in that the center of the plate
93
is apt to cave in elastically upon being impacted by an external force, and that the fringe of the plate
93
is elastically curved forward in opposite direction. As a result, the welding portion between the plate
93
and the shell
91
is susceptible to crack.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a golf club head with a ball-striking plate which is securely fused with a shell of the head.
The golf club head of the present invention comprises a metal shell and a metal ball-striking plate. The metal shell is provided in the front portion with an opening. The metal ball-striking plate is fused with the metal shell by welding such that the opening of the metal shell is capped by the ball-striking plate, and that the projected fringe of the opening is fitted into the recessed periphery of the back of the ball-striking plate.
REFERENCES:
patent: 4768787 (1988-09-01), Shira
patent: 5433440 (1995-07-01), Lin
patent: 5536006 (1996-07-01), Shieh
patent: 5720673 (1998-02-01), Anderson
patent: 5967903 (1999-10-01), Cheng
patent: 6050904 (2000-04-01), Kuo
patent: 6299549 (2001-10-01), Shieh
patent: 6450896 (2002-09-01), Chen
Browdy and Neimark , P.L.L.C.
Passaniti Sebastiano
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