Games using tangible projectile – Golf – Practice swingable implement or indicator associated with...
Reexamination Certificate
1999-07-02
2001-05-22
Passaniti, Sebastiano (Department: 3711)
Games using tangible projectile
Golf
Practice swingable implement or indicator associated with...
C473S305000, C473S292000, C473S313000, C473S307000, C473S312000
Reexamination Certificate
active
06234915
ABSTRACT:
BACKGROUND OF THE INVENTION
A suitable golf club to a golfer is something just like a good brush to a painter, both require delicate skills that can only be accumulated and upgraded by constant practice.
As the putting green is usually the main battlefield, in addition to skill and experience, a suitable putter is also an advantageous weapon in competition for award. Besides the material a putter is made of, a low gravity center in same height with ball center is considered a must for the putter to enable a player to putt at the so-called sweet spot. Most of the golf putters employed so far are of two-piece ensemble, which are briefly described with annexed diagrams as below:
1.
FIG. 1
shows a golf putter in two-piece ensemble of putter head
1
and neck
10
. A plurality of tapped bores
11
is aligned in the putter head
1
for screw-fixing the neck
10
by selecting one of the bores
11
before inserting a shaft
12
in the neck
10
to eliminate offset of the center of gravity A of the putter head
1
(shown in FIG.
2
). However, there can be only 2 or 3 adjustable bores
11
available owing to limited space of the putter head
1
that is insufficient to fit the individuals.
2.
FIG. 3
indicates another example of golf putter in two-piece ensemble by combining a putter head
2
and a neck
20
.
The neck
20
is screw-fixed in the putter head
2
before inserting a shaft
21
, and because the center of gravity A can not be adjusted, hence, it fails to fit players widely despite of the curved neck
20
that is designed for various striking postures and habits.
3. According to
FIG. 5
, a further example of golf putter in two-piece ensemble by combining a neck
30
and a putter head
3
before coupling with a shaft
31
. In this case, the unadjustable center of gravity A locates at an upper level than the center of gravity B of a golf ball as shown in FIG.
6
.
4. An additional balance weight is usually added to the putter head in order to have the center of gravity fixed to the best position, which cannot be easily changed further on the spot, so that a player has to prepare extra putters when he alters his striking posture.
In view of the above-described imperfections, after years of constant effort in research, the inventor of this invention has consequently developed and proposed this improved mechanism pertaining to the subject matter.
SUMMARY OF THE INVENTION
This invention relates to a three-piece golf putter, particularly to a putter having a neck made of a material in different specific gravity with its putter head and anti-shock slat in order to raise up or lower down the center of gravity, wherein the neck can be replaced easily for different specific gravity or angle of elevation so as to adjust the center of gravity and grasp the sweet spot when a player is to change his striking posture.
REFERENCES:
patent: 5116047 (1992-05-01), Phelan
patent: 5292128 (1994-03-01), Solheim
patent: 5332214 (1994-07-01), Tucker
patent: 5377979 (1995-01-01), Long
patent: 5407196 (1995-04-01), Busnardo
patent: 5511779 (1996-04-01), Meyers
patent: 5542675 (1996-08-01), Micciche
patent: 5577726 (1996-11-01), Fenton
patent: 5580051 (1996-12-01), Fisher
Dougherty & Troxell
Passaniti Sebastiano
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