Games using tangible projectile – Golf – Club or club support
Reexamination Certificate
1998-12-07
2001-11-13
Chapman, Jeanette (Department: 3711)
Games using tangible projectile
Golf
Club or club support
C473S346000, C473S349000
Reexamination Certificate
active
06315678
ABSTRACT:
TECHNICAL FIELD
The present invention relates to golf clubs and golf club sets. More particularly, the present invention is directed to golf clubs and golf club sets which are weighted in a particular manner to control backspin and striking force or power.
BACKGROUND ART
One of the profound pleasures of golfing is achieved when the ball is hit properly so that it travels in a desired direction for desired distance. The frequency of hitting a ball with such accuracy increases proportionally with one's skill level. However, a large population of golfers does not regularly achieve such accuracy and therefore, it is a very rewarding and exhilarating experience which most golfers enjoy.
Over the years, golf clubs have been improved to make it easier for golfers to hit balls more accurately. For example, a number of improvements have been developed to increase the sweet area of club heads.
In addition to hitting a ball for distance and direction, it is possible to design golf clubs which control the extent a ball will roll once it hits and lands on the ground. Generally such performance characteristics are achieved by the designs of the loft angles and striking surfaces.
Numerous clubs have been developed that have low centers of gravity, or are based on changes in the depth of the center of gravity or the like.
The present invention provides golf clubs which are designed to control backspin and striking force or power.
DISCLOSURE OF THE INVENTION
According to other features, characteristics, embodiments and alternatives of the present invention which will become apparent as the description thereof proceeds below, the present invention provides a golf club including:
a shaft;
a head having a mass, a face, a bottom, a top which extends between the face and the bottom, and opposed sides; and
a weight located adjacent the top of the head between the face and the bottom thereof and positioned so as to change a focus of the mass from an unweighted focal position.
The present invention also provides a golf club including:
a shaft;
a head having a mass, a face, a bottom, a top which extends between the face and the bottom, and opposed sides; and
a weight located adjacent the face of the head between the bottom and top and positioned to provide a moment of inertia which causes an effective change in a loft angle of the face at impact when a ball is struck by the club.
The present invention also provides for sets of golf clubs which include the use of weights in the faces of the clubs and/or weights in the tops of the club heads.
The present invention further provides a golf club head includes:
a head having a face, a bottom, a top which extends between the face and the bottom, and opposed sides;
a weight provided adjacent the top which provides a focal change in the mass of the head from an unweighted focal position; and
another weight provided adjacent the face which provides a moment of inertia when the face strikes a ball.
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Aneeging Sports Co., LTD
Baker & Daniels
Blau Stephen L.
Chapman Jeanette
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