Games using tangible projectile – Player held and powered – nonmechanical projector – per se,... – With sound-deadening – vibration-damping – or shock-absorbing...
Reexamination Certificate
2002-08-15
2003-12-16
Chiu, Raleigh W. (Department: 3711)
Games using tangible projectile
Player held and powered, nonmechanical projector, per se,...
With sound-deadening, vibration-damping, or shock-absorbing...
C473S535000, C473S536000, C473S546000
Reexamination Certificate
active
06663515
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a racket that is composed of a head and handle both made in different materials to make the racket have an excellent anti-shock feature to prevent a player from sustaining a sport's injury due to vibration caused by striking an object.
2. Description of Related Art
“Tennis elbow” is a sport's injury common to players of tennis or other similar sports that use a racket and is caused from shock and vibration when a player strikes a ball with the racket. Therefore, racket manufacturers constantly try to produce rackets with better anti-shock features.
With reference to
FIGS. 6 and 7
, a conventional racket (
50
) is a one-piece racket and is composed of a frame (
51
), a Y-shaped neck (
52
) and a handle (
53
). The frame (
51
) made of a hollow tube forms an open oval face (
54
) with two ends so strings can be strung inside the oval face (
54
). With reference to
FIG. 5
, the hollow tube that forms the frame (
51
) further has a curved inner and outer edge so the frame (
51
) will resist deformation. The Y-shaped neck (
52
) has a forked end (not numbered) and a proximal end (not numbered). The forked end is attached to the frame (
51
) so the neck (
52
) extends out from one end of the frame (
51
). The handle (
53
) is formed at the proximal end of the Y-shaped neck (
52
).
The conventional racket (
50
) is one piece so shock and vibration generated when striking a ball is transmitted directly to the handle (
53
). Therefore, when players hold the conventional racket (
50
) at the handle (
53
) during play, they easily sustain sport's injuries such as tennis elbow caused by the vibration and shock.
To overcome the shortcomings, the present invention tends to provide an anti-shock racket to mitigate and obviate the aforementioned problems.
SUMMARY OF THE INVENTION
The main objective of the invention is to provide a racket with a head and a handle made of different materials that attenuates and damps vibration and shock efficiently.
REFERENCES:
patent: 4725059 (1988-02-01), Du Gardin et al.
patent: 4983242 (1991-01-01), Reed
patent: 5175919 (1993-01-01), Lo
patent: 5238247 (1993-08-01), Davis
patent: 5314180 (1994-05-01), Yamagishi et al.
patent: 5421574 (1995-06-01), Yamagishi et al.
patent: 5860878 (1999-01-01), You
patent: 6071203 (2000-06-01), Janes et al.
patent: 6500080 (2002-12-01), Severa et al.
patent: 2002/0165050 (2002-11-01), Severa et al.
patent: 2003/0036447 (2003-02-01), Niwa et al.
patent: 2003/0036448 (2003-02-01), Severa et al.
patent: 6-63183 (1994-03-01), None
Chiu Raleigh W.
Kamrath Alan D.
Rider Bennett LLP
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