Games using tangible projectile – Player held and powered – nonmechanical projector – per se,... – Racket or paddle; accessory therefor
Patent
1996-05-01
1998-06-09
Stoll, William E.
Games using tangible projectile
Player held and powered, nonmechanical projector, per se,...
Racket or paddle; accessory therefor
A63B 4902
Patent
active
057625719
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to tennis racquets and, in particular, to a tennis racquet which has a relatively thin frame in the deemed mid-section of the racquet when compared to the thickness of the frame of the other sections of the racquet. As used in this specification the thickness of the frame of the racquet is the dimension measured from the front and back faces of the frame at any given point.
BACKGROUND TO THE INVENTION
Tennis racquets have normally had medium to relatively thick frames providing support around their head and mid-section. However, with the advent of newer and stronger materials it is believed that superior performance characteristics such as increased control and manoeuvrability can be achieved over the normal performance characteristics of existing racquets if thinner frames are used. It is the aim of this invention to provide performance characteristics which are superior to those of existing racquets. In addition tennis racquets with an ultra thin portion of its frame will also allow the creation of more spin on shots, provide less wind resistance which enhances swing speeds and greatly reduces racquet vibration and shock upon impact with a ball, which in turn, reduces the occurrence of arm and related injuries.
These advantages can be accomplished by means of the invention described herein. Thus it has been found advantageous to provide a tennis racquet which has an ultra thin portion of its frame.
OBJECT OF THE INVENTION
The present invention has therefore been conceived out of the need to provide a tennis racquet which provides superior performance characteristics. At the very least, the invention provides an alternative to known tennis racquet construction.
DISCLOSURE OF THE INVENTION
According to one aspect of the present invention there is provided a tennis racquet comprising
a handle having a free end,
a racquet head defined by a loop frame,
a bridge that defines a portion of the closed loop frame of the racquet head,
a throat connecting the racquet head to the handle, and
the loop frame having a first half remote from the handle and a second half being closer to the handle,
wherein a mid-section of the racquet extends from and includes the second half of the loop frame and the throat, to a point approximately 20 centimeters from the free end of the handle, characterised in that the thickness of the racquet of any part of the mid-section is less than approximately 60% of the maximum thickness of the racquet in the first half of the loop frame.
The loop frame of the racquet can either be a closed loop frame or an open loop frame.
BRIEF DESCRIPTION OF THE DRAWINGS
Some embodiments of the present invention will now be described with reference to the drawings in which:
FIG. 1 is a face view of a games racquet of a first embodiment,
FIG. 2 is a side view of a games racquet of FIG. 1,
FIG. 3 is a face view of a games racquet of a second embodiment.
BEST MODE OF CARRYING OUT THE INVENTION
A tennis racquet 1 of a first embodiment is illustrated in FIGS. 1 and 2. The racquet 1 is illustrated as a frame only without the strings attached. The racquet 1 has a racquet head 2 connected to a handle 3 by a throat 4 and shaft 5 with the shaft 5 being connected to the handle 3 and two members of the throat 4 being connected between the shaft 5 and the racquet head 2. The handle 3 has a butt 6 at its free end. The racquet head 2 comprises a closed loop frame 7 which has a bridge 8 as a portion of the closed loop frame 7. The bridge 8 forms the portion of the closed loop frame 7 between the connection points of the two members of the throat 4.
The racquet head 2 can be divided into two halves with a top half 9 being remote from the handle 3 with the lower half 10 being closer to the handle 3. The lower half 10 includes the bridge 8. The two halves 9 and 10 can be visualised by identifying the tip 11 or the 12 o'clock position, at the top of the racquet head 2; and the base 12 or 6 o'clock position, at the base of the racquet head 2. By visualising a line drawn between the t
REFERENCES:
patent: 1539019 (1925-05-01), Nikonow
patent: 4165071 (1979-08-01), Frolow
patent: 5037098 (1991-08-01), Davis
patent: 5183265 (1993-02-01), Umlauft et al.
Schindler Edwin D.
Stoll William E.
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