US2008254921A1PendingUtilityA1

Racket frame

Assignee: PAI CHIN-DONGPriority: Apr 12, 2007Filed: Apr 9, 2008Published: Oct 16, 2008
Est. expiryApr 12, 2027(~0.7 yrs left)· nominal 20-yr term from priority
Inventors:Chin-Dong Pai
A63B 60/52A63B 49/03A63B 60/50A63B 60/54A63B 49/02
47
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Claims

Abstract

A racket frame has a head hoop, a connecting segment, at least two through holes and a handle. The head hoop has a bottom end and a string. The connecting segment is connected with the bottom end of the head hoop and has a yoke, two shafts and a throat. The yoke is formed on the bottom end of the head hoop. The shafts are respectively mounted with the yoke and each shaft has an upper end, a lower end and two sidewalls. The throat is connected to the lower ends of the shafts. The at least two through holes are formed respectively and symmetrically through the sidewalls of the head hoop or the sidewalls of the shaft between the upper end and the lower end. The handle is connected with the connecting segment and has a proximal end.

Claims

exact text as granted — not AI-modified
1 . A racket frame having
 a body having
 a head hoop having
 an inner surface; 
 a string being wound on the inner surface of the head hoop in a crisscross manner; and 
 a bottom; 
 
 a connecting segment being connected with the head hoop and having
 a yoke being formed on the bottom end of the head hoop; 
 two shafts being respectively mounted with the yoke and each shaft having
 an upper end being connected to the yoke; 
 a lower end; and 
 two sidewalls; 
 
 a throat being connected to the lower ends of the shafts; and 
 
 at least two through holes being formed respectively through the sidewalls of the shafts and each through hole having a length between 50 millimeters to 150 millimeters; and 
   a handle being connected with the connecting segment and having a proximal end connected with the throat of the connecting segment.   
   
   
       2 . The racket frame as claimed in  claim 1 , wherein there are two through holes are formed parallelly through the sidewalls of a signal shaft. 
   
   
       3 . The racket frame as claimed in  claim 2 , wherein each shaft is arc shaped. 
   
   
       4 . The racket frame as claimed in  claim 3 , wherein each through hole is elongated. 
   
   
       5 . The racket frame as claimed in  claim 3 , wherein each through hole is rectangular. 
   
   
       6 . The racket frame as claimed in  claim 3 , wherein each through hole is curved. 
   
   
       7 . A racket frame having
 a body having
 a head hoop having
 an inner surface; 
 a string being wound on the inner surface of the head hoop in a crisscross manner; 
 a bottom; and 
 two sidewalls; 
 
 a connecting segment being connected with the head hoop and having
 a yoke being formed on the bottom end of the head hoop; 
 two shafts being respectively mounted with the yoke and each shaft having
 an upper end being connected to the yoke; and 
 a lower end; and 
 
 a throat being connected to the lower ends of the shafts; and 
 
 at least two through holes being formed respectively and symmetrically through the sidewalls of the head hoop at 3-9 position in a clock system and each through hole having a length between 50 millimeters to 150 millimeters; and 
   a handle being connected with the connecting segment and having a proximal end connected with the throat of the connecting segment.   
   
   
       8 . The racket frame as claimed in  claim 7 , wherein there are two through holes are formed parallelly through the sidewalls of a signal shaft. 
   
   
       9 . The racket frame as claimed in  claim 8 , wherein each shaft is arc shaped. 
   
   
       10 . A racket frame having
 a body having
 a head hoop having
 an inner surface; 
 a string being wound on the inner surface of the head hoop in a crisscross manner; 
 a bottom; and 
 two sidewalls; 
 
 a connecting segment being connected with the head hoop and having
 a yoke being formed on the bottom end of the head hoop; 
 two shafts being respectively mounted with the yoke and each shaft having
 an upper end being connected to the yoke; and 
 a lower end; and 
 
 a throat being connected to the lower ends of the shafts; and 
 
 at least two through holes being formed respectively and symmetrically through the sidewalls of the head hoop and each through hole having a length between 50 millimeters to 150 millimeters; and 
   a handle being connected with the connecting segment and having a proximal end connected with the throat of the connecting segment.   
   
   
       11 . The racket frame as claimed in  claim 10 , wherein there are two through holes are formed parallelly through the sidewalls of a signal shaft. 
   
   
       12 . The racket frame as claimed in  claim 11 , wherein each shaft is arc shaped. 
   
   
       13 . The racket frame as claimed in  claim 12 , wherein the at least two through holes are formed respectively and symmetrically through the sidewalls of the head hoop at 4-8 position in a clock system. 
   
   
       14 . The racket frame as claimed in  claim 12 , wherein the at least two through holes are formed respectively and symmetrically through the sidewalls of the head hoop at 5-7 position in a clock system.

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