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| Number | Title | Issue Date |
| 8038551 | Method for manufacturing a racquet frame for sports racquet and a racquet frame thereof A racquet frame has one or more string holes formed therein and a string bed plane, along which the string holes extend. The racquet frame is preferably formed by providing a frame bearing structure, which is aimed at providing flexural stiffness to said racquet fra... | 10/18/2011 |
| 7806789 | Sports racket A sports racket is provided with a uniform elongated string bed, uniform main strings and cross strings segments, a uniform elongated sweet spot, a uniform head structure, robust yoke design, and handle. ... | 10/05/2010 |
| 7438654 | Structure of toy tennis racket Structure of toy tennis racket, which mainly improves composition of hitting face of toy tennis racket; it stretches string that one side is adhesive across holes around head of tennis racket in horizontal and longitudinal to make network, so that one side of this n... | 10/21/2008 |
| 7431673 | Racket In a racket frame, a yoke part is disposed between left and right portions of a bifurcated throat part continuous with a head part and with a shaft part. A ball-hitting face is formed with the yoke part and the head part. The head part and the yoke part have a plura... | 10/07/2008 |
| 7371197 | Safety racket A safety racket includes a head frame, a handle, a connecting portion, several nail members and a string. The head frame has a plurality of through holes. The connecting portion connects between the head frame and the handle. The nail members each have a head and at... | 05/13/2008 |
| 7326133 | Racket assembly that warns of a fatigued string condition A racket assembly having a racket head that is supported by a handle. A string is strung across the racket head forming a string face. The string used in the string face is statistically likely to fail after the string face has been impacted a precalculated number o... | 02/05/2008 |
| 7309299 | Sports racquet with frame openings A sports racquet has a plurality of opposed string holes for anchoring the ends of the strings, at least one pair of contiguous string holes are replaced with an enlarged string hole having opposed bearing surfaces for securing the ends of a pair of contiguous strin... | 12/18/2007 |
| 7285062 | Racquet having cantilevered hoop portions A sports racquet including a frame, a string bed, and at least one cantilevered member. The frame includes a head portion coupled to a handle portion. The head portion includes a distal region, first and second side regions, and a proximal region. A string bed is fo... | 10/23/2007 |
| 7273430 | Tennis racket frame A tennis racket frame is composed of a laminate of prepregs each containing carbon fibers serving as a reinforcing fiber thereof. At least one part of layers of the laminate is formed as a hard layer consisting of a prepreg composed of the reinforcing carbon fibers ... | 09/25/2007 |
| 7273429 | Ball game device A ball game device comprising a body 10 adapted to receive a hand 24 and a wrist 25 of a user 26, the body 10 presenting two hitting surfaces 14 for hitting a ball 20. The body 10 comprises two panels 12... | 09/25/2007 |
| 7226374 | Lacrosse head and method of forming same A lacrosse head with improved weight and handling characteristics includes a frame element having a base portion, a scoop portion, and a pair of opposing sidewall portions extending between the base portion and the scoop portion. The frame element includes one or mo... | 06/05/2007 |
| 7201681 | Device for aligning strings of a racquet A handheld device for realigning the strings of a sports racquet, wherein the device is sized to fit into a clothing pocket of the user. The device comprises a body portion from which one or more alternately shaped protrusions extend. The protrusions generally inclu... | 04/10/2007 |
| 7140985 | Stringing indicia for sports racquets In a sports racquet, anchor points for a string are marked with indicia to assist a stringer in stringing from one anchor point to a next anchor point. In a preferred embodiment, one of the anchor points is a bearing assembly located within a hollow cavity in the ra... | 11/28/2006 |
| 7140984 | Racket for ball games and production process The present invention relates to an improved racket for ball games, in particular a tennis racket, squash racket, badminton racket, racquet ball racket or paddle tennis racket comprising a frame consisting of a racket head and a handle portion connected thereto and ... | 11/28/2006 |
| 7097576 | String bearing assemblies for sports racquets A bearing assembly is at least partly disposed within the hollow stem or handle of a sports racquet. A plurality of curvilinear channels are disposed at different lateral locations in a direction which is at a substantial angle to the longitudinal axis of the racque... | 08/29/2006 |
| 7077767 | Racket for ball games and production process The present invention relates to a racket for ball games, in particular a tennis racket, squash racket, badminton racket, racquet ball racket or paddle tennis racket comprising a frame consisting of a racket head and a handle portion connected thereto and being form... | 07/18/2006 |
| 7077768 | Composite racquet with double tube head frame A sports racquet frame is built of a composite of laminations of fibrous material as impregnated by a thermosetting resin. The head section of the frame has an upper tube preferably disposed above the string bed plane and a lower tube preferably disposed below the s... | 07/18/2006 |
| 7074142 | Racket frame A tennis racket frame (10), including a sleeve composed of a fiber reinforced resin, having a weight not less than 180 g nor more than 270 g, when strings are not mounted in a ball-hitting face thereof surrounded with a head part thereof. Supposing that the s... | 07/11/2006 |
| 7070525 | Racket for ball games The present invention relates to a racket, in particular a tennis racket or squash racket exhibiting a particularly suitable stiffness and/or strength behavior. For this purpose, the ball game racket of the present invention comprises a racket head, a heart region a... | 07/04/2006 |
| 7044869 | Racket for ball games and production process The present invention relates to an improved racket for ball games, in particular a tennis racket, squash racket, badminton racket, racquet ball racket or paddle tennis racket, comprising a frame consisting of a racket head and a handle portion connected thereto and... | 05/16/2006 |
| 7012111 | High-specific-gravity EPDM composition, dynamic damper made from the composition, tennis racket with the dynamic damper, and radiation-shielding material comprising the composition A high specific-gravity EPDM composition consisting of a mixture of EPDM containing diene at less than 4.5 wt % and ethylene at not less than 58 wt % nor more than 80 wt % and having a Mooney viscosity ML1+4 not less than 50 nor more than 170 at 125° C. ... | 03/14/2006 |
| 6974397 | Racket with self-powered piezoelectric damping system According to one embodiment of the invention, a sports racket includes a racket frame comprising a head portion, handle portion and a throat portion joining the head portion to the handle portion. The racket frame also comprises a self-powered piezoelectric damping ... | 12/13/2005 |
| 6966855 | Racket with capability of vibration absorption A racket includes a frame having a rim and a connection portion at an end of the rim, a handle fixed at a distal end of the connection portion, an elastic member attached on a predetermined portion of the frame, and a cover layer wrapped around the frame and the ela... | 11/22/2005 |
| 6958104 | Sports racket with undulations in frame interior surface A sports racquet comprises a handle and a frame coupled to the handle. The frame includes an inner portion and an outer portion located substantially opposite the inner portion. The inner portion of the frame include a plurality of undulations that extend towards an... | 10/25/2005 |
| 6811502 | Racquet with elongated peripheral main string segments and enlarged sweet spot A sports racquet including a frame, a yoke and a string bed. The frame includes a head portion, a handle portion, and a throat portion positioned between the head and handle portions. The head portion includes an upper region, and first and second side regions. The ... | 11/02/2004 |
| 6790166 | Balance and coordination teaching method A method for improving balance and coordination associated with the performance of a sport motion. The method comprises the initial step of providing a training apparatus, the latter comprising a stationary base member having first and second platforms rotationally ... | 09/14/2004 |
| 6761651 | Aluminum tennis racket An aluminum tennis racket includes a head, a shaft and a handle. The head and the shaft are made of hollow aluminum tubing with a series of ripples. The ripples are defined on a sidewall of the hollow aluminum tubing, and the ripples increase the strength of the hea... | 07/13/2004 |
| 6634968 | String for a racket A string for a sports racket includes a base core formed from at least a first filament, an intermediate layer formed from a plurality of second filaments and enclosing the base core, and a first sheath layer enclosing the intermediate layer. At least one... | 10/21/2003 |
| 6626774 | Stringless sports racquet A stringless sports racquet made from a used stringed racquet comprises a handle, a head frame, a flexible scoop provided on a back side of the head frame for catching, tossing, and scooping up a ball, and a flexible crosspiece provided across a back side... | 09/30/2003 |
| 6609981 | Aerodynamic shaft for golf club A shaft adapted to move through a fluid, wherein the shaft has a surface, diameter, and length, and wherein the shaft comprises at least two ridges extending along at least a portion of the length, such that fluid resistance encountered by the shaft as it... | 08/26/2003 |
| 6592475 | Sports racket having a tubular frame with reinforcing element A sports racket frame including a main body which has an intermediate portion in the vicinity of which is provided at least one reinforcing member which defines, with the intermediate portion, an inner volume therebetween which extends about an outer peri... | 07/15/2003 |
| 6551206 | Multi-purpose racket A multi-purpose racket. The multi-purpose racket includes a striking blade and a shaft. The striking blade includes a hollow substrate consisting of first and second flat sheets and partition walls successively arranged between the two flat sheets to form... | 04/22/2003 |
| 6527655 | Counting racket A counting racket comprises a racket assembly defined by a handle, a throat and a racket face. The throat extending from the handle to the racket face. The racket assembly housing a electronic components which comprise: a controller, a memory, a power sou... | 03/04/2003 |
| 6450904 | String for a racket A string for a sports racket includes a toothed core made of a first plastic material and having a toothed outer surface, and a sheath layer made of a second plastic material and molded over the core so as to be bonded to the toothed outer surface. The fi... | 09/17/2002 |
| 6447412 | Sports racket with undulations in frame interior surface A sports racquet comprises a handle and a frame coupled to the handle. The frame includes an inner portion and an outer portion located substantially opposite the inner portion. The inner portion of the frame include a plurality of undulations that extend... | 09/10/2002 |
| 6416432 | Composite sports racket A sports racket comprising a frame made of an energy absorbing structural laminate. The structural laminate comprises: (a) a first layer of composite material comprising x1 plies; wherein at least 0.5x1 plies contain fibers arranged ... | 07/09/2002 |
| 6361451 | Variable stiffness shaft An variable shaft, for example for a golf club. A hollow shaft has a cable or wire in the center, and means for varying the tension of the cable or wire. Increasing tension on the cable or wire places the shaft in compression and thereby reduces its bendi... | 03/26/2002 |
| 6358165 | Throatless squash racquet A throatless squash racquet includes a hollow tubular frame, preferably of graphite, bent to form a head in which the outer portion is generally circular. The opposing legs of the tubular frame curve inwardly toward one another and then converge linearly.... | 03/19/2002 |
| 6293878 | Tennis racket with vibration damping member A tennis racket including a vibration damping member located in the vicinity of a position of a racket frame at which a large amplitude is generated when the tennis racket hits a tennis ball. The vibration damping member includes a mass adding part, such ... | 09/25/2001 |
| 6257996 | Roofball A game of two players using paddles to hit a ball against a roof. The roof has a pitch of approximately 6/12 with a front edge approximately eight feet above ground level. The roof having a length of approximately 50 feet and a height of approximately 25 ... | 07/10/2001 |
