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| Number | Title | Issue Date |
| 7887444 | Racquet having articulating grommet assemblies A sports racquet including a frame, at least one grommet assembly. The frame includes a head portion coupled to a handle portion. The head portion includes a hoop having inner and outer peripheral walls. At least a first set of concave recesses and channels are form... | 02/15/2011 |
| 7691016 | Racket A racket including a string-stretching part for forming a ball-hitting face by tensionally mounting strings in string holes, formed through the string-stretching part, in which grommets are mounted respectively. As the grommets, a double-tubular grommet is mounted i... | 04/06/2010 |
| 7396303 | Sports racquet with insert members for anchoring strings The sides of a sports racquet, and optionally the tip and throat bridge, include axially extending cutout portions. An insert member, having a plurality of string port holes and optionally conventional string holes, is seated in each cutout portion. The frame and in... | 07/08/2008 |
| 7371198 | Racket frame A racket frame has a head hoop, a connecting segment, a handle and two prestressing devices. The head hoop has a bottom end and a string. The connecting segment is connected with the head hoop and has a yoke, two shafts and a throat. The yoke is formed on the bottom... | 05/13/2008 |
| 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 |
| 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 |
| 7217203 | Tennis racket A tennis racket having a racket frame defining a ball-hitting face, wherein if the upper part of the ball-hitting face is set as a 0-degree position, a string protection member is mounted on at least one portion of a head part of the racket frame in a range from a c... | 05/15/2007 |
| 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 |
| 7137912 | Tennis racket In a tennis racket having a racket frame composed of a fiber reinforced resin, the moment of inertia Ic of the tennis racket in a center direction thereof is set to not less than 13000 g·cm2 nor more than 17000 g·cm2, the moment of inertia Ig... | 11/21/2006 |
| 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 |
| 7081056 | Sports racket having a uniform string structure A sports racket, for tennis and the like sports, has an elongated handle attached to a head having a racket face, which is spanned by a uniform string structure. The head has four sides, forming a non-elliptical shape, in which the opposite sides are substantially p... | 07/25/2006 |
| 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 |
| 6964624 | Bumper guard for a sports racquet A bumper guard for attachment to a sports racquet. The sports racquet includes a frame having a head portion with an outer peripheral surface and a plurality of grommet holes formed into the head portion for supporting a string bed. The bumper guard includes an elon... | 11/15/2005 |
| 6955618 | Adjustable tension stringed racquet A stringed racquet includes a built-in, user-adjustable mechanism for changing the tension of the strings. The user-adjustable mechanism is disposed in a cavity within the handle of the racquet, and includes a mandrel over which at least some of the vertical strands... | 10/18/2005 |
| 6953064 | Grommeted web section and method of making A web having at least two types of weaves is provided. The construction of the web allows objects to be inserted into and through the web without detriment to the yarns of the web. The web is particularly useful for applications requiring the insertion of fasteners ... | 10/11/2005 |
| 6852048 | Guiding and vibration dampening string tubes for sports racquets A string guide system is disposed within the hollow stem of a sports racquet and guides the continuous string at least through a turn for redirecting the continuous string back out of the cavity and toward the string bed. The redirection defines shared ends of a pai... | 02/08/2005 |
| 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 |
| 6589125 | Compound material frame body without the need of drilling holes The present invention provides a compound material frame body without the need of drilling holes. A plurality of symmetric embedded tubes are clamped between two compound material pipe bodies. An outmost compound material layer sheathes the compound mater... | 07/08/2003 |
| 6530851 | Ball racket with damped two part profile This invention refers to a novel ballgame racket, especially a tennis racket, including a racket head formed by a tension frame with stringing, and also having a grip portion joining the tension frame, for example by means of a crossing and formed by a gr... | 03/11/2003 |
| 6527656 | Two-piece grommet assembly for a sports racquet A two-piece grommet assembly for a sports racquet. The sports racquet includes a frame having a plurality of grommet holes and at least one racquet string. The grommet assembly includes first and second grommet members. The first grommet member includes a... | 03/04/2003 |
| 6506133 | Racket with apparatus for enhancing elasticity of network A racket has a main body, which has a head frame, an Y-shaped shaft, a handle, and a network, which string the head frame. Two elastic supporting devices dispose on the head frame. Each of the elastic supporting devices has an inner member, an outer membe... | 01/14/2003 |
| 6503161 | Game racket including a string suspension system A racket includes a frame, at least one string and a particular portion The frame includes a handle portion and a head portion. The string is connected to the frame to provide a string tension. The particular portion is composed of a non-fluid material an... | 01/07/2003 |
| 6440015 | String fastener for a racket A string fastener for a racket includes an annular U-shaped wall, a plurality of tubes spaced apart equidistantly on inner side of the U-shaped wall, and each tube has a string hole inserted therethrough and in a racket frame. The U-shaped wall is formed ... | 08/27/2002 |
| 6336877 | Racket stringing guide recessed on the frame side A racket includes a frame in which through-holes are made, shank carrying cleats including a pair of shanks which are engaged in the holes, and a stringing mounted on the frame by threading through the shank-carrying cleats, so as to produce a string patt... | 01/08/2002 |
| 6319158 | Game racket with elongated slot in yoke portion A game racket includes elongated main strings which extend through a slot in a yoke portion of the head. In one embodiment the lower ends of the main strings pass through string holes in a second throat bridge below the first throat bridge. In another emb... | 11/20/2001 |
| 6217466 | Racquet and method of stringing a racquet The invention provides an improved racquet and a method of stringing a racquet wherein the racquet includes grommets that are divided into visually differentiated groups in order to make stringing the racquet quicker and easier. According to one embodimen... | 04/17/2001 |
| 6179735 | Apparatus and method for maintaining differential tensions in the strings of a sporting racket The present invention relates to an method and apparatus for springing sporting racquets to maintain differential tensions between racquet strings within the racquet, so that it is possible to provide racquets having predetermined properties of elastic qu... | 01/30/2001 |
| 6074315 | Racquet with visually differentiated grommets and method of stringing thereof The invention provides an improved racquet and a method of stringing a racquet wherein the racquet includes grommets that are divided into visually differentiated groups in order to make stringing the racquet quicker and easier. According to one embodimen... | 06/13/2000 |
| 6062994 | Reinforced racquet with flat string bed A sports racquet has a head frame that includes a support member and an inwardly directed alignment member or fin. String segments are strung from a central strung area through respective holes in the fin, around the support member and back through furthe... | 05/16/2000 |
| 6050909 | Game racquet with string slots in inner wall A game racquet includes a frame having an elongated shaft which provides a handle and a hoop-shaped head which supports a generally planar string bed. The head includes a lower portion attached to the shaft, a pair of opposed side portions, and an upper p... | 04/18/2000 |
| 6027419 | Method of tensioning the strings in a racquet A method of stringing a racquet includes independently tensioning a plurality of strings in the racquet and maintaining the independent tensioning. Individual strings are held and their tensioning maintained using cleats and grommets. In this fashion, the... | 02/22/2000 |
| 5993337 | Multi-hole grommet for sports racquets A grommet member for use with a sports racquet comprises a grommet strip from which a plurality of hollow grommet pegs project for receiving racquet strings. The strip additionally includes at least grommet having at least two holes for receiving a pair o... | 11/30/1999 |
| 5944625 | Cushion bumper assembly for sports racquets A bumper strip assembly for sports racquets comprises a bumper strip portion, which may be a conventional bumper strip, and preferably a pair of polymeric felt or urethane foam strips. The cushion strips preferably have a density in the range of 0.35-0.60... | 08/31/1999 |
| 5944624 | Notched, slotted grommet for sports racquet A sports racquet includes grommet members anchoring the strings in at least the central regions of the string bed which include grommet pegs which have grommet holes that, in cross-section, are elongated in a direction perpendicular to the string bed, and... | 08/31/1999 |
| 5890978 | Racket for ball games, in particular tennis or squash racket In a tennis racket with a frame (1) forming the striking head and a tensioning system consisting of crossed strings, where the strings (7) are secured by being passed through apertures in a frame component (2) and a component supported by the frame compon... | 04/06/1999 |
| 5879248 | Stringed sports racquet incorporating interlocking string clamps The sports racquet of the present invention utilizes a series of interlocking string clamping assemblies which are adapted to be received within a corresponding series of passageways formed in the surrounding frame structure of the racquet, and wherein ea... | 03/09/1999 |
| 5863267 | Racket device and associated method of stringing a racket A racket is provided such as that used in the game of tennis, racquetball, squash, badminton and the like. The racket has a frame head that defines the periphery of a generally oblong shaped area. A plurality of apertures are periodically disposed along t... | 01/26/1999 |
| 5762570 | Game racket having a head frame capable of absorbing shock A game racket has a head frame consisting of a string protective strip and a shock-absorbing strip. The string protective strip is provided with a plurality of string protective jackets tubular in shape and having an axial through hole. The string protect... | 06/09/1998 |
| 5720680 | Stringed racket tensioning mechanism A mechanism for adjusting string tension of stringed rackets allows for increasing the tension of the racket strings without having to release the racket strings, without destabilizing the racket and without costly or troublesome aids. The tensioning mech... | 02/24/1998 |
| 5702313 | Game racket with primary and secondary yokes The present invention relates to a game racquet with employs a hitting area composed of a longitudinal and a lateral string. Specifically, the present invention is directed to such a racquet with a frame that allows for centrally disposed longitudinal str... | 12/30/1997 |
