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| Number | Title | Issue Date |
| 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 |
| 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 |
| 7264579 | Device and method for strengthening the elbow A device and method for preventing the damage underlying lateral epicondylitis (tennis elbow) or medial epicondylitis (golfer's elbow), or both lateral epicondylitis (tennis elbow) and medial epicondylitis (golfer's elbow), or for treating the damage underlying late... | 09/04/2007 |
| 7229369 | Ball sport racquet especially tennis racquet In a ball sport racquet, for example, a tennis racquet, made up of a main or racquet head frame, a throat with a throat bridge and side bridges diverging to the throat bridge and extending into a shaft, and strings fastened on the main frame and on the throat bridge... | 06/12/2007 |
| 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 |
| 6998525 | String tensioning device for a string instrument String tensioning system for a stringed instrument having an instrument body, at least one tensionable string that is fixed at both its ends to the instrument body, and a chamber accommodating a portion of the at least one tensionable string when the portion is arra... | 02/14/2006 |
| 6971964 | Compound spring element for a game racket A compound spring element for a game racket frame is provided. A resilient casing forms the spring element, with its profile having a first side portion and a second side portion defining at least one space between them. The at least one space contains at least one ... | 12/06/2005 |
| 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 |
| 6962541 | Apparatus for a lacrosse stick head An apparatus used in playing the sport of lacrosse. The apparatus is located in a lacrosse player's stick head. During lacrosse play, a player may find it advantageous to use this invention to finely adjust the lengths and tensions of the thongs or netting material ... | 11/08/2005 |
| 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 |
| 6935975 | Racquet with channeled handle for receiving racquet string A sports racquet extending along a longitudinal axis. The racquet includes a head portion and a handle portion. The head portion defines a string bed area. The handle portion has a distal end and a proximal end. The distal end of the handle portion is coupled to the... | 08/30/2005 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 5667216 | String assembly for a racket There is defined a racket assembly comprised of a frame portion and a handle portion wherein the frame portion is provided with orifices for tensioning each string wherein each string assembly is provided with a cap member at one end for cooperating in fi... | 09/16/1997 |
| 5458331 | Game racket with adjustable string suspension system The string suspension system comprises a primary racket frame (12) joined about the racket head (14) by two suspension frames (22 and 22') to form dual volumetrically adjustable air chambers (44 and 44') within a head assembly (16). Within each of the two... | 10/17/1995 |
| 5294116 | String tensioning system for ball racket A string tensioning system is provided for ball rackets, in particular for tennis rackets and squash rackets. The string tensioning system, formed by a string tensioning member (1), is insertable between the substantially parallel disposed strings (2 to 7... | 03/15/1994 |
| 5029857 | Frame with adjustable string tensioning means A tennis racket frame (1) strung with strings (2) under tension has two ends (4, 5) neighboring each other, joined in each instance by a flexible brace (6, 7) to a holding member (3), which ends can be spread apart or drawn together by tensioning means (2... | 07/09/1991 |
| 4995608 | Stringed frame with adjustable tensioning A frame (1), for example for a tennis racket, is arranged in a plane and is designed to be deformable by bending within its plane and is strung on its interior with strings (2) or the like under tension. At a junction, the frame (1) is fixedly joined to a... | 02/26/1991 |
| 4976433 | Racket, and more particularly a tennis racket According to an illustrative example of this invention, a gas spring is incorporated into a tennis racket. This gas spring is connected with some of the strings such as to maintain a predetermined tension within the strings irrespective of possible elonga... | 12/11/1990 |
| 4880234 | Training racket for propelling baseballs and softballs A training racket for propelling baseballs and softballs comprising an open frame having an elongate handle attached to and extending outwardly from an end of the frame and a net having a flexible perimeter smaller than the perimeter of the open frame hel... | 11/14/1989 |
| 4783072 | Sporting equipment A tennis racket has a head having head strings passing through string holes and lieing substantially in a single plane. There is a groove running along a portion of the outside periphery of the head. A flexible member is slidably received in the groove. T... | 11/08/1988 |
| 4765621 | Tennis racquet The present invention relates to a tennis racquet in which the stringing is at least partially constituted by a single string which passes around rollers disposed in the frame and of which at least one end is fastened to a tensioning device, arranged in t... | 08/23/1988 |
| 4754968 | Racket having unique stringing pattern The lengths of string (22 and 24) of a racket, more specifically a tennis or squash racket, are trained over bend points of the frame (12) with a low degree of friction and are so strung backwards and forwards across the frame that the spacing between two... | 07/05/1988 |
| 4732384 | Racquet having centralized sweet spot A racquet for striking a ball or other projectile in a game, having a stringed head, in which the racquet is so constructed that, for an impact in the region of the sweet-spot, each of those strings which yield do so substantially symmetrically about a pl... | 03/22/1988 |
| 4721304 | Racket string tensioning device A tension adjusting device for rackets. The system allows the player to adjust the tension of a number of strings while in the course of a match. By rotating a device having an offcenter hole and irregular sides the string which through it passes is exten... | 01/26/1988 |
| 4662632 | String tensioning device for use on rackets for ball games Device for the adjustment of ball game rackets which is intended to bring about the desired tension in a racket surface through adjustment of the tension in the strings and which consists of a triangular holder provided with a groove for the string and wi... | 05/05/1987 |
| 4613138 | Tennis racquet with flexible membrane frame A tennis racquet which utilizes an energy input system is disclosed. The racquet head employs a flexible membrane which is held in place by membrane carriers secured to the interior of the head and to which the strings are attached. This membrane extends ... | 09/23/1986 |
| 4595201 | Tensionable racket having unique stringing pattern The lengths of string (22 and 24) of a racket, more specially a tennis or squash racket, are trained over bend points of the frame (12) with a low degree of friction and are so strung backwards and forwards across the frame that the spacing between two pa... | 06/17/1986 |
| 4593905 | Racquet stringing system with string tension indicating means A racket having strings strung across the head portion of the frame in which the strings have threaded end portions for engagement with correspondingly threaded nuts. Additionally, the threaded portion of the string can extend the entire length of the str... | 06/10/1986 |
| 4566695 | Game racket having adjustable string mounts A racket having a rectangularly shaped head portion with holes located therein for the reception of adjustable string mounts. The adjustable mounts consist of a threaded end for engagement with a nut and two looped portions at the opposite end for engagem... | 01/28/1986 |
| 4512576 | Strung racket and tension adjusting device therefor A tension adjusting device for a racket consists of two engageable parts. A first part is oblong and U-shaped in cross-section and is attached to one side of the strung surface of the racket. The second part has a cross-sectional width that is smaller tha... | 04/23/1985 |
| 4340225 | Game racket and apparatus for adjusting the tension in the strings of a game racket A game racket and apparatus for adjusting the tension in the strings of a game racket. The game racket has a frame which forms a head. A handle is connected to the frame. The frame has a series of holes around its circumference. String or wire is laced th... | 07/20/1982 |
| 4206917 | Sports racquet The strings of a tennis racquet are tensioned by passing over a liquid-containing flexible tube in the frame of the racquet with means provided in the handle of the racquet for providing pressure to the liquid in the tube to increase or decrease the tensi... | 06/10/1980 |
| 4203597 | Throatless tennis racquet An adjustable throatless tennis racquet including a head portion formed of two similar members disposed in spaced relation with respect to one another and separated by a plurality of spacers fixedly maintained therebetween by a plurality of pin members, t... | 05/20/1980 |
| 4163553 | Tennis racket and stringing method A tennis racket head is strung with string sections between frame support points formed into zig-zag segments which have multiple junction points with other string sections to hold the strings in the zig-zag pattern. In a preferred embodiment, the segment... | 08/07/1979 |
