Matches 1 - 50 out of 107 1 2 3 >
Match Document Document Title
7503860 Sports racquet with multi-section frame  
A sports racquet frame is formed from a plurality of frame sections, some sections formed of a single tubular member and other sections formed of double tubular members. The double tube sections...
7297080 Game racquet with separate head and handle portions for reducing vibration  
A game racquet includes head portion and a handle portion. The head and handle portions include one or both of a fiber-reinforced thermoset material and a fiber-reinforced thermoplastic material....
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...
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·cm 2 nor...
7131920 Racket frame  
A racket frame including a first laminate composed of a plurality of first prepregs consisting of fiber reinforced resin and a second prepreg, consisting of fiber reinforced resin, which is layered...
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...
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...
7059981 Racket frame  
A racket frame ( 10 ) including a laminate having not less than two fiber reinforced resinous layers layered one upon another and one or more modified fiber reinforced resinous layers ( 20 ) each...
6688997 Racket with reduced yoke rigidity  
A racket frame ( 1 ) has a pipe-shaped racket-frame body ( 2 ) made of a fiber reinforced resin and composed of a head ( 3 ), a throat part ( 4 ), a shaft part ( 5 ), and a grip part ( 6 )...
6663514 Racket with vibration damping yoke  
A frame body ( 2 ) is formed separately from a yoke ( 10 ) connecting right and left parts of the frame body ( 2 ) to each other. The yoke ( 10 ) and the frame body ( 2 ) are connected to each...
6663515 Racket with a head and a handle both made of different materials  
A racket is composed of multiple sections of tubes made of different material with resilient material bonded between the tubes at the joints to attenuate vibration and shock and thus make striking...
6638187 Racket frame without the need of drilling holes  
An improved racket frame without the need of drilling holes comprises two compound material pipe bodies. A plurality of U-shaped embedded tubes are uniformly clamped between the two pipe bodies...
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...
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...
6440016 Racket of a metal tube combined with fiber material  
A racket of a metal tube combined with fiber material includes a metal frame having a hollow interior and two free ends with sloped end surfaces respectively inserted in with an air-filling tube...
6319159 Game racket frame with wooden cover layer  
A game racket frame is formed of a main body and a wooden layer. The main body is formed of an annular head with string holes, a handle, and a neck connecting the head and the handle. The head and...
6302812 Hybrid composite racket frame  
A games racket frame comprising a main frame (1) in the form of a hollow tubular structure made of a fibre reinforced composite including a thermosetting material, and at least one additional...
6234921 Sports racquets with tripod weighting  
A sports racquet has a lightweight frame and a pair of pods, having an increased cross-sectional width, at the 11 o'clock and 1 o'clock positions of the head. The pods also preferably have an...
6071203 Two piece sports racquet  
A composite sports racquet includes a head portion which is formed by an upper frame half and a lower frame half. Each frame half is a tubular frame section, and includes a generally flat wall. The...
6012996 Game racket frame made of fiber reinforced plastic  
A game racket frame of fiber reinforced plastic consists of a head formed of an oval main body which is composed of a first inner tube, a second inner tube, and an outer tube. The inner tubes are...
5922255 Method of manufacturing a racket frame and throat  
A racket frame and throat unit is prepared by injection molding using a mold with a mold cavity defining the oval frame and the throat. The method includes first injecting a first quantity of a...
5897447 FRP racket and method for producing the same  
A FRP racket having a frame includes fibre reinforced plastic containing resin and reinforcing fibre and which is composed of a top portion which forms the string face, a grip region and a throat...
5700210 Racket frame and process for producing the same  
A racket frame, which has a frame main body 12 made of a fiber reinforced plastic, an ionomer film 13 covering the frame main body 12, and a coating film 15 formed over the ionomer film 13, is...
5551689 String suspension and frame construction for sports rackets  
A sports racket which is made by joining longitudinal sections of a racket, particularly half sections of a racket, along a plane parallel to the center plane through the playing surface of the...
5516100 FRP racket frame and a method for producing the same  
In production of a tennis or badminton racket frame in a mould under application of heat with pressure, an impervious tube is inserted into an FRP tubular material, a pair of such tubular materials...
5507486 Tennis racket frame  
A tennis racket frame, made of fiber-reinforced resin, in which the volume percentage of aromatic polyamide fiber and/or all-aromatic polyester fiber of all fiber-reinforcing materials of a throat...
5487806 Method for embodying a flexible tubular element impregnated with resin to be subsequently moulded  
According to this method windings of reinforcing fibers are impregnated with resin and are wound, along a given length, around a flexible sheath placed onto a rigid rotary-driven mandrel. At least...
5482774 Composite prepeg and tennis rackets using the same  
A composite prepreg for producing a tennis racket, which is light and tough and superior in flexibility and vibration absorption abilities, comprises thermosetting resin and reinforcing fibers,...
5419554 Sports racket frame  
A sports racket frame including a head portion and a handle portion formed from unidirectional high strength fibers impregnated with thermoplastic resin in the form of a sheet containing a...
5417418 Monoshaft composite tennis racquet  
A monoshaft tennis racquet has a frame head that circumscribes a stringing area, and a shaft connected to the opposite ends of the head. Either the head or the shaft, and preferably both, are...
5374058 Tennis racquet  
A tennis racquet comprising a continuous convex bow containing a plurality of interlaced strings attached under tension, and a handle formed integrally with the bow. The racquet is free of a yoke...
5368295 Tennis racket  
A tennis racket is made lighter than conventional tennis rackets yet has a higher center of percussion and a higher frequency of vibration. The head of the racket is ovoid, and the widest part of...
5344139 Racket shaft mounting device  
A racket shaft mounting device includes a head frame to hold a network of catgut, and a tubular shaft having a front end connected to the head frame by a connecting device and a rear end terminated...
5342045 Reverse sunburst string pattern for racquetball rackets  
A game ball racket with a reverse sunburst string pattern comprising a frame shaped to have its free ends extend parallel to form a handle, with its central extent in a general loop shaped...
5322249 Method of making game racket frame of plastic compound material  
A method of making game racket frame of plastic compound material includes a tubular body, which is formed by a bendable inner tube wrapped orderly and windingly with the cured thermoplastic...
5306005 Tennis racket  
A generally oval tennis racket characterized in that its strung surface comprises five zones: a central zone (A) including the geometric center (M) and the center of percussion (P) and having at...
5249799 Racket including a metal reinforced throat section  
An improved racket includes a metal frame having a throat section and two curved portions extending in the throat section and converging to a point where the throat section connects the handle...
5242720 Cohesive finishes for composite materials  
An overlay of sheet material that is impregnated with thermosetting resin--typically a fabric of a type including metallic, synthetic fiber, natural fiber and ceramic cloths impregnated with epoxy...
5242162 String holes of a sports racket frame  
A sports racket frame with improved string holes includes a predetermined number of insertion pins pre-arranged in the molding cavity. The inner wall surface of the molding cavity adjacent to each...
5232220 Ball game racket, especially for tennis or squash racket  
Ball game racket, especially tennis racket or squash racket has a frame made of plastics, which in the plane of stringing provided on the head is designed in two parts and whose halves exhibit a...
5217223 Tennis racket with metal/composite frame  
A racket frame comprising a tube shaped into a handle, a head and intermediate beams therebetween; a yoke coupled to the portion of the head adjacent to the beams to thereby form a string-receiving...
5211398 Hollow tennis racket frame with matched frequency of vibration  
A tennis racket frame having the head and shaft, preferably made of a hollow FRP material, have uniform thickness along the longitudinal direction of the racket frame in a range from 23 to 28 mm...
5175919 Method for manufacturing a racket frame  
A method for manufacturing a racket frame includes the steps of making a metal part having at least one joint end formed with a groove; covering the joint end of the metal part with a layer...
5163679 Hollow filled composite racket shaft with restricted intermediate portion  
A composite racket frame includes a shaft constituted by a shell and a foamed core and having a portion of smallest cross-section substantially at an intermediate portion thereof relative to any...
5155896 Method of manufacturing the throat portion of an aluminum racket  
A method of making a metal racket including wrapping around a foamable material a shell of composite material, splitting each end of the shell so that two pieces are formed on each end of the...
5143669 Fiber-reinforced molded racquet frame  
A method of making a fiber-reinforced molded racquet frame includes placing at least one core having a tube with at least one layer of woven reinforcing fibers in a mold shaped to define the frame....
5110125 Sport racket  
A sport racket is provided wherein the thickness (e) of the cross section of the racket frame at the head and shafts is smaller than the thickness of the frame at the handle. This cross section has...
5075056 Process for the production of a ball game racket frame  
A process for the production of a ball game racket frame, in particular a tennis racket, squash racket or badminton racket frame, with a head and a shaft, in which at least the head and/or the...
5062634 Squash racket  
A squash racket has a frame with a head portion, a throat portion, and a shaft portion which terminates in a handle portion. The racket is lighter than prior squash rackets, and the balance point...
5029858 Structure of a composite fiber racket  
Disclosed is an improved structure of a composite fiber racket, which includes a frame comprising a head portion and a handle, wherein a catgut string is laterally and longitudinally inserted...
Matches 1 - 50 out of 107 1 2 3 >