Having Laminated Frame Patents (Class 473/547)
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Patent number: 11090538Abstract: Lacrosse heads are provided that include a polymer and graphene. The graphene increases the durability of the lacrosse heads, while having limited impact on the stiffness and flexibility of the lacrosse heads. Also provided is equipment for other contact sports that include graphene to increase durability.Type: GrantFiled: December 3, 2019Date of Patent: August 17, 2021Assignee: EAST COAST DYES, INC.Inventors: Hamilton Sean Michael Whitney, Gregory Lee Kenneally, Chia-Jen Hsu, Bor Z. Jang, Aruna Zhamu
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Patent number: 10974100Abstract: A racket includes: a grip; an annular frame; and a shaft coupling the grip and the frame together; wherein a projection is provided to an outer peripheral face on a leading end half of the frame in a predetermined range including a location of maximum curvature in a peripheral direction.Type: GrantFiled: April 27, 2017Date of Patent: April 13, 2021Assignee: YONEX KABUSHIKI KAISHAInventors: Naoto Ogawa, Masato Kawabata, Hitoshi Kato, Tsutomu Takahashi
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Patent number: 9119993Abstract: A tennis racket having an optimized striking area and a ball collection portion. The tennis racket includes a handle, an oval frame attached to the handle, the oval frame including a U-shaped indentation, a plurality of vertical and horizontal strings attached to the oval frame, and a replaceable clip, wherein the plurality of vertical and horizontal strings form a sweet spot area, the sweet spot area having a size, and wherein a depth of the U-shaped indentation affects the size of the sweet spot area. The tennis racket may include one or more bars attached to the oval frame to further manage the sweet spot area.Type: GrantFiled: August 23, 2012Date of Patent: September 1, 2015Assignee: OJOEE Industries, Inc.Inventors: Scott R. Fellini, Anthony Rosso, Marisa Hodges
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Publication number: 20110312451Abstract: The present invention relates to a racket for ball games having a frame comprising a head portion for receiving a stringing and a handle portion for gripping the racket, wherein the frame comprises at least one transparent or translucent portion formed from a transparent or translucent material, said transparent or translucent portion being integrally bonded to the remaining frame. Furthermore, a method for manufacturing such a racket is described.Type: ApplicationFiled: December 21, 2009Publication date: December 22, 2011Applicant: HEAD TECHNOLOGY GMBHInventor: Ralf Schwenger
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Publication number: 20100125013Abstract: A racket may include a frame including at least one prepreg layer. The at least one prepreg layer may include reinforcing fibers. The at least one prepreg layer may also include a matrix at least partially surrounding the reinforcing fibers. The at least one prepreg layer may also include graphene material.Type: ApplicationFiled: November 13, 2009Publication date: May 20, 2010Inventor: Herfried Lammer
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Publication number: 20040138015Abstract: A racket frame is constructed to include a body, the body having an endless head and a shaft extended from the endless head for the mounting of a grip, and two wooden strips fastened to the endless head of the body at two sides, the wooden strips taking about 5%˜70% of the volume of the racket frame.Type: ApplicationFiled: March 12, 2003Publication date: July 15, 2004Inventor: Kuo-Pin Yu
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Publication number: 20030224865Abstract: A tubular sport item includes a tubular reinforcement layer which includes fiber strips and a veneer lamination is wrapped around the reinforcement layer so that the billiard cue has the same feeling as the billiard cue made of wood.Type: ApplicationFiled: May 29, 2002Publication date: December 4, 2003Inventor: Chien Hao Lai
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Publication number: 20030162613Abstract: A composite sports racquet frame is made by placing a first prepreg tube into a first mold plate and a second prepreg tube into a second mold plate. A plurality of pin plates, each having a plurality of pins which are at least substantially parallel to one another, are secured to the mold plate so that, when the mold is closed, the pins extend between the two tubes. The tubes are pressurized to assume the shape of the mold and contact one another, and the mold is heated to allow resin to flow between the tubes as they cure, the pins forming pin holes in the frame. Once cured, the frame is removed from the mold, and the pins are withdrawn. If desired, the ends of the tubes forming the handle section can be kept separate from one another during the molding process, by using a removable mold plate. In this manner, not only do the two tubes become integral with one another, at least in the head portion, but string holes do not need to be drilled after the racquet is molded.Type: ApplicationFiled: February 26, 2002Publication date: August 28, 2003Inventor: Stephen J. Davis
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Patent number: 6012996Abstract: 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 arranged side by side in the direction toward the head face of the game racket such that the adjoining walls of the inner tubes are attached for forming cross ribs in the main body, and that the outer walls of the inner tubes are intimately attached to the inner wall of the outer tube. The interior of the main body is provided with the cavities of the inner tubes. The main body is further provided with a plurality of string holes extending through the main body in the direction toward the head face of the game racket. The sideway structural strength of the main body is thus reinforced by the cross ribs formed at the junctions of the laminated inner tubes.Type: GrantFiled: March 5, 1998Date of Patent: January 11, 2000Assignee: Shenly Won Sport Co., Ltd.Inventor: Kun-Nan Lo
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Patent number: 5935028Abstract: A badminton racket is composed of an oval frame, a grip, and a shaft fastened between the oval frame and the grip. The shaft has a shell which is formed of a plurality of fiber-reinforced plastic layers and at least one metal gauze layer. The metal gauze layer is formed of a first metal filament and a second metal filament such that the first metal filament is extended in a direction forming an angle with the longitudinal axis of the shaft, and that the second metal filament is extended in a direction forming an angle with the longitudinal axis of the shaft. The angles so formed are preferably 60 degrees each.Type: GrantFiled: August 4, 1998Date of Patent: August 10, 1999Assignee: Shenly Won Sport Co., Ltd.Inventor: Kun-Nan Lo