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| Number | Title | Issue Date |
| 6402646 | Sports and game racket utilizing a preassembled woven stringing surface The present invention relates to the design and manufacture of sport rackets, and in particular to those of tennis rackets. The improvements herein also apply to rackets used as toys and for games. Particular focus is on the design of the string surface o... | 06/11/2002 |
| 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 |
| 5413335 | Interchangeable racquet component system A racquet system having a frame, an interchangeable string head, and optionally, a damper membrane to reduce vibration. The hoop-shaped frame head inner surface contains a channel, contoured to accept the outside surface of the damper membrane. The damper... | 05/09/1995 |
| 4804183 | Double faced sports racquet A sports racquet having two string faces each with a different tension to provide variable playing characteristics. The racquet is further equipped with two different grip surfaces to assist the player in detecting which racquet face is in use and with a ... | 02/14/1989 |
| 4357012 | Game racket having removable stringed insert A sports racket such as a tennis racket has a head comprising a pair of concentric frames wherein an inner frame equipped with tensioned strings is supported resiliently within an outer frame by an inflated tube lying within opposing parallel channels ext... | 11/02/1982 |
| 4274634 | Tennis rackets A tennis racket comprising a base frame consisting of a handgrip and annular support, a counter-frame having a similar shape, an active element carrying crossed strings and adapted to be interchangeably mounted between said base frame and counter-frame an... | 06/23/1981 |
| 4149722 | Pre-formed racket string with inter-locked webbing A loosely woven network of racket string cordage, preferably employing a single continuous member and woven to form a substantially horizontal and vertical pattern with inter-locking at each intersection of the horizontal and vertical lines and with a mas... | 04/17/1979 |
| 4139194 | Racket for striking a ball A closed hoop carries striking means and is connected to a bifurcated extension of a shaft and handle member by a plurality of vibration-absorbing elastic elements.... | 02/13/1979 |
| 4135717 | Tennis racquet with insert A racquet having a replaceable playing surface. The racquet includes a one-piece solid frame having a handle and a head. The head is provided with an arcuate opening with a groove for receiving an insert. The insert has a rim with a playing surface secure... | 01/23/1979 |
| 4124209 | Tennis racquet with insert A racquet comprising a frame, an insert which is received in a groove in the head portion of the frame and a locking device in the head or frame portion holding the insert securely to the frame.... | 11/07/1978 |
| 4095790 | Tennis racket with tensioned one-piece ball-striking friction imparting grid A one-piece, integral, molded, plastic, diaphragm-like grid designed for installation and tensioning bodily within the confines of the usual generally oval or elliptical frame of a tennis racket to supplant the conventional arrangement of interlaced racke... | 06/20/1978 |
