Glass-carbon reinforced foamed resin tennis racket frame

Details Glass-carbon reinforced foamed resin tennis racket frame Glass-carbon reinforced foamed resin tennis racket frame

1974-11-25

1976-09-21

Apley, Richard J.

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

273DIG1, 273DIG2, 273DIG6, 273DIG7, 273DIG23, A63B 4910

Patent

active

039815048

ABSTRACT:
A molded, plastic tennis racket frame is described which is constructed of a combination of glass fiber reinforcement and carbon fiber reinforcement to provide a low specific gravity composite when incorporated in resins which are reinforced by these materials and to permit construction of a tennis racket having a general shape of conventional wooden rackets. The tennis racket is constructed as a unitary piece utilizing foamed resins reinforced with the glass fibers and carbon fibers. Specific weight percentages of glass fibers and carbon fibers are designated for maximum strength, flexibility and good playing characteristics.

REFERENCES:
patent: 3306960 (1967-02-01), Weissman et al.
patent: 3478134 (1969-11-01), Gruss et al.
patent: 3491055 (1970-01-01), Talley
patent: 3598693 (1971-08-01), Andersen et al.
patent: 3644168 (1972-02-01), Bonk et al.
patent: 3647211 (1972-03-01), Doessel et al.
patent: 3690658 (1972-09-01), Howe
patent: 3691000 (1972-09-01), Kalnin
patent: 3770033 (1973-11-01), Gavillet et al.
patent: 3787051 (1974-01-01), Johns

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