Method of manufacturing the throat portion of an aluminum racket

Details Method of manufacturing the throat portion of an aluminum racket Method of manufacturing the throat portion of an aluminum racket

1991-08-20

1992-10-20

Gorski, Joseph M.

Metal working

Method of mechanical manufacture

Assembling or joining

29446, 29458, 273 73G, B21D 3500, A63B 4910

Patent

active

051558963

ABSTRACT:
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 shell, attaching the pieces of the shell to the throat portion of the racket, wrapping around the pieces of the shell and the throat portion with an outer layer which is made of composite material, hot-pressing the racket and the shell in order to foam the foamable material and in order to cure the shell so that the shell can be formed integral with the racket as a yoke of the racket.

REFERENCES:
patent: 2178588 (1939-11-01), Kleinman
patent: 3612526 (1971-10-01), Brull
patent: 3993308 (1976-11-01), Jenks
patent: 4177990 (1979-12-01), Kajiwara
patent: 4506887 (1985-03-01), Trysinsky
patent: 4684131 (1987-08-01), Mortvedt
patent: 4725059 (1988-02-01), Gardin et al.

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