Method of producing reinforced composite racket frame

Details Method of producing reinforced composite racket frame Method of producing reinforced composite racket frame

1980-05-05

1981-10-13

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264573, 264257, 273 73F, 273 73J, B29D 2700, A63B 4910

Patent

active

042947871

ABSTRACT:
This invention discloses an improved method of producing fiber glass or fiber graphite reinforced racket frames in which a shell made of a plurality of layers of resin-impregnated oriented graphite fibers is squeezed during the heating period to contact completely with the inner surface of a mold cavity by means of two interior pressure separately generated by compressed air and a foamable elastomer or rubber composition wrapped within the shell.

REFERENCES:
patent: 4070020 (1978-01-01), Dano
patent: 4070021 (1978-01-01), Cecka et al.
patent: 4124670 (1978-11-01), Cecka et al.
patent: 4128963 (1978-12-01), Dano
patent: 4129634 (1978-12-01), Cecka et al.

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