Method of producing a racket frame

Details Method of producing a racket frame Method of producing a racket frame

1981-12-18

1983-07-12

Hoag, Willard E.

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

Surface finishing

264213, 264219, 264221, 264257, 264313, 264317, 264334, 264339, 273 73F, B29C 1708, B29D 302

Patent

active

043930247

ABSTRACT:
A racket frame is made by molding a thermosetting resin composition together with reinforcing fibers. Molds are made of flexible strip members, such as plastics, wood pulp, paper pulp, wood, bamboo, etc., which are bent to form a racket frame in a fitting, thereby reducing the production cost incurred in fabrication of expensive molds. The formed racket frame has no shell and core structure.

REFERENCES:
patent: 2668987 (1954-02-01), Harris et al.
patent: 3641230 (1972-02-01), Jenks
patent: 3825646 (1974-07-01), Delmotte
patent: 3993308 (1976-11-01), Jenks
patent: 4031181 (1977-06-01), Schaefer et al.
patent: 4183776 (1980-01-01), Staubet et al.

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