Plastic and nonmetallic article shaping or treating: processes – With printing or coating of workpiece – Coating or impregnating workpiece before molding or shaping...
Patent
1976-05-10
1977-06-21
Kucia, Richard R.
Plastic and nonmetallic article shaping or treating: processes
With printing or coating of workpiece
Coating or impregnating workpiece before molding or shaping...
264136, 264137, 264258, B29D 302
Patent
active
040311813
ABSTRACT:
A composite game racket having improved stiffness and uniformity and method of making same. Rackets are light bats consisting of a netting stretched in an open frame attached to a handle and which are used for striking the ball in tennis and similar games. The racket comprises a shell with a high strength fiber reinforced plastic facing laminated to each face of the shell. A preferred fiber orientation in the novel facing is disclosed. The facing is made by a method including steps of arranging a resin impregnated fiber tow in a mold, placing resin impregnated fiber cloth sheets over the tow in a specific selected arrangement and curing the resin under pressure in the mold. The shell may be internally recessed in a truss-like pattern to provide lightness with strength. The handle of the racket includes a pair of plastic pallets secured to the handle portion of the shell and covered with a covering material, such as a thin leather strip winding. The finished racket is finally strung in a conventional manner and is then ready for use.
REFERENCES:
patent: 2749266 (1956-06-01), Eldred
patent: 3349157 (1967-10-01), Parsons
patent: 3483055 (1969-12-01), Eshbaugh
patent: 3493240 (1970-02-01), Jenks
patent: 3619448 (1971-11-01), Palfreyman
patent: 3657040 (1972-04-01), Shobert
patent: 3755037 (1973-08-01), Erwin
patent: 3993308 (1976-11-01), Jenks
Bender Richard E.
Schaefer William H.
Duncan John R.
General Dynamics Corporation
Kucia Richard R.
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