Amusement devices: games – Aerial projectile game; game element or accessory therefor... – Target
Patent
1994-08-29
1995-08-01
Passaniti, Sebastiano
Amusement devices: games
Aerial projectile game; game element or accessory therefor...
Target
273DIG23, 428 363, 428 369, A63B 5310
Patent
active
054374502
ABSTRACT:
A light weight golf club shaft is disclosed which has an average weight of not greater than 1.4 g per inch and which is composed of an inner tubular layer of a carbon fiber reinforced plastic having a fiber orientation angle of 40 to 50 degrees with respect to the longitudinal axis of the shaft and an outer tubular layer of a carbon fiber reinforced plastic provided around the inner layer and having a fiber orientation angle of 5 to 30 degrees. The inner layer is obtained from a prepreg sheet by a sheet winding method, while the outer layer is obtained from a roving carbon fibers by a filament winding method. The inner layer has been hardened before the winding of the roving. A reinforcing layer obtained from a prepreg and having a fiber orientation angle of 0 to 5 degrees is provided inside of the inner layer at the tip portion of the shaft.
REFERENCES:
patent: 3313541 (1967-04-01), Benkoczy
patent: 3998458 (1976-12-01), Inoue
patent: 4023801 (1977-05-01), Van Auken
patent: 4135035 (1979-01-01), Branen
patent: 4757997 (1988-07-01), Roy
patent: 5088735 (1992-02-01), Shigetoh
patent: 5143374 (1992-09-01), Shibasaki
patent: 5156396 (1992-10-01), Akatsuka
Akatsuka Tsuneo
Harada Takashi
Motoki Yoshihiro
Suzawa Akira
Passaniti Sebastiano
Somar Corporation
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