Amusement devices: games – Aerial projectile game; game element or accessory therefor... – Target
Patent
1993-12-28
1994-08-16
Stoll, William E.
Amusement devices: games
Aerial projectile game; game element or accessory therefor...
Target
A63B 5114
Patent
active
053380282
ABSTRACT:
A racket stringing apparatus includes a frame unit, a racket retaining device and a string tautening device. The string tautening device includes a string clamping unit, a swing lever and a counterweight mounted movably on the swing lever. A stringing receiving groove unit is formed in the top surface of the string clamping unit and has a non-clamping section and a clamping section. The non-clamping section has a fixed width, while the clamping section has a width which can be adjusted to clamp tightly a string therein. The string tautening device includes a limit member which has a first limit peripheral surface and a second limit peripheral surface. The swing lever has a lower end which normally abuts against the first limit peripheral surface so as to prevent the actuator end portion of the swing lever from turning toward the racket retaining device and to permit the actuator end portion to turn away from the racket retaining device until the swing lever contacts the second limit peripheral surface. When the swing lever contacts the second limit peripheral surface, the actuator end portion of the swing lever is located at a level above the bottom surface of the frame unit.
REFERENCES:
patent: 3302950 (1967-02-01), Hartman
patent: 4373721 (1983-02-01), Ray
patent: 4706955 (1987-11-01), Ngadi et al.
patent: 4949968 (1990-08-01), Korte-Jungermann
patent: 5090697 (1992-02-01), Lee
patent: 5269515 (1993-12-01), Chu
Right Way Co.
Stoll William E.
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