Racket for ball games and string portion or string therefor

Details Racket for ball games and string portion or string therefor Racket for ball games and string portion or string therefor

1993-02-11

1994-09-13

Stoll, William E.

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

273 73R, A63B 5102

Patent

active

053462122

ABSTRACT:
In an racket for ball games, in particular a tennis racket, having a stringing surface which is provided in a stringing frame and comprising mutually crossing strings as sections of at least one longer string portion the strings in one direction have different cross-sections from the middle region of the stringing surface to the shortest string in that direction. The strings themselves have cross-sections which, from the corresponding central axis of the stringing surface, increase or decrease in a plurality of steps to the shortest string in this direction.

REFERENCES:
patent: 1132214 (1915-03-01), Ries et al.
patent: 3023483 (1962-03-01), Steiner
patent: 4033582 (1977-07-01), Linden
patent: 4330932 (1982-05-01), Ferrari
patent: 4339130 (1982-07-01), Husted
patent: 4408760 (1983-10-01), Ferrari
patent: 4462591 (1984-07-01), Kenworthy
patent: 4593905 (1986-06-01), Abel
patent: 4685676 (1987-08-01), Boden

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