Tennis racquet with tapered profile frame

Details Tennis racquet with tapered profile frame Tennis racquet with tapered profile frame

1990-02-07

1991-08-06

Coven, Edward M.

Amusement devices: games

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

Target

A63B 4902

Patent

active

050370987

ABSTRACT:
A tennis racquet includes a hollow tubular frame defining a head portion, a throat, and a shaft portion supporting a handle. The frame has a height, in a direction perpendicular to the stringing plane, that increases uniformly from the bottomn of the throat to the tip of the head portion, so as to increase in stiffness further away from the handle. Such arrangement, in which the frame is most flexible at the top of the handle, reduces the angle of deflection of the stringing plane upon impact and absorbs shock.

REFERENCES:
patent: 243467 (1977-02-01), Kouvelas
patent: 1539019 (1924-02-01), Nikonow
patent: 2164631 (1937-01-01), Abell
patent: 2171223 (1939-08-01), Robinson
patent: 3647211 (1972-03-01), Doessel et al.
patent: 3755037 (1973-08-01), Erwin et al.
patent: 3809402 (1974-05-01), Haines et al.
patent: 3930920 (1976-01-01), Kicherer
patent: 4177990 (1979-12-01), Kajiwara
patent: 4280699 (1981-07-01), Drake
patent: 4291574 (1981-09-01), Frolow
patent: 4293129 (1981-10-01), Planakis
patent: 4294787 (1981-10-01), Lo
patent: 4561655 (1985-12-01), Mortvedt
patent: 4664380 (1987-05-01), Kuebler

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