Tennis racket strings having orthogonally directed protrusions f

Details Tennis racket strings having orthogonally directed protrusions f Tennis racket strings having orthogonally directed protrusions f

1988-01-20

1990-04-03

Coven, Edward M.

Amusement devices: games

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

Target

A63B 5110

Patent

active

049134302

ABSTRACT:
A racket having intersecting strings is disclosed in conjunction with a plurality of orthogonal protrusions made from metallic wires extending through and fixedly positioned at the intersections of the strings for the purpose of enhancing the frictional grip between the racket and the ball during impact. This construction makes it easier to execute "drop shots", "slicing strokes", "top spin" and "under spin" shots. The protrusions allow greater ball control as well as prolonging the life of the strings. The wire protrusions produce a gripping action having better frictional contact between the strings of the racket, such as a tennis racket, and the ball when it is hit. The protrusions can be provided on one as well as both sides of the intersections along the same axial line, such as, by twisting the wires and forming protrusion end surfaces that are substantially parallel to the surface of the plane of the strings with a tooth-like gripping action and improved ball control.

REFERENCES:
patent: 763059 (1904-06-01), Hyde
patent: 1364331 (1921-01-01), Vaile
patent: 1422993 (1922-07-01), Larned
patent: 3630523 (1971-12-01), Lacoste
patent: 3921979 (1975-11-01), Dischinger
patent: 4368886 (1983-01-01), Graf

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