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EP0176021A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Tennis racket

Assignee: Individual
•
Filing: 1985-09-17
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Granted: —
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Expires: 2005-09-17
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Abstract

Abstract A racket for playing a game using a ball of limited resiliency such as a tennis racket comprises a racket head frame portion provided with stringing, a handle, and a shaft arrangement connecting the racket head frame portion and the handle. The resonance frequency of the racket head frame portion at least approximately corresponds to the period of time for which a ball is in contact with the strings of the racket when struck thereby, and the natural frequency of the racket substantially corresponds to the excitation frequency of the ball. The thickness of the racket frame as measured in a direction normal to the plane of the stringing is greater than the thickness of the handle as measured in a corresponding direction.

Inventors

  • 👤 Siegfried Kuebler

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-01 22:53
CPC Classifications
A; A63; A63B; A63B49/00; A63B49/02; A63B49/03; A63B2049/0211; A63B60/00; A63B60/002

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1539019A Cited
DE3018354A1 Cited

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