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US4131278A Expired / Lapsed US ⏱️ 0.0 years remaining

Game racket with semi-resilient impact surfaces and an offset handle

Assignee: PAP ET Inc
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Filing: 1977-06-07
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Granted: 1978-12-26
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Expires: 1997-06-07
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Abstract

Abstract A game racket for a game generally similar to tennis but not employing a net, the racket consisting of a main body formed by a rigid ring with thin plate-like but resilient panels peripherally sealingly secured on opposite sides of the ring, defining a sealed air chamber therebetween. The ring has a handle which is offset from the center line of the racket by a distance sufficient to enable the user's index finger to supportingly engage the back of the main body substantially along the center line when the racket is gripped, so as to provide improved control of the racket when striking a ball and to relieve wrist tension. The sealed air chamber contributes to the bounce characteristics of the racket by acting as a resiliently compressible gas cell wherein the impacted panel distorts to a greater degree than the opposite panel, causing compression of the contained air which then immediately expands and reacts drivingly on the ball.

Inventors

  • 👤 Joseph Goldenberg

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 19:35
CPC Classifications
A; A63; A63B; A63B59/00; A63B59/80; A63B59/40; A63B60/00; A63B60/06; A63B60/22; A63B60/34; A63B2102/00; A63B2102/16; A63B49/00; A63B49/02; A63B49/08

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 234 words
A game racket comprising a main body including means defining a flat sealed air chamber having resiliently yieldable plate-like striking surfaces, and a handle connected to said main body on an axis parallel to but offset from a center line of said main body by a distance sufficient to enable a user's index finger to supportingly engage behind said main body substantially at said center line, whereby to provide guiding support of the racket when striking a ball, wherein said main body comprises a rigid ring member with relatively thin plate-like front and rear panels peripherally sealingly secured on opposite sides of said ring member, wherein said ring member is substantially oval in shape and is continuously outwardly convex at its opposite lateral sides, the major axis of the ring member extending substantially parallel to said handle, wherein the radius of curvature of the ring member at the minor axis of the ring member is substantially greater at the lateral side thereof near the handle axis than at the lateral side thereof remote from the handle axis, and wherein the corner between said handle and the smaller-radius lateral side of the ring member is arcuately curved with a relatively short radius of curvature and the corner between said handle and the larger-radius lateral side of the ring member is arcuately curved with a relatively long radius of curvature, to facilitate gripping of the handle.
Claim 2
Dependent Claim 234 words
A game racket comprising a main body including means defining a flat sealed air chamber having resiliently yieldable plate-like striking surfaces, and a handle connected to said main body on an axis parallel to but offset from a center line of said main body by a distance sufficient to enable a user's index finger to supportingly engage behind said main body substantially at said center line, whereby to provide guiding support of the racket when striking a ball, wherein said main body comprises a rigid ring member with relatively thin plate-like front and rear panels peripherally sealingly secured on opposite sides of said ring member, wherein said ring member is substantially oval in shape and is continuously outwardly convex at its opposite lateral sides, the major axis of the ring member extending substantially parallel to said handle, wherein the radius of curvature of the ring member at the minor axis of the ring member is substantially greater at the lateral side thereof near the handle axis than at the lateral side thereof remote from the handle axis, and wherein the corner between said handle and the smaller-radius lateral side of the ring member is arcuately curved with a relatively short radius of curvature and the corner between said handle and the larger-radius lateral side of the ring member is arcuately curved with a relatively long radius of curvature, to facilitate gripping of the handle.
Claim 3
Dependent Claim 20 words
The game racket of claim 1, and wherein said front and rear panels comprise plates approximately 1/16 inch in thickness.
Claim 4
Dependent Claim 12 words
The game racket of claim 1, and wherein the handle is hollow.

References Cited (Backward Citations)

US1700251A Cited
GB834280A Cited
DE2407213A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-12-25 1982-06-26 1982-12-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-12-25 1986-06-26 1986-12-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-12-25 1990-06-26 1990-12-26 $7700.00 Window Closed / Lapsed

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