US4220335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Games rackets
Assignee: Nippon Gakki Co Ltd
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Filing: 1978-12-26
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Granted: 1980-09-02
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Expires: 1998-12-26
Abstract
Abstract A games racket comprising a shaft and a head formed by a continuous frame section having a plurality of apertures adapted to receive the strings of the racket and a protective bumper strip attached to the outer face of the frame section, the bumper strip comprising an inner face which conforms generally to the shape of at least a substantial part of the width of the outer face of the frame section and being formed with a plurality of apertures aligned with the apertures in the frame section to receive the strings of the racket therethrough.
Inventors
- 👤 John W. Nobbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:37
CPC Classifications
A; A63; A63B; A63B49/00; A63B49/02; A63B49/14; A63B49/022; A63B60/00; A63B60/54
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
133 words
A games racket comprising a shaft and a head formed by a frame section, said frame section having a plurality of distinct, separate, generally radially extending aperture means for receiving strings of the racket therein; and said frame section having an outer face; and protective bumper strip means for providing surface to surface contact with said frame section over a portion thereof so that said means acts as a protective bumper for said frame section, said bumper strip means comprising an inner face which conforms generally to the shape of at least a substantial part of the width of the outer face of said frame section, and including a plurality of generally radially extending, distinct, separate apertures therein aligned with said aperture means in said frame section for receipt of racket strings therein.
Claim 2
Dependent Claim
133 words
A games racket comprising a shaft and a head formed by a frame section, said frame section having a plurality of distinct, separate, generally radially extending aperture means for receiving strings of the racket therein; and said frame section having an outer face; and protective bumper strip means for providing surface to surface contact with said frame section over a portion thereof so that said means acts as a protective bumper for said frame section, said bumper strip means comprising an inner face which conforms generally to the shape of at least a substantial part of the width of the outer face of said frame section, and including a plurality of generally radially extending, distinct, separate apertures therein aligned with said aperture means in said frame section for receipt of racket strings therein.
Claim 3
Dependent Claim
45 words
A games racket as claimed in claim 1 in which the bumper strip means is formed with a plurality of integral hollow grommets each of which extends into an aperture means of the frame section to act as a protective sleeve for a racket string.
Claim 4
Dependent Claim
48 words
A games racket as claimed in claim 1 in which a plurality of hollow grommets are provided each of which extends through an aperture in the bumper strip means and an aligned aperture means in the frame section to act as a protective sleeve for a racket string.
Claim 5
Dependent Claim
24 words
A games racket as claimed in claim 3 in which the grommets are formed from a substantially harder material than the protective bumper strip.
Claim 6
Dependent Claim
27 words
A games racket as claimed in claim 4 in which the grommets are formed from nylon and the bumper strip is formed from a thermoplastics synthetic rubber.
Claim 7
Dependent Claim
22 words
A games racket as claimed in claim 3 in which the hollow grommets are formed integrally as part of a grommet strip.
Claim 8
Dependent Claim
69 words
A games racket as claimed in claim 1 in which the outer face of the frame section is formed with a continuous channel bounded by two side walls and the bumper strip means is formed with a web adapted to seat in and complement the channel and two side flanges adapted to overlie and protect a substantial part of the width of the outer surfaces of the side walls.
Claim 9
Dependent Claim
24 words
A games racket as claimed in claim 7 in which the outer face of the bumper strip means is formed with a continuous recess.
Claim 10
Dependent Claim
45 words
A games racket as claimed in claim 8 in which the bumper strip means is formed with a plurality of integral hollow grommets each of which extends into an aperture means of the frame section to act as a protective sleeve for a racket string.
Claim 11
Dependent Claim
48 words
A games racket as claimed in claim 8 in which a plurality of hollow grommets are provided each of which extends through an aperture in the bumper strip means and an aligned aperture means in the frame section to act as a protective sleeve for a racket string.
Claim 12
Dependent Claim
24 words
A games racket as claimed in claim 10 in which the grommets are formed from a substantially harder material than the protective bumper strip.
Claim 13
Dependent Claim
27 words
A games racket as claimed in claim 11 in which the grommets are formed from nylon and the bumper strip is formed from a thermoplastics synthetic rubber.
Claim 14
Dependent Claim
22 words
A games racket as claimed in claim 10 in which the hollow grommets are formed integrally as part of a grommet strip.
Claim 15
Dependent Claim
25 words
A games racket as claimed in claim 11 in which the grommets are made from a substantially harder synthetic plastics material than the bumper strip.
Claim 16
Dependent Claim
40 words
A games racket as claimed in claim 14 in which the bumper strip means is formed with an outer surface having a continuous recess and the grommets are formed with heads located in the recess in the bumper strip means.
Claim 17
Dependent Claim
32 words
A games racket as claimed in claim 12 in which each grommet has a portion which extends through the frame section and which is deformed to resist withdrawal from the frame section.
Claim 18
Dependent Claim
144 words
A games racket comprising a shaft and a head formed by a frame section, said frame section having a plurality of distinct, separate, generally radially extending aperture means for receiving strings of the racket therein; and said frame section having an outer face; protective bumper strip means for providing surface to surface contact with said frame section and for the protection thereof, and comprising an inner face which conforms generally to the shape of at least a substantial part of the width of the outer face of the frame section, and including a plurality of generally radially extending, distinct, separate apertures therein aligned with said aperture means in said frame section; a plurality of grommets each of which extends through a said aperture means in said frame section; and racket strings extending through said grommets for securing said bumper strip to said frame section.
Claim 19
Dependent Claim
144 words
A games racket comprising a shaft and a head formed by a frame section, said frame section having a plurality of distinct, separate, generally radially extending aperture means for receiving strings of the racket therein; and said frame section having an outer face; protective bumper strip means for providing surface to surface contact with said frame section and for the protection thereof, and comprising an inner face which conforms generally to the shape of at least a substantial part of the width of the outer face of the frame section, and including a plurality of generally radially extending, distinct, separate apertures therein aligned with said aperture means in said frame section; a plurality of grommets each of which extends through a said aperture means in said frame section; and racket strings extending through said grommets for securing said bumper strip to said frame section.
Claim 20
Dependent Claim
26 words
A games racket as claimed in claim 17 in which the bumper strip means extends over a substantial part of the circumference of the frame section.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-02 | 1984-03-03 | 1984-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-02 | 1988-03-03 | 1988-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-02 | 1992-03-03 | 1992-09-02 | $7700.00 | Window Closed / Lapsed |