Patent US3874667A successfully refreshed from Google Patents.
US3874667A
Expired / Lapsed
US
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Die-cast light-metal racket and stringing means therefor
Assignee: Farley Inc
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Filing: 1973-12-26
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Granted: 1975-04-01
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Expires: 1993-12-26
Abstract
Abstract A metal tennis racquet is die cast so as to incorporate independent stringing means within the frame head. The stringing means may comprise a multiplicity of spaced eyelets partially cast into the frame head, or a sinuous wire annulus of spaced and alternating crests and troughs, the troughs being cast into the frame head and the crests receiving the racquet string. Either form of stringing means may be connected to a metal band of the same general size and shape as the frame head, which band is cast into the frame.
Inventors
- 👤 Peter Christopher Jo Gallagher
- 👤 Gerald R Kotler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:32
CPC Classifications
A; A63; A63B; A63B49/00; A63B49/02; A63B49/12; A63B49/022; A63B60/00; B; B22; B22D; B22D19/00; A63B49/028; A63B60/54
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
119 words
A die-cast, light-metal playing racquet comprising: a curvalinear head portion having a solid metal cross section and constructed and arranged to enclose a stringing area; a handle integral with said head portion; and stringing means comprising a separate implant encapsulated by said solid metal head portion, said implant consisting of a metal band conforming substantially to said curvalinear head portion and arranged with the plane of its major axis substantially perpendicular to the plane of said stringing area, and a plurality of individual string receiving members fastened to said metal band in spaced relationship therearound, said string receiving members comprising wire loops arranged to protrude from said head portion inwardly into said stringing area and in the plane thereof.
Claim 2
Dependent Claim
119 words
A die-cast, light-metal playing racquet comprising: a curvalinear head portion having a solid metal cross section and constructed and arranged to enclose a stringing area; a handle integral with said head portion; and stringing means comprising a separate implant encapsulated by said solid metal head portion, said implant consisting of a metal band conforming substantially to said curvalinear head portion and arranged with the plane of its major axis substantially perpendicular to the plane of said stringing area, and a plurality of individual string receiving members fastened to said metal band in spaced relationship therearound, said string receiving members comprising wire loops arranged to protrude from said head portion inwardly into said stringing area and in the plane thereof.
Claim 3
Dependent Claim
30 words
A die-cast, light-metal playing racquet according to claim 1 wherein said wire loops comprise the crests of a sinuous wire the troughs of which are fastened to said metal band.
Claim 4
Dependent Claim
22 words
A die-cast, light-metal playing racquet according to claim 1 wherein said wire loops comprise eyelets having stems fastened to said metal band.
References Cited (Backward Citations)
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US1954327A
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US2610056A
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US3582073A
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US3664669A
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US3642283A
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US3801099A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |