US4489942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tennis racket and string aligner therefor
Assignee: Individual
•
Filing: 1982-09-29
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Granted: 1984-12-25
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Expires: 2002-09-29
Abstract
Abstract A device for aligning strings in a grid of tennis racket comprised of a base having a peripheral groove for receiving the frame of the racket. The base has a plurality of posts arranged and shaped to intersect the spaces between strings. A cover is hinged to the base and acts as a press to force the tennis racket down on the posts, causing strings to become aligned.
Inventors
- 👤 Willie D. Kent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:44
CPC Classifications
A; A63; A63B; A63B51/00; A63B51/015
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
137 words
In combination: a racquet for playing a racquet game, which racquet includes a frame that supports strings as a grid with apertures formed between intersecting strings so as to form an array; and a device for aligning said strings in said frame, said device comprising a base, a plurality of posts rising from said base, and arranged in a pattern to conform to at least a part of said array, each said post being so shaped and so disposed and arranged as to contact at least two strings which bound the aperture into which it enters, and a cover adapted to fit against said base and sandwich said frame between them, said posts thereby aligning the strings contacted by them, and said base and cover enclosing said frame, but enabling removal of the frame from between them.
Claim 2
Dependent Claim
137 words
In combination: a racquet for playing a racquet game, which racquet includes a frame that supports strings as a grid with apertures formed between intersecting strings so as to form an array; and a device for aligning said strings in said frame, said device comprising a base, a plurality of posts rising from said base, and arranged in a pattern to conform to at least a part of said array, each said post being so shaped and so disposed and arranged as to contact at least two strings which bound the aperture into which it enters, and a cover adapted to fit against said base and sandwich said frame between them, said posts thereby aligning the strings contacted by them, and said base and cover enclosing said frame, but enabling removal of the frame from between them.
Claim 3
Dependent Claim
16 words
A device according to claim 1 in which said cover is hingedly mounted to said base.
Claim 4
Dependent Claim
27 words
A device according to claim 2 in which said posts are circularly sectioned, whereby to align the strings they abut without contacting the strings at their intersections.
Claim 5
Dependent Claim
23 words
A device according to claim 3 in which said posts are conically tapered, reducing in cross-section as they extend away from said base.
Claim 6
Dependent Claim
28 words
A device according to claim 1 in which said base and said cover form a carrying case for a stringed racket that includes said frame and said strings.
Claim 7
Dependent Claim
22 words
A device according to claim 1 in which said posts are tapered, reducing in cross-section as they extend away from said base.
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) | 1987-12-25 | 1988-06-25 | 1988-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-25 | 1992-06-25 | 1992-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-25 | 1996-06-25 | 1996-12-25 | $7700.00 | Window Closed / Lapsed |