Patent US4575083A successfully refreshed from Google Patents.
US4575083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Racket with elastic vibration damping strip
Assignee: Puma SE
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Filing: 1984-07-03
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Granted: 1986-03-11
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Expires: 2004-07-03
Abstract
Abstract A racket, especially a tennis racket having an elastic strip clamped in the edge area of the strung hitting surface through alternate crossing points of respective longitudinal and transverse strings and parallel to one of the strings or through diagonally adjacent crossing points of the strings. The strip is attached to the racket in a manner so that it can be detached at any time. The elastic strip serves the purpose of decreasing string vibrations during hitting of the ball.
Inventors
- 👤 Gunter Adam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:52
CPC Classifications
A; A63; A63B; A63B60/00; A63B60/54; A63B49/00; A63B49/02
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
130 words
A racket having a hitting area strung with longitudinal and transverse strings disposed so as to form crossing points therebetween and having at least one detachable damping means, comprising at least one elastic strip in an assembled condition on the racket, said elastic strip being of a width which is smaller than twice the distance between two transverse strings, for the damping of string vibrations, wherein the elastic strip is located solely in an edge area of the hitting area and is clamped in a sandwiched relationship such that said elastic strip extends between the longitudinal string and the transverse string of at least two crossing points and wherein the elastic strip, starting from one crossing point, is successively clamped between longitudinal and transverse strings only at alternate crossing points.
Claim 2
Dependent Claim
130 words
A racket having a hitting area strung with longitudinal and transverse strings disposed so as to form crossing points therebetween and having at least one detachable damping means, comprising at least one elastic strip in an assembled condition on the racket, said elastic strip being of a width which is smaller than twice the distance between two transverse strings, for the damping of string vibrations, wherein the elastic strip is located solely in an edge area of the hitting area and is clamped in a sandwiched relationship such that said elastic strip extends between the longitudinal string and the transverse string of at least two crossing points and wherein the elastic strip, starting from one crossing point, is successively clamped between longitudinal and transverse strings only at alternate crossing points.
Claim 3
Dependent Claim
20 words
A racket according to claim 1, wherein the strip has a hook-shaped extension on at least one of its ends.
Claim 4
Dependent Claim
58 words
A racket according to claim 2, wherein said damping means comprises at least a first and a second elastic strip said second elastic strip being located in overlying relationship with respect to said first elastic strip and being clamped in crossing points at which the first elastic strip does not pass between the respective longitudinal and transverse strings.
Claim 5
Dependent Claim
16 words
A racket according to claim 3, wherein the width of the strip measures 0.1 to 3mm.
Claim 6
Dependent Claim
25 words
A racket according to claim 2, wherein an inside radius of the hook-shaped extension is equal to or smaller than the thickness of the strings.
Claim 7
Dependent Claim
16 words
A racket according to claim 5, wherein the width of the strip measures 0.1 to 3mm.
Claim 8
Dependent Claim
59 words
A racket according to claim 5, wherein said damping means comprises at least a first and a second said elastic strip said second elastic strip being located in overlying relationship with respect to said first elastic strip and being clamped in crossing points at which the first elastic strip does not pass between the respective longitudinal and transverse strings.
Claim 9
Dependent Claim
35 words
A racket according to claim 7, wherein the elastic strips extend in parallel overlying relationship with respect to one of the strings without contacting parallelly extending, adjacent strings on either side of said one string.
Claim 10
Dependent Claim
27 words
A racket according to claim 8, wherein a strip, similar to said first elastic strip extends through diagonally adjacent crossing points of respective longitudinal and transverse strings.
Claim 11
Dependent Claim
37 words
A racket according to claim 1, wherein the elastic strip extends in parallel overlying relationship with respect to one of the strings without contacting parallelly extending, adjacent strings on either side of said one of the strings.
Claim 12
Dependent Claim
22 words
A racket according to claim 10, wherein another elastic strip extends through diagonally adjacent crossing points of respective longitudinal and transverse strings.
Claim 13
Dependent Claim
16 words
A racket according to claim 1, wherein the width of the strip measures 0.1 to 3mm.
Claim 14
Dependent Claim
59 words
A racket according to claim 11, wherein said damping means comprises at least a first and a second said elastic strip said second elastic strip being located in overlying relationship with respect to said first elastic strip and being clamped in crossing points at which the first elastic strip does not pass between the respective longitudinal and transverse strings.
Claim 15
Dependent Claim
124 words
A racket having a hitting area strung with longitudinal and transverse strings disposed so as to form crossing points therebetween and having at least one detachable damping means, comprising at least one elastic strip in an assembled condition on the racket, said elastic strip being of a width which is smaller than twice the distance between two transverse strings, for the damping of string vibrations, wherein the elastic strip is located solely in an edge area of the hitting area and is clamped in a sandwiched relationship such that said elastic strip extends between the longitudinal string and the transverse string of at least two crossing points and wherein said elastic strip, extends through diagonally adjacent crossing points of respective longitudinal and transverse strings.
Claim 16
Dependent Claim
124 words
A racket having a hitting area strung with longitudinal and transverse strings disposed so as to form crossing points therebetween and having at least one detachable damping means, comprising at least one elastic strip in an assembled condition on the racket, said elastic strip being of a width which is smaller than twice the distance between two transverse strings, for the damping of string vibrations, wherein the elastic strip is located solely in an edge area of the hitting area and is clamped in a sandwiched relationship such that said elastic strip extends between the longitudinal string and the transverse string of at least two crossing points and wherein said elastic strip, extends through diagonally adjacent crossing points of respective longitudinal and transverse strings.
Claim 17
Dependent Claim
21 words
A racket according to claim 14, wherein the elastic strip has a hook-shaped extension on at least one of its ends.
Claim 18
Dependent Claim
25 words
A racket according to claim 15, wherein an inside radius of the hook-shaped extension is equal to or smaller than the thickness of the strings.
Claim 19
Dependent Claim
16 words
A racket according to claim 16, wherein the width of the strip measures 0.1 to 3mm.
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) | 1989-03-10 | 1989-09-09 | 1990-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-10 | 1993-09-09 | 1994-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-10 | 1997-09-09 | 1998-03-11 | $7700.00 | Window Closed / Lapsed |