Patent US5098098A successfully refreshed from Google Patents.
US5098098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock and vibration absorbant sports racket
Assignee: Individual
•
Filing: 1988-07-07
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Granted: 1992-03-24
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Expires: 2008-07-07
Abstract
Abstract A sports racket, especially a tennis racket, having reduced tendancy to transmit vibrational energy to the arm of the user, having a bow portion, and a hollow space within or surrounding said bow portion fully packed with spherical plastic beads such as low density polystyrene beads.
Inventors
- 👤 John W. Petralia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:10
CPC Classifications
A; A63; A63B; A63B49/00; A63B49/02; A63B60/00; A63B60/54; A63B49/022; A63B49/03
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
56 words
A sports racket having reduced tendency to transmit vibrational energy to the arm of the user, having a bow portion, a throat, and a handle, spherical plastic beads, and a space or section within or outside said bow portion sufficiently fully packed with said plastic beads so as to prevent any unrestrained movement of the beads.
Claim 2
Dependent Claim
56 words
A sports racket having reduced tendency to transmit vibrational energy to the arm of the user, having a bow portion, a throat, and a handle, spherical plastic beads, and a space or section within or outside said bow portion sufficiently fully packed with said plastic beads so as to prevent any unrestrained movement of the beads.
Claim 3
Dependent Claim
15 words
Sports racket according to claim 1 wherein said hollow space is within said bow portion.
Claim 4
Dependent Claim
31 words
Sports racket according to claim 1 wherein said hollow space is a continuous space within said bow portion, said throat, and said handle, all fully packed with said spherical plastic beads.
Claim 5
Dependent Claim
22 words
Sports racket according to claim 1 wherein said hollow space is within a channel surrounding said bow portion of said racket frame.
Claim 6
Dependent Claim
28 words
Sports racket according to claim 1 wherein said channel is formed by a tubular, light weight plastic bead-containing device attached to the outside circumfrence of said bow portion.
Claim 7
Dependent Claim
14 words
Sports racket according to claim 1 having weight, size, and dimensions suitable for tennis.
Claim 8
Dependent Claim
23 words
Sports racket according to claim 1 wherein said beads are selected from the group consisting of low density polystyrene, PVC, acrylic, and butadiene.
Claim 9
Dependent Claim
26 words
Sports racket according to claim 1 wherein said beads are so fully packed within said hollow space that said beads comprise about 60% of said space.
Claim 10
Dependent Claim
15 words
Sports racket according to claim 1 suitable for being strung and used for playing tennis.
Claim 11
Dependent Claim
13 words
Tennis racket according to claim 1 weighing between about 11.5 and 13.5 ounces.
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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) | 1995-03-24 | 1995-09-23 | 1996-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-24 | 1999-09-23 | 2000-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-24 | 2003-09-23 | 2004-03-24 | $7700.00 | Window Closed / Lapsed |