US4141550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tennis serve training device
Assignee: Individual
•
Filing: 1977-09-12
•
Granted: 1979-02-27
•
Expires: 1997-09-12
Abstract
Abstract A practicing device for use in developing and maintaining an accurate tennis serve. The device includes a carrier defining a downwardly open apex space, a support for supporting the carrier with the apex space disposed at the top of the path of a tennis ball properly tossed by the user in a simulated serving action, a flexible element underlying the apex base and arranged to be urged upwardly into the apex space by a tennis ball tossed upwardly to the apex space, and a signal device for providing a signal in the event the tennis ball is tossed incorrectly either upwardly through the apex space or laterally adjacent the apex space. The signal device may provide an audible signal. The support may be arranged for selectively supporting the practicing device either on the ground or on the elevated mounting. The flexible element further serves as an indicator for indicating that the tennis ball was properly tossed in the simulated serving action.
Inventors
- 👤 Nejat H. Denizman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:22
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/38; A63B69/385
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
145 words
A practicing device for use in developing and maintaining an accurate tennis serve ball toss, said device comprising: a carrier defining a downwardly open space; means for supporting the carrier with said space disposed at a position corresponding to the top of the path of a tennis ball properly tossed by the user in a simulated serving action; a flexible element extending fully transversely across and below said space and being arranged to be urged upwardly into said space by a tennis ball tossed upwardly thereto; and signalling means for providing a signal in the event a tennis ball is tossed incorrectly (a) upwardly through said space sufficiently to carry said flexible element therewith upwardly through said space to cause a sudden movement of the carrier, or (b) laterally adjacent said space to impact against said carrier to cause a sudden movement of the carrier.
Claim 2
Dependent Claim
145 words
A practicing device for use in developing and maintaining an accurate tennis serve ball toss, said device comprising: a carrier defining a downwardly open space; means for supporting the carrier with said space disposed at a position corresponding to the top of the path of a tennis ball properly tossed by the user in a simulated serving action; a flexible element extending fully transversely across and below said space and being arranged to be urged upwardly into said space by a tennis ball tossed upwardly thereto; and signalling means for providing a signal in the event a tennis ball is tossed incorrectly (a) upwardly through said space sufficiently to carry said flexible element therewith upwardly through said space to cause a sudden movement of the carrier, or (b) laterally adjacent said space to impact against said carrier to cause a sudden movement of the carrier.
Claim 3
Dependent Claim
19 words
The tennis serve practicing device of claim 1 wherein said signalling means comprises means for providing an audible signal.
Claim 4
Dependent Claim
15 words
The tennis serve practicing device of claim 1 wherein said signalling means comprises a bell.
Claim 5
Dependent Claim
48 words
The tennis serve practicing device of claim 1 wherein said supporting means comprises an upright and means for supporting the carrier on the upright at an adjusted height above the ground whereby said space is located accurately at the top of the user's proper serving toss ball path.
Claim 6
Dependent Claim
20 words
The tennis serve practicing device of claim 1 wherein said carrier comprises a plate having a hole defining said space.
Claim 7
Dependent Claim
18 words
The tennis serve practicing device of claim 1 including means for mounting said flexible element to said carrier.
Claim 8
Dependent Claim
16 words
The tennis serve practicing device of claim 1 wherein said flexible element comprises a flexible net.
Claim 9
Dependent Claim
24 words
The tennis serve practicing device of claim 1 wherein said signalling means comprises a signalling device mounted to a top portion of said carrier.
Claim 10
Dependent Claim
27 words
The tennis serve practicing device of claim 1 wherein said signalling means comprises a signalling device mounted to said carrier to be disposed directly above said space.
Claim 11
Dependent Claim
57 words
The tennis serve practicing device of claim 1 wherein said supporting means comprises an extensible upright and means for locking the upright in an adjusted arrangement with the carrier supported on the upright at a preselected height above the ground whereby said space is located accurately at the top of the user's proper serving toss ball path.
Claim 12
Dependent Claim
19 words
The tennis serve practicing device of claim 1 wherein said supporting means comprises hanger means for hanging the carrier.
Claim 13
Dependent Claim
34 words
The tennis serve practicing device of claim 1 wherein said carrier comprises means defining a circular hole having a diameter slightly greater than the diameter of a conventional tennis ball and defining said space.
Claim 14
Dependent Claim
50 words
The tennis serve practicing device of claim 1 wherein said carrier comprises means defining a circular hole having a diameter slightly greater than the diameter of a conventional tennis ball and defining said space, and said flexible element comprises a flexible net carried by said carrier and underlying said hole.
Claim 15
Dependent Claim
27 words
The tennis serve practicing device of claim 1 wherein said carrier includes a removable mounting bracket and means for mounting the bracket selectively to said supporting means.
Claim 16
Dependent Claim
34 words
The tennis serve practicing device of claim 1 wherein said supporting means comprises an upright having a sharp lower end, and a mounting stand having a tubular upright socket selectively receiving said lower end.
Claim 17
Dependent Claim
20 words
The tennis serve practicing device of claim 1 wherein said supporting means comprises an upright having a sharp lower end.
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) | 1982-02-26 | 1982-08-28 | 1983-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-26 | 1986-08-28 | 1987-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-26 | 1990-08-28 | 1991-02-27 | $7700.00 | Window Closed / Lapsed |