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US4309032A Expired / Lapsed US ⏱️ 0.0 years remaining

Tennis training device

Assignee: Individual
•
Filing: 1979-05-24
•
Granted: 1982-01-05
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Expires: 1999-05-24
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Abstract

Abstract A tennis training device includes a rigid backboard and a pair of laterally spaced rigid target areas mounted on the backboard. Detection apparatus is provided for detecting impact on the target areas, which detection detection apparatus is selectively activated in accordance with a predetermined sequence in order to require the player to control movement of a ball rebounding from the backboard and target areas from one activated target area to another.

Inventors

  • 👤 Walter P. Facius

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 12:38
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/0097; A63B24/00; A63B24/0021; A63B2024/0037; A63B2024/004; A63B63/00; A63B63/06; A63B2063/065; A63B69/38

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 218 words
A tennis training device comprising a rigid vertical backboard, a pair of laterally spaced rigid target areas mounted on said backboard, each of said target areas including means for detecting an impact thereon, said backboard being vertically positioned to cause balls impacting against the backboard or the target areas to rebound back towards the player after each such impact to enable the player to stroke the same ball a plurality of times in sequence; and means for activating said detecting means associated with each said target areas in accordance with a predetermined sequence to require the player to control movement of a ball rebounding from the backboard or target by stroking the ball back to the activated target area; means for resiliently suspending said rigid target areas in the backboard in a first position whereby the target areas lie substantially in the same plane as the backboard and are permitted to move inwardly of the backboard slightly; said detecting means comprising microswitches mounted on the backboard for contact with their associated target areas upon inward movement of the target area when the target area is hit; means for limiting movement of the target area between said first position and said second innermost position; and said limiting being adjustable so that said first and second positions may be varied.
Claim 2
Dependent Claim 218 words
A tennis training device comprising a rigid vertical backboard, a pair of laterally spaced rigid target areas mounted on said backboard, each of said target areas including means for detecting an impact thereon, said backboard being vertically positioned to cause balls impacting against the backboard or the target areas to rebound back towards the player after each such impact to enable the player to stroke the same ball a plurality of times in sequence; and means for activating said detecting means associated with each said target areas in accordance with a predetermined sequence to require the player to control movement of a ball rebounding from the backboard or target by stroking the ball back to the activated target area; means for resiliently suspending said rigid target areas in the backboard in a first position whereby the target areas lie substantially in the same plane as the backboard and are permitted to move inwardly of the backboard slightly; said detecting means comprising microswitches mounted on the backboard for contact with their associated target areas upon inward movement of the target area when the target area is hit; means for limiting movement of the target area between said first position and said second innermost position; and said limiting being adjustable so that said first and second positions may be varied.
Claim 3
Dependent Claim 34 words
A tennis training device as defined in claim 1 including means for signaling to the player which of the target area detecting means is activated before the player strokes the ball towards the backboard.
Claim 4
Dependent Claim 31 words
A tennis training device as defined in claim 2 including means for counting the number of impacts by the player against the activated target areas during a predetermined period of time.

References Cited (Backward Citations)

US2087575A Cited
US2657931A Cited
US3254433A Cited
US3133733A Cited
US3508752A Cited
US4116437A Cited
US3874664A Cited
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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) 1985-01-04 1985-07-06 1986-01-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1989-01-04 1989-07-06 1990-01-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1993-01-04 1993-07-06 1994-01-05 $7700.00 Window Closed / Lapsed

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