US4049266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sport practice apparatus
Assignee: Individual
•
Filing: 1976-01-23
•
Granted: 1977-09-20
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Expires: 1996-01-23
Abstract
Abstract An apparatus for practising stroking a ball with a racket as in the game of tennis which provides an indication of correct execution of a stroke comprising a racket target means and a rotating ball means. The rotating ball means is mounted for rotation in a vertical plane upon being struck. A path defining means is provided which arrests the rotation of the ball except when it has been hit correctly.
Inventors
- 👤 Robert J. Feiler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:15
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/38; A63B69/0073; A63B69/0079; A63B69/385
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
273 words
An apparatus for practicing strokes comprising: a substantially vertical upstanding support member having a base; a substantially horizontal second support member; means adjustably mounting said second support member to said upstanding first member adjacent the upper end thereof; an elongated wire; said wire having means rotatably attaching one of its ends to said second support member adjacent the outer free end thereof, such that said wire is rotatable about the longitudinal axis of said second support member in a vertical plane; a ball; said ball being mounted on the other end of said wire and being suspended below said second support member whereby being struck on the exercise of a stroke will cause said ball and wire to travel in said vertical plane around the longitudinal axis of said second support member; a guide member; said guide member being a pair of elongated resilient arms, each of said arms being attached to said second support member and extending substantially vertically upwards therefrom, one of said arms being positioned on one side of said vertical plane of travel of said ball and wire and the other arm being positioned on the opposite side of said second vertical plane of travel of said ball and wire, the upper end of each of said arms being bent towards said second vertical plane of travel to define a path through which said wire may pass when said ball is struck, whereby when said ball is hit correctly said wire will travel through said path without touching said arms and if said ball is hit incorrectly at least one of said arms will be touched by said wire.
Claim 2
Independent Claim
273 words
An apparatus for practicing strokes comprising: a substantially vertical upstanding support member having a base; a substantially horizontal second support member; means adjustably mounting said second support member to said upstanding first member adjacent the upper end thereof; an elongated wire; said wire having means rotatably attaching one of its ends to said second support member adjacent the outer free end thereof, such that said wire is rotatable about the longitudinal axis of said second support member in a vertical plane; a ball; said ball being mounted on the other end of said wire and being suspended below said second support member whereby being struck on the exercise of a stroke will cause said ball and wire to travel in said vertical plane around the longitudinal axis of said second support member; a guide member; said guide member being a pair of elongated resilient arms, each of said arms being attached to said second support member and extending substantially vertically upwards therefrom, one of said arms being positioned on one side of said vertical plane of travel of said ball and wire and the other arm being positioned on the opposite side of said second vertical plane of travel of said ball and wire, the upper end of each of said arms being bent towards said second vertical plane of travel to define a path through which said wire may pass when said ball is struck, whereby when said ball is hit correctly said wire will travel through said path without touching said arms and if said ball is hit incorrectly at least one of said arms will be touched by said wire.
Claim 3
Dependent Claim
38 words
The apparatus the claim 1 wherein said ball is mounted on said wire by attachment at a point on the ball surface opposite the point of contact when the ball is struck in the exercise of a stroke.
Claim 4
Dependent Claim
27 words
The apparatus of claim 2 wherein said mounting wire bears an enlargement at the ball mounted end to limit the movement of the ball on the wire.
Claim 5
Dependent Claim
22 words
The apparatus of claim 1 wherein said upstanding support member bears indicia for indicating positions of the adjustably mounted second support member.
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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) | 1980-09-19 | 1981-03-21 | 1981-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-19 | 1985-03-21 | 1985-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-19 | 1989-03-21 | 1989-09-20 | $7700.00 | Window Closed / Lapsed |