Signalling device to be used with a sport implement for detecting and indicating the proper or improper use thereof
Abstract
Abstract A signalling device to be used with a sport implement, such as, for example, a tennis racquet or golf club, for detecting and indicating the proper use thereof, includes a plurality of mechanical reed members, the longitudinal axes of which are disposed with respect to the tennis racquet or golf club structure as to be aligned with the stroke direction when a proper stroke is performed whereby the signalling device will emit a well-defined audible signal indicating the performance of a proper stroke. The reed members may be disposed within a housing which may, in turn, be mounted upon the racquet frame or club shaft, or alternatively, may be integrally disposed within the frame or shaft, the latter structures serving as the housings thereof. Still further, and alternatively, in lieu of the reed members being aligned with the stroke direction, that is, the same are, within such embodiment, disposed perpendicular to the plane of the tennis racquet or golf club face, the reed members may likewise be disposed parallel to the plane of the racquet or club face and perpendicular to the longitudinal axis of the implement whereupon, instead of such members emitting a signal when a proper stroke is performed, such members emit an audible signal when an improper stroke is performed.
Inventors
- 👤 Kenneth S. Barasch
Bibliographic Details
Claims Analysis
Total Claims: 3References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-12 | 1981-12-12 | 1982-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-12 | 1985-12-12 | 1986-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-12 | 1989-12-12 | 1990-06-13 | $7700.00 | Window Closed / Lapsed |