Speed indicator for clubs, bats and the like
Abstract
Abstract A SPEED INDICATOR FOR ATTACHMENT TO GOLF CLUBS, BASEBALL BATS OR THE LIKE TO REGISTER THE SPEED OF MOVEMENT OF THE CLUB HEAD OR STRIKING PORTION OF THE BAT FROM WHICH THE DISTANCE VELOCITY OF FLIGHT OF THE BALL MAY BE CALCULATED. THE DEVICE IS LIGHTWEIGHT TO AVOID INFLUENCE ON THE SWING OF THE CLUB, AND INCLUDES A SUPPORT RELEASABLY ATTACHABLE TO THE CLUB OR BAT ADJACENT THE STRIKING PORTION THEREOF, AND A MOVABLE INDICATOR CARRIED BY AND FRICTIONALLY ENGAGING SAID SUPPORT TO RETAIN A POSITION RELATIVE TO SAID SUPPORT TO WHICH POSITION IT IS MOVED BY A WEIGHT WHICH IS SPRING RETRACTED IMMEDIATELY UPON TERMINATION OF CENTRIFUGAL FORCE DUE TO THE SWING OF THE CLUB TO AVOID FURTHER INFLUENCE ON THE INDICATOR.
Inventors
- 👤 Grady B Davis
Bibliographic Details
Claims Analysis
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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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |