Spring actuated centrifugal type ball throwing device
Abstract
Abstract A DEVICE FOR THROWING A BALL MECHANICALLY TO AN ANIMAL OR PERSON. THE PREFFERED EMBODIMENTS OF THE INVENTION INCLUDE A THROWING ARM RESILIENTLY MOUNTED IN A HOUSING. THE HOUSING HAS AN INLET DOOR AND OUTLET DOOR. AN ELECTRIC DRIVE MOTOR IS PROVIDED TO COCK THE THROWING ARM AGAINST A SPRING TO A POSITION WHERE THE BALL IS RECEIVED FROM THE HOUSING INLET. THE HOUSING INLET ALSO HAS A WEIGHT ACTUATED SWITCH WHICH SENSES THE PRESENCE OF THE BALL IN THE INLET AND STARTS THE ELECTRIC MOTOR TO COCK THE THROWING ARM. AFTER THE THROWING ARM IS COCKED, IT IS RELEASED TO THE URGING OF THE SPRING WHICH RAPIDLY DRIVES IT TO AN UNCOCKED POSITION, PROPELLING THE BALL OUT OF THE HOUSING OUTLET.
Inventors
- 👤 Leonard G Smith
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) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |