Neutral start system for riding mowers
Abstract
Abstract A NEUTRAL START ELECTRICAL SYSTEM PREVENTS THE ENGINE ON A RIDING MOWER FROM STARTING UNLESS THE MOWER IS DISENGAGED AND THE VEHICLE DRIVE IS DISENGAGED. THIS SYSTEM IS BASED ON A SWITCH IN THE ENGINE IGNITION CIRCUIT WHICH NORMALLY COMPLETES THE IGNITION CIRCUIT THROUGH AN AUXILIARY CIRCUIT, BUT WHICH REMOVES THE AUXILIARY CIRCUIT FROM THE IGNITION CIRCUIT WHEN THE ENGINE IS RUNNING. THE AUXILIARY CIRCUIT INCLUDES FIRST AND SECOND ADDITIONAL SWITCHES IN SERIES WITH EACH OTHER. THE FIRST ADDITIONAL SWITCH IS RESPONSIVE TO A CONDITION OF THE CLUTCH FOR THE VEHICLE DRIVE AND IS OPEN WHEN THE VEHICLE DRIVE IS ENGAGED. THE SECOND ADDITIONAL SWITCH IS RESPONSIVE TO A CONDITION OF THE CLUTCH FOR THE MOWER DRIVE AND IS OPEN WHEN THE MOWER DRIVE IS ENGAGED. THE NEUTRAL START ELECTRICAL SYSTEM PROVIDES AN OPEN IGNITION CIRCUIT IF AN ATTEMPT IS MADE TO START THE ENGINE WHILE EITHER THE VEHICLE CLUTCH OR MOWER CLUTCH IS ENGAGED TO THEREBY PREVENT STARTING OF THE ENGINE.
Inventors
- 👤 Martin Adolph Berk
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) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |