Electrically actuated wheeled toy
Abstract
Abstract AN ELECTRICALLY ACTUATED WHEELED TOY HAS A PAIR OF DRIVING WHEELS INDEPENDENTLY DRIVEN BY RESPECTIVE ELECTRIC MOTORS. EACH MOTOR HAS A RESPECTIVE ENERGIZING CIRCUIT CONNECTED TO A SOURCE OF ELECTRIC POTENTIAL ON THE VEHICLE. A SENSING MEMBER AT THE FRONT OF THE VEHICLE CARRIES THREE CONTACTS FOR SLIDING ON A SURFACE ON WHICH A RUNWAY IS DRAWN OR IMPRINTED IN ELECTRICALLY CONDUCTIVE MATERIAL. THE RUNWAY HAS A WIDTH SUCH THAT NORMALLY ONLY THE CENTER SLIDING CONTACT ENGAGES THE RUNWAY BUT, ON A CURVED PORTION OF THE RUNWAY, THE CENTER CONTACT AND ONE OF THE TWO OUTER CONTACTS ARE ELECTRICALLY INTERCONNECTED. THIS EFFECTS DE-ENERGIZATION OF ONE OF THE MOTORS SO THAT THE VEHICLE AUTOMATICALLY TURNS TO FOLLOW THE CURVATURE OF THE RUNWAY. A TERMINAL PORTION OF THE RUNWAY IS LATERALLY EXTENDED SO THAT ALL THREE SLIDING CONTACTS ARE ELECTRICALLY INTERCONNECTED, EFFECTING DE-ENERGIZATION OF BOTH MOTORS.
Inventors
- 👤 Nobuo Oda
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) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |