US4163341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slotless steering assembly
Assignee: California R&D Center
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Filing: 1977-02-25
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Granted: 1979-08-07
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Expires: 1997-02-25
Abstract
Abstract Miniature vehicles operable on a slotless track have their front wheels disposed on a tie bar assembly mounting a permanent magnet. The permanent magnet is disposed to be attracted to either the right or left pole piece of a solenoid. First and second operator applied steering voltages activate a zener diode to switch current through the solenoid to effect right or left steering and lane changing by the vehicles.
Inventors
- 👤 Lawrence T. Jones
- 👤 Anson Sims
- 👤 Ashley G. Howden
- 👤 Michael J. Geery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:17
CPC Classifications
A; A63; A63H; A63H18/00; A63H18/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
323 words
Miniature vehicle toy apparatus comprising: a first means for providing a first energizing path adapted to be supplied with a vehicle driving signal and first and second selectively applicable turning control signals, said first means comprising a first lane of travel for said miniature vehicle; second means for providing a second energizing path adapted to be supplied with said vehicle driving signal and said first and second turning control signals, said second means comprising a second lane of travel for said miniature vehicle; a miniature vehicle adapted to be driven by said driving signal and having a pivotable steering means; a coil means in said miniature vehicle for generating a magnetic field; means for switching a first current of a first polarity through said coil means in response to application of said first control signal and for switching a second current of a second polarity through said coil means in response to said second control signal including at least a diode and a Zener diode; means connected to said steering means and responsive to the magnetic field created by said first current for positioning said steering means in a first position to effect a change from said first lane to said second lane and responsive to the magnetic field created by said second current for positioning said steering means in a second position to effect a change from said second lane to said first lane; means for biasing said wheels including a movable permanent magnet and a pair of pole pieces, a first pole piece providing a first steering position after an application of said first current and movement of the magnet toward the first pole piece and a second pole piece providing a second steering position after application of said second current and movement of the magnet toward the second pole piece, the permanent magnet remaining in contact with its respective pole piece to hold the wheels in the desired steering position.
Claim 2
Dependent Claim
323 words
Miniature vehicle toy apparatus comprising: a first means for providing a first energizing path adapted to be supplied with a vehicle driving signal and first and second selectively applicable turning control signals, said first means comprising a first lane of travel for said miniature vehicle; second means for providing a second energizing path adapted to be supplied with said vehicle driving signal and said first and second turning control signals, said second means comprising a second lane of travel for said miniature vehicle; a miniature vehicle adapted to be driven by said driving signal and having a pivotable steering means; a coil means in said miniature vehicle for generating a magnetic field; means for switching a first current of a first polarity through said coil means in response to application of said first control signal and for switching a second current of a second polarity through said coil means in response to said second control signal including at least a diode and a Zener diode; means connected to said steering means and responsive to the magnetic field created by said first current for positioning said steering means in a first position to effect a change from said first lane to said second lane and responsive to the magnetic field created by said second current for positioning said steering means in a second position to effect a change from said second lane to said first lane; means for biasing said wheels including a movable permanent magnet and a pair of pole pieces, a first pole piece providing a first steering position after an application of said first current and movement of the magnet toward the first pole piece and a second pole piece providing a second steering position after application of said second current and movement of the magnet toward the second pole piece, the permanent magnet remaining in contact with its respective pole piece to hold the wheels in the desired steering position.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-08-06 | 1983-02-05 | 1983-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-08-06 | 1987-02-05 | 1987-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-08-06 | 1991-02-05 | 1991-08-07 | $7700.00 | Window Closed / Lapsed |