Patent US6537300B2 successfully refreshed from Google Patents.
US3596401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle guidance systems
Assignee: Individual
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Filing: 1970-02-18
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Granted: 1971-08-03
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Expires: 1990-02-18
Abstract
Abstract A toy-type vehicle carries a movable magnet for detecting a guide wire in the roadbed. Movement of the magnet actuates magnetic switch means in circuit with motors driving the vehicle wheels, so that the vehicle is steered by driving along a path predetermined by the guide wire. In another embodiment the magnetic switch means control a steering motor of a dirigible vehicle wheel.
Inventors
- 👤 Arthur J Camire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:17
CPC Classifications
A; A63; A63H; A63H18/00; A63H18/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
108 words
The combination of a vehicle which includes electrically actuated wheel means for steering the same on a roadbed provided with a magnetically cooperative guide element for guiding the vehicle along a predetermined path, and guidance means carried by said vehicle and comprising a detector magnet attractable by the roadway guide element and swingable in a plane transverse of the vehicle, and magnetic switch means responsive to movement of said magnet, said switch means being in circuit with a source of current and with said electrically actuated wheel means so that the vehicle may be steered along he predetermined path of the guide element as detected by said magnet.
Claim 2
Dependent Claim
108 words
The combination of a vehicle which includes electrically actuated wheel means for steering the same on a roadbed provided with a magnetically cooperative guide element for guiding the vehicle along a predetermined path, and guidance means carried by said vehicle and comprising a detector magnet attractable by the roadway guide element and swingable in a plane transverse of the vehicle, and magnetic switch means responsive to movement of said magnet, said switch means being in circuit with a source of current and with said electrically actuated wheel means so that the vehicle may be steered along he predetermined path of the guide element as detected by said magnet.
Claim 3
Dependent Claim
62 words
The combination as defined in claim 1 which is further characterized in that said vehicle is steered by driving, said wheel means including a pair of driving wheels at opposite sides of the vehicle and a pair of electric motors driving the respective wheels, said switch means being operative to selectively energize said motors together or either in exclusion of the other.
Claim 4
Dependent Claim
25 words
The combination as defined in claim 1 wherein said wheel means includes at least one dirigible wheel and electrically actuated means for steering the same.
Claim 5
Dependent Claim
26 words
The combination as defined in claim 3 wherein said electrically actuated means for steering said dirigible wheel comprise a reversible motor operatively connected to said wheel.
Claim 6
Dependent Claim
59 words
The combination as defined in claim 3 which is further characterized in that said switch means are movable transversely of the vehicle relative to said magnet, together with means responsive to steering movement of said dirigible wheel for moving said switch means and repositioning the same relative to the magnet by feedback from the steering movement of said wheel.
Claim 7
Dependent Claim
74 words
The combination as defined in claim 1 which is further characterized in that said vehicle is steered by driving, said wheel means including a pair of dirigible driving wheels at opposite sides of the vehicle and a pair of electric motors driving the respective wheels, said switch means being operative to selectively energize said motors together or either in exclusion of the other, and a transverse tie rod connecting said pair of wheels together.
Claim 8
Dependent Claim
46 words
The combination as defined in claim 6 which is further characterized in that said magnet and said switch means are carried by said tie rod and are thereby movable transversely of the vehicle for repositioning the magnet by feedback from the steering movement of said wheels.
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |