Patent US3590526A successfully refreshed from Google Patents.
US3590526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remotely steerable vehicle
Assignee: Individual
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Filing: 1969-05-05
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Granted: 1971-07-06
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Expires: 1989-05-05
Abstract
Abstract A self-propelled toy vehicle adapted for use on a track or other surface where its steering and speed may be controlled by electromechanical or electronic means. The drive wheels are independently driven at selected speeds and the driven wheels are mounted so that direction of movement of the vehicle can be controlled readily by regulating the relative speeds of the driven wheels.
Inventors
- 👤 Herman F Deyerl
- 👤 Robert J Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:32
CPC Classifications
A; A63; A63H; A63H17/00; A63H17/26; A63H17/36
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
92 words
A wheeled vehicle comprising a frame structure, a pair of drive wheels mounted for independent rotation at one end of the frame, a pair of motor means supported on said frame for independent operation and each drivingly connected to a different one of said wheels, and a driven wheel pivotally mounted on a casterlike mounting at the other end of said frame, each of said motor means including a variable speed electric motor, said motors being responsive to separate control signals so that differential speeds can be imparted to said drive wheels.
Claim 2
Dependent Claim
92 words
A wheeled vehicle comprising a frame structure, a pair of drive wheels mounted for independent rotation at one end of the frame, a pair of motor means supported on said frame for independent operation and each drivingly connected to a different one of said wheels, and a driven wheel pivotally mounted on a casterlike mounting at the other end of said frame, each of said motor means including a variable speed electric motor, said motors being responsive to separate control signals so that differential speeds can be imparted to said drive wheels.
Claim 3
Dependent Claim
52 words
A wheeled vehicle as defined by claim 1, wherein the casterlike mounting for said driven wheel comprises an axle shaft on which said driven wheel is mounted, an arm pivotally connected on a vertical axis at its one end to said frame and connected at its other end to said axle shaft.
Claim 4
Dependent Claim
28 words
A wheeled vehicle as defined by claim 2, wherein a second driven wheel is pivotally mounted on a second casterlike mounting at said other end of said frame.
Claim 5
Dependent Claim
37 words
A wheeled vehicle as defined by claim 3, wherein a tie bar is pivotally connected to and extends between the other ends of the arms so as to maintain a generally parallel relationship between the driven wheels.
Claim 6
Dependent Claim
28 words
A wheeled vehicle as defined by claim 4, wherein stop means are mounted on said frame structure to limit the extent of pivotal movement of said driven wheels.
Claim 7
Dependent Claim
80 words
A wheeled vehicle comprising a frame structure, a pair of drive wheels mounted for independent rotation at one end of said frame, a pair of variable speed electric motors supported on said frame for independent operation and each drivingly connected to a different one of said wheels, a pair of casters mounted at the other end of said frame, said electric motors being responsive to different signals so that varying driving torques can be applied selectively to each driven wheel.
Claim 8
Dependent Claim
80 words
A wheeled vehicle comprising a frame structure, a pair of drive wheels mounted for independent rotation at one end of said frame, a pair of variable speed electric motors supported on said frame for independent operation and each drivingly connected to a different one of said wheels, a pair of casters mounted at the other end of said frame, said electric motors being responsive to different signals so that varying driving torques can be applied selectively to each driven wheel.
Claim 9
Dependent Claim
29 words
A wheeled vehicle as defined by claim 6, wherein a tie bar is pivotally connected to the wheels of said casters to maintain the wheels in generally parallel relationship.
Claim 10
Dependent Claim
26 words
A wheeled vehicle as defined by claim 6, wherein limit stops are provided on said frame structure to limit the extent of pivoting of said casters.
References Cited (Backward Citations)
US3144731A
Cited
GB994832A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |