US3183990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple track steering application for a plurality of vehicles
Assignee: Individual
•
Filing: 1963-01-29
•
Granted: 1965-05-18
•
Expires: 1983-01-29
Abstract
No abstract record available.
Inventors
- 👤 Theodoric B Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:00
CPC Classifications
B; B62; B62D; B62D12/00; B62D12/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
IN A VEHICLE TRAIN, HAVING A COMMAND VEHICLE AND A SUBSERVIENT STEERED VEHICLE, EACH VEHICLE HAVING A PAIR OF TRACKS, AN ELECTRIC MOTOR CONTROL STEERING SYSTEM COMPRISING A PRIME MOVER, A PLURALITY OF COMPOUND WOUND, DIRECT CURRENT GENERATORS DRIVEN BY SAID PRIME MOVER, A GROUP OF SERIES WOUND MOTORS OPERABLY CONNECTED IN SERIES CIRCUIT ARRANGEMENT WITH SAID GENERATORS MECHANICALLY CONNECTED TO EACH TRACK FOR EACH OF SAID VEHICLES, SAID GROUP OF MOTORS FOR EACH TRACK BEING ENERGIZED BY ONE OF SAID GENERATORS, SAID GENERATORS FOR EACH TRACK OF EACH VEHICLE HAVING THEIR ARMATURES INTERCONNECTED BY TORQUE TRANSFERRING MEANS AND ADAPTED FOR REGENERATIVE BRAKING DURING STEERING ON TORTUOUS AND ROUGH TERRAIN, A MECHANICAL-ELECTRICAL HITCH MEANS ADAPTED TO CONNECT TWO ADJACENT VEHICLES, SAID HITCH MEANS HAVING A VARIABLE ELECTRICAL RESISTANCE MEANS ARRANGED AS A VARIABLE AND SEPARATE DIVIDER OF A BRIDGE CIRCUIT OPERATED BY SAID HITCH MEANS AND CONNECTED TO THE MOTORS CONTROLLING THE SUBSERVIENT VEHICLE TRACKS TO CORRECT THE STEERING OF SAID SUBSERVIENT VEHICLE TO CONFORM TO THE STEERING PATH OF SAID COMMAND VEHICLE.
Claim 2
Dependent Claim
173 words
IN A VEHICLE TRAIN, HAVING A COMMAND VEHICLE AND A SUBSERVIENT STEERED VEHICLE, EACH VEHICLE HAVING A PAIR OF TRACKS, AN ELECTRIC MOTOR CONTROL STEERING SYSTEM COMPRISING A PRIME MOVER, A PLURALITY OF COMPOUND WOUND, DIRECT CURRENT GENERATORS DRIVEN BY SAID PRIME MOVER, A GROUP OF SERIES WOUND MOTORS OPERABLY CONNECTED IN SERIES CIRCUIT ARRANGEMENT WITH SAID GENERATORS MECHANICALLY CONNECTED TO EACH TRACK FOR EACH OF SAID VEHICLES, SAID GROUP OF MOTORS FOR EACH TRACK BEING ENERGIZED BY ONE OF SAID GENERATORS, SAID GENERATORS FOR EACH TRACK OF EACH VEHICLE HAVING THEIR ARMATURES INTERCONNECTED BY TORQUE TRANSFERRING MEANS AND ADAPTED FOR REGENERATIVE BRAKING DURING STEERING ON TORTUOUS AND ROUGH TERRAIN, A MECHANICAL-ELECTRICAL HITCH MEANS ADAPTED TO CONNECT TWO ADJACENT VEHICLES, SAID HITCH MEANS HAVING A VARIABLE ELECTRICAL RESISTANCE MEANS ARRANGED AS A VARIABLE AND SEPARATE DIVIDER OF A BRIDGE CIRCUIT OPERATED BY SAID HITCH MEANS AND CONNECTED TO THE MOTORS CONTROLLING THE SUBSERVIENT VEHICLE TRACKS TO CORRECT THE STEERING OF SAID SUBSERVIENT VEHICLE TO CONFORM TO THE STEERING PATH OF SAID COMMAND VEHICLE.
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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) | 1968-05-17 | 1968-11-16 | 1969-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-17 | 1972-11-16 | 1973-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-17 | 1976-11-16 | 1977-05-18 | $7700.00 | Window Closed / Lapsed |