US3207255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for limiting and controlling the traveling speed of automotive vehicles
Assignee: Mannesmann VDO AG
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Filing: 1964-01-21
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Granted: 1965-09-21
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Expires: 1984-01-21
Abstract
No abstract record available.
Inventors
- 👤 Hahlganss Gunter
- 👤 Gerhard F Lindner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:48
CPC Classifications
F; F02; F02D; F02D31/00; F02D31/001; F02D31/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A METHOD OF CONTROLLING AND LIMITING THE SPEED OF AN AUTOMOTIVE VEHICLE INCLUDING A GAS PEDAL ROD AND A THROTTLE OPERATED BY THE LATTER BY MENS OF A REVERISBLE ELECTRIC MOTOR HAVING TWO FIELD WINDINGS AND AFFECTING SAID GAS PEDAL AND SAID THROTTLE, RESPECTIVELY, THE DIRECTION OF ROTATION OF SAID CONTROL MOTOR BEING DEPENDENT UPON THE DIFFERENCE BETWEEN THE PREVAILING ACTUAL SPEED AND A SETTABLE PREDETERMINED SPEED OF SAID AUTOMOTIVE VEHICLE AND UPON CORRESPONDING REFERENCE VALUES, RESPECTIVELY, COMPRISING THE STEPS OF FEEDING OF IMPULSE-LIKE CURRENTS CONTINUOUSLY THROUGH BOTH FIELD WINDINGS IN BOTH DIRECTIONS OF ROTATION TO SAID CONTROL MOTOR, WHEREBY THE DIFFERENCE BETWEEN THE ENERGIZATIONS OF SAID WINDINGS VARIES CONTINUOUSLY FROM A MAGNITUDE OF ZERO VALUE AT THE PREDETERMINED SPEED TO A VALUE DIFFERENT FROM ZERO PROPORTIONALLY TO THE VARIATION OF THE ACTUAL SPEED FROM THE PREDETERMINED SPEED.
Claim 2
Independent Claim
138 words
A METHOD OF CONTROLLING AND LIMITING THE SPEED OF AN AUTOMOTIVE VEHICLE INCLUDING A GAS PEDAL ROD AND A THROTTLE OPERATED BY THE LATTER BY MENS OF A REVERISBLE ELECTRIC MOTOR HAVING TWO FIELD WINDINGS AND AFFECTING SAID GAS PEDAL AND SAID THROTTLE, RESPECTIVELY, THE DIRECTION OF ROTATION OF SAID CONTROL MOTOR BEING DEPENDENT UPON THE DIFFERENCE BETWEEN THE PREVAILING ACTUAL SPEED AND A SETTABLE PREDETERMINED SPEED OF SAID AUTOMOTIVE VEHICLE AND UPON CORRESPONDING REFERENCE VALUES, RESPECTIVELY, COMPRISING THE STEPS OF FEEDING OF IMPULSE-LIKE CURRENTS CONTINUOUSLY THROUGH BOTH FIELD WINDINGS IN BOTH DIRECTIONS OF ROTATION TO SAID CONTROL MOTOR, WHEREBY THE DIFFERENCE BETWEEN THE ENERGIZATIONS OF SAID WINDINGS VARIES CONTINUOUSLY FROM A MAGNITUDE OF ZERO VALUE AT THE PREDETERMINED SPEED TO A VALUE DIFFERENT FROM ZERO PROPORTIONALLY TO THE VARIATION OF THE ACTUAL SPEED FROM THE PREDETERMINED SPEED.
References Cited (Backward Citations)
US2911077A
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US2973051A
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US3122678A
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US3070185A
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US3153746A
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US3116807A
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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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |