US3087340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle speed warning and cruise control system
Assignee: Motors Liquidation Co
•
Filing: 1961-09-11
•
Granted: 1963-04-30
•
Expires: 1981-09-11
Abstract
No abstract record available.
Inventors
- 👤 Eugene C Mcmurray
- 👤 Henry H Harada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:42
CPC Classifications
B; B60; B60K; B60K31/00; B60K31/06; B60K31/08; F; F02; F02D; F02D31/00; F02D31/001; F02D31/002; G; G01; G01P; G01P1/00; G01P1/07; G01P1/08; G01P1/10; G01P1/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
MECHANISM FOR SENSING ACTUAL SPEED OF AN ELEMENT AND COMPARING THE SENSED SPEED WITH A DESIRED ELEMENT SPEED AND DEVELOPING A SPEED ERROR SIGNAL, SAID MECHANISM COMPRISING A SPEED CUP, DRIVE MEANS FOR SAID SPEED CUP DRIVEN IN PROPORTION TO ACTUAL ELEMENT SPEED, A FIRST ELECTRICAL CONTACT DRIVEN BY SAID SPEED CUP, A SECOND ELECTRICAL CONTACT CENTER-POSITIONED RELATIVE TO SAID FIRST CONTACT AT A DESIRED ELEMENT SPEED, OSCILLATING LINKAGE CONNECTED TO SAID SECOND CONTACT AND DRIVEN BY SAID SPEED CUP DRIVING MEANS TO OSCILLATE SAID SECOND CONTACT THROUGHOUT A PROPORTIONAL SPEED ZONE, SAID FIRST AND SECOND CONTACTS BEING ENGAGEABLE AND DISENGAGEABLE IN SAID ZONE FOR VARYING TIME PERIODS PROPORTIONAL TO THE DIFFERENCE BETWEEN THE SENSED ELEMENT SPEED AND THE SET ELEMENT SPEED, AND AN ELECTRICAL CIRCUIT CONTROLLED BY SAID FIRST AND SECOND CONTACTS AND INCLUDING A SIGNAL AMPLIFIER FOR AMPLIFYING THE PROPORTIONAL SPEED ERROR SIGNAL GENERATED IN SAID CIRCUIT.
Claim 2
Dependent Claim
149 words
MECHANISM FOR SENSING ACTUAL SPEED OF AN ELEMENT AND COMPARING THE SENSED SPEED WITH A DESIRED ELEMENT SPEED AND DEVELOPING A SPEED ERROR SIGNAL, SAID MECHANISM COMPRISING A SPEED CUP, DRIVE MEANS FOR SAID SPEED CUP DRIVEN IN PROPORTION TO ACTUAL ELEMENT SPEED, A FIRST ELECTRICAL CONTACT DRIVEN BY SAID SPEED CUP, A SECOND ELECTRICAL CONTACT CENTER-POSITIONED RELATIVE TO SAID FIRST CONTACT AT A DESIRED ELEMENT SPEED, OSCILLATING LINKAGE CONNECTED TO SAID SECOND CONTACT AND DRIVEN BY SAID SPEED CUP DRIVING MEANS TO OSCILLATE SAID SECOND CONTACT THROUGHOUT A PROPORTIONAL SPEED ZONE, SAID FIRST AND SECOND CONTACTS BEING ENGAGEABLE AND DISENGAGEABLE IN SAID ZONE FOR VARYING TIME PERIODS PROPORTIONAL TO THE DIFFERENCE BETWEEN THE SENSED ELEMENT SPEED AND THE SET ELEMENT SPEED, AND AN ELECTRICAL CIRCUIT CONTROLLED BY SAID FIRST AND SECOND CONTACTS AND INCLUDING A SIGNAL AMPLIFIER FOR AMPLIFYING THE PROPORTIONAL SPEED ERROR SIGNAL GENERATED IN SAID CIRCUIT.
References Cited (Backward Citations)
US1990354A
Cited
US2822881A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |