US3349644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle engine control
Assignee: Ethyl Corp
•
Filing: 1965-04-01
•
Granted: 1967-10-31
•
Expires: 1985-04-01
Abstract
No abstract record available.
Inventors
- 👤 Gish Rollin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:08
CPC Classifications
F; F02; F02M; F02M3/00; F02M3/02; F02M3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
IN AN INTERNAL COMBUSTION VEHICLE PROPULSION SYSTEM HAVING A SELECTABLE RATIO TRANSMISSION AND A CARBURETOR FUEL CUT-OFF CONTROL THAT CUTS OFF THE SUPPLY OF FUEL TO THE ENGINE IN RESPONSE TO ENGINE DECELERATION FROM PREDETERMINED SPEEDS IN ORDER TO REDUCE THE EXHAUSTING OF SMOGCONTRIBUTING EMISSION, THE IMPROVEMENT ACCORDING TO WHICH THE VEHICLE HAS A SUPPLEMENTARY AUTOMATIC CONTROL CONNECTED BETWEEN THE TRANSMISSION AND THE CUT-OFF CONTROL TO DISABLE THE CUTTING OFF WHEN THE DECELERATION IS EFFECTED WITH THE TRANSMISSION NOT IN A CRUISE RATIO.
Claim 2
Dependent Claim
83 words
IN AN INTERNAL COMBUSTION VEHICLE PROPULSION SYSTEM HAVING A SELECTABLE RATIO TRANSMISSION AND A CARBURETOR FUEL CUT-OFF CONTROL THAT CUTS OFF THE SUPPLY OF FUEL TO THE ENGINE IN RESPONSE TO ENGINE DECELERATION FROM PREDETERMINED SPEEDS IN ORDER TO REDUCE THE EXHAUSTING OF SMOGCONTRIBUTING EMISSION, THE IMPROVEMENT ACCORDING TO WHICH THE VEHICLE HAS A SUPPLEMENTARY AUTOMATIC CONTROL CONNECTED BETWEEN THE TRANSMISSION AND THE CUT-OFF CONTROL TO DISABLE THE CUTTING OFF WHEN THE DECELERATION IS EFFECTED WITH THE TRANSMISSION NOT IN A CRUISE RATIO.
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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |