Patent US3172398A successfully refreshed from Google Patents.
US3172398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid fuel control system
Assignee: Individual
•
Filing: 1953-09-21
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Granted: 1965-03-09
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Expires: 1973-09-21
Abstract
No abstract record available.
Inventors
- 👤 Reggio Ferdinando Carlo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:57
CPC Classifications
F; F02; F02C; F02C9/00; F02C9/26; F02C9/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
IN A FUEL SUPPLY SYSTEM FOR AN INTERNAL COMBUSTION ENGINE, A CONSTANT CAPACITY FUEL PUMP, DRIVEN BY THE ENGINE, FOR SUPPLYING FUEL TO SAID ENGINE, A BY-PASS RELIEF VALVE AROUND THE SAID PUMP FOR VARYING THE DELIVERY OF SAID PUMP, FIRST MEANS, RESPONSIVE TO ENGINE SPEED AND TO THE RATE OF MEANS AIR FLOW THROUGH SAID ENGINE, FOR VARYING THE OPENING OF SAID VALVE, AND MEANS, INCLUDING SAID FIRST MEANS, FOR AUTOMATICALLY REGULATING THE FLOW OF FUEL FROM
Claim 2
Dependent Claim
26 words
A FUEL CONTROL SYSTEM ACCORDING TO CLAIM 3, WHICH INCLUDES MEANS FOR PREVENTING THE SPEED AND TEMPERATURE OF THE ENGINE FROM EXCEEDING PREDETERMINED, MAXIMUM SAFE LIMITS.
References Cited (Backward Citations)
US2008143A
Cited
US1971601A
Cited
US2165447A
Cited
US2306953A
Cited
US2382707A
Cited
US2435902A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |