US3110296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel preheater and economizer
Assignee: Individual
•
Filing: 1961-04-24
•
Granted: 1963-11-12
•
Expires: 1981-04-24
Abstract
No abstract record available.
Inventors
- 👤 Axel J Lundi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:50
CPC Classifications
F; F02; F02M; F02M31/00; F02M31/02; F02M31/16; F02M1/00; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/434; F02M2700/4342; F02M2700/4347; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
A FUEL SUPPLY SYSTEM COMPRISING IN COMBINATION AN INTERNAL COMBUSTION ENGINE HAVING A CIRCULATING WATER COOLING SYSTEM, A CARBURETOR AND A FUEL PUMP FOR SUPPLYING FUEL FROM A SOURCE OF SUPPLY TO SAID CARBURETOR, A FUEL PREHEATER MOUNTED ON SAID ENGINE ADJACENT SAID CARBURETOR, CONNECTING MEANS COMMUNICATING SAID PREHEATER WITH SAID COOLING SYSTEM AND CIRCULATING HOT WATER THROUGH SAID PREHEATER IN A STRAIGHT LINE FLOW WITH A MINIMUM BACK PRESSURE ON SAID COOLING SYSTEM, MEANS FOR CIRCULATING FUEL TO BE HEATED IN SAID PREHEATER IN HEAT EXCHANGE RELATION WITH THE CIRCULATING HOT WATER THEREIN AND IN A PATH SURROUNDING AND EXTENDING SUBSTANTIALLY THE ENTIRE LENGTH OF BUT OUT OF SAID STRAIGHT LINE OF FLOW OF SAID HOT WATER, A FUEL SUPPLY CONDUIT CONNECTING SAID FUEL PUMP WITH SAID CONNECTING MEANS AND HAVING A CONTROL VALVE THEREIN, A HEATED FUEL DELIVERY CONDUIT CONNECTING SAID FUEL CIRCULATING MEANS TO SAID CARBURETOR, A FUEL BYPASS CONDUIT CONNECTING SAID HEATED FUEL DELIVERY CONDUIT TO SAID FUEL SUPPLY CONDUIT BETWEEN SAID VALVE AND SAID FUEL PUMP WHEREBY TO PROPORTION THE FLOW OF FUEL FROM SAID FUEL PUMP TO SAID PREHEATER FUEL CIRCULATING MEANS AND TO SAID CARBURETOR.
Claim 2
Dependent Claim
192 words
A FUEL SUPPLY SYSTEM COMPRISING IN COMBINATION AN INTERNAL COMBUSTION ENGINE HAVING A CIRCULATING WATER COOLING SYSTEM, A CARBURETOR AND A FUEL PUMP FOR SUPPLYING FUEL FROM A SOURCE OF SUPPLY TO SAID CARBURETOR, A FUEL PREHEATER MOUNTED ON SAID ENGINE ADJACENT SAID CARBURETOR, CONNECTING MEANS COMMUNICATING SAID PREHEATER WITH SAID COOLING SYSTEM AND CIRCULATING HOT WATER THROUGH SAID PREHEATER IN A STRAIGHT LINE FLOW WITH A MINIMUM BACK PRESSURE ON SAID COOLING SYSTEM, MEANS FOR CIRCULATING FUEL TO BE HEATED IN SAID PREHEATER IN HEAT EXCHANGE RELATION WITH THE CIRCULATING HOT WATER THEREIN AND IN A PATH SURROUNDING AND EXTENDING SUBSTANTIALLY THE ENTIRE LENGTH OF BUT OUT OF SAID STRAIGHT LINE OF FLOW OF SAID HOT WATER, A FUEL SUPPLY CONDUIT CONNECTING SAID FUEL PUMP WITH SAID CONNECTING MEANS AND HAVING A CONTROL VALVE THEREIN, A HEATED FUEL DELIVERY CONDUIT CONNECTING SAID FUEL CIRCULATING MEANS TO SAID CARBURETOR, A FUEL BYPASS CONDUIT CONNECTING SAID HEATED FUEL DELIVERY CONDUIT TO SAID FUEL SUPPLY CONDUIT BETWEEN SAID VALVE AND SAID FUEL PUMP WHEREBY TO PROPORTION THE FLOW OF FUEL FROM SAID FUEL PUMP TO SAID PREHEATER FUEL CIRCULATING MEANS AND TO SAID CARBURETOR.
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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) | 1966-11-11 | 1967-05-13 | 1967-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-11 | 1971-05-13 | 1971-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-11 | 1975-05-13 | 1975-11-12 | $7700.00 | Window Closed / Lapsed |