US3142291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injection control apparatus
Assignee: Simmonds Precision Products Inc
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Filing: 1962-11-19
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Granted: 1964-07-28
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Expires: 1982-11-19
Abstract
No abstract record available.
Inventors
- 👤 Norvan W Bostwick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:26
CPC Classifications
F; F02; F02D; F02D1/00; F02D1/02; F02D1/08; F02D1/12; F02D1/14; F02M; F02M59/00; F02M2700/00; F02M2700/13; F02M2700/1317
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
IN AN APPARATUS FOR SUPPLYING FUEL TO AN INTERNAL COMBUSTION ENGINE HAVING AN AIR INTAKE SYSTEM, A THROTTLE VALVE IN SAID SYSTEM AND ADJUSTABLE TO REGULATE AIR FLOW THROUGH SAID SYSTEM, AND A VARIABLE DELIVERY ENGINE-DRIVEN FUEL INJECTION PUMP, PROVIDED WITH A PRESSURE COMPARTMENT AND WITH A PRESSURE-RESPONSIVE CONTROL DEVICE IN SAID COMPARTMENT AND OPERABLE TO VARY THE FUEL OUTPUT OF SAID INJECTION PUMP, A CONTROL MEANS FOR CONTROLLING THE PRESSURE IN THE PRESSURE COMPARTMENT OF SAID PUMP DURING ENGINE IDLING OPERATION, HAVING A FIRST CONDUIT CONNECTED WITH SAID AIR INTAKE SLIGHTLY DOWNSTREAM OF THE CLOSURE POINT OF SAID THROTTLE VALVE, SAID CONDUIT TERMINATING AT THE INLET OF AN AIR PUMP, SECOND AND THIRD CONDUITS BRANCHING FROM SAID FIRST CONDUIT, SAID SECOND CONDUIT TERMINATING IN A CONNECTION WITH SAID FUEL INJECTION PUMP, SAID THIRD CONDUIT TERMINATING IN A PRESSURE-RE-
Claim 2
Dependent Claim
139 words
IN AN APPARATUS FOR SUPPLYING FUEL TO AN INTERNAL COMBUSTION ENGINE HAVING AN AIR INTAKE SYSTEM, A THROTTLE VALVE IN SAID SYSTEM AND ADJUSTABLE TO REGULATE AIR FLOW THROUGH SAID SYSTEM, AND A VARIABLE DELIVERY ENGINE-DRIVEN FUEL INJECTION PUMP, PROVIDED WITH A PRESSURE COMPARTMENT AND WITH A PRESSURE-RESPONSIVE CONTROL DEVICE IN SAID COMPARTMENT AND OPERABLE TO VARY THE FUEL OUTPUT OF SAID INJECTION PUMP, A CONTROL MEANS FOR CONTROLLING THE PRESSURE IN THE PRESSURE COMPARTMENT OF SAID PUMP DURING ENGINE IDLING OPERATION, HAVING A FIRST CONDUIT CONNECTED WITH SAID AIR INTAKE SLIGHTLY DOWNSTREAM OF THE CLOSURE POINT OF SAID THROTTLE VALVE, SAID CONDUIT TERMINATING AT THE INLET OF AN AIR PUMP, SECOND AND THIRD CONDUITS BRANCHING FROM SAID FIRST CONDUIT, SAID SECOND CONDUIT TERMINATING IN A CONNECTION WITH SAID FUEL INJECTION PUMP, SAID THIRD CONDUIT TERMINATING IN A PRESSURE-RE-
References Cited (Backward Citations)
US2943616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |