Patent US4729096A successfully refreshed from Google Patents.
US3100449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injection pump
Assignee: Borg Warner Corp
•
Filing: 1959-02-04
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Granted: 1963-08-13
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Expires: 1979-02-04
Abstract
No abstract record available.
Inventors
- 👤 Einar S Dahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:23
CPC Classifications
F; F02; F02M; F02M69/00; F02M69/02; F02M41/00; F02M41/08; F02M41/10; F02M41/12; F02M41/123; F02M59/00; F02M59/20; F02M59/22; F02M69/30; F02M69/34; F04; F04B; F04B49/00; F02M2700/00; F02M2700/13; F02M2700/1317; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85978; Y10T137/86115; Y10T137/86123
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
IN A FUEL INJECTION PUMP FOR AN INTERNAL COMBUSTION ENGINE, THE COMBINATION OF A CASING FORMED WITH A LONGITUDINAL BORE AND A PLURALITY OF FUEL DELIVERY PORTS OPENING INTO SAID BORE, A COMBINED PUMPING AND DISTRIBUTING PLUNGER DISPOSED WITHIN SAID BORE, FILL VALVE MEANS FOR SUPPLYING FUEL TO SAID BORE, MEANS FOR RECIPROCATING SAID PLUNGER TO COMPRESS FUEL WITHIN SAID BORE AND ROTATING SAID PLUNGER TO DISTRIBUTE FUEL THROUGH SAID PORTS, METERING MEANS COMPRISING A SPRING LOADED PISTON IN DIRECT COMMUNICATION WITH SAID BORE AND ADAPTED TO BE DISPLACED A LIMITED AMOUNT BY FLUID PRESSURE DEVELOPED IN SAID BORE WITH EACH STROKE OF SAID PLUNGER AND INCLUDING CONTROL MEANS FOR LIMITING THE STROKE OF SAID PISTON IN ACCORDANCE WITH ENGINE DEMAND, WHEREBY METERED CHARGES OF FUEL ARE FORMED AND DISTRIBUTED BY SAID PLUNGER THROUGH EACH OF SAID PORTS.
Claim 2
Dependent Claim
138 words
IN A FUEL INJECTION PUMP FOR AN INTERNAL COMBUSTION ENGINE, THE COMBINATION OF A CASING FORMED WITH A LONGITUDINAL BORE AND A PLURALITY OF FUEL DELIVERY PORTS OPENING INTO SAID BORE, A COMBINED PUMPING AND DISTRIBUTING PLUNGER DISPOSED WITHIN SAID BORE, FILL VALVE MEANS FOR SUPPLYING FUEL TO SAID BORE, MEANS FOR RECIPROCATING SAID PLUNGER TO COMPRESS FUEL WITHIN SAID BORE AND ROTATING SAID PLUNGER TO DISTRIBUTE FUEL THROUGH SAID PORTS, METERING MEANS COMPRISING A SPRING LOADED PISTON IN DIRECT COMMUNICATION WITH SAID BORE AND ADAPTED TO BE DISPLACED A LIMITED AMOUNT BY FLUID PRESSURE DEVELOPED IN SAID BORE WITH EACH STROKE OF SAID PLUNGER AND INCLUDING CONTROL MEANS FOR LIMITING THE STROKE OF SAID PISTON IN ACCORDANCE WITH ENGINE DEMAND, WHEREBY METERED CHARGES OF FUEL ARE FORMED AND DISTRIBUTED BY SAID PLUNGER THROUGH EACH OF SAID PORTS.
References Cited (Backward Citations)
US204747A
Cited
US1076915A
Cited
US1135476A
Cited
US1116494A
Cited
US1799704A
Cited
US2055578A
Cited
US1993369A
Cited
US2102117A
Cited
US2237347A
Cited
US2267479A
Cited
US2318128A
Cited
US2297942A
Cited
US2301435A
Cited
US2593316A
Cited
US2603159A
Cited
US2619907A
Cited
US2543828A
Cited
US2711697A
Cited
US2794397A
Cited
US2728351A
Cited
US2780173A
Cited
US2810375A
Cited
US2739643A
Cited
US2833218A
Cited
US2810376A
Cited
US2918008A
Cited
US2839999A
Cited
US2922369A
Cited
US2851026A
Cited
US2846995A
Cited
US2928352A
Cited
US3000369A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |