Patent US3123128A successfully refreshed from Google Patents.
US3123128A
Expired / Lapsed
US
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Fuel metering system
Assignee: —
•
Filing: —
•
Granted: 1964-03-03
•
Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:23
CPC Classifications
F; F02; F02C; F02C9/00; F02C9/26; F02C9/38; F02C7/00; F02C7/22; F02C7/32; F02C9/16; F02C9/32; F02K; F02K3/00; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2579; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/7788; Y10T137/8593; Y10T137/85978; Y10T137/85986; Y10T137/86002; Y10T137/87917; Y10T137/87981
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A SYSTEM FOR SUPPLYING FUEL COMPRISING, IN COMBINATION, A SOURCE OF FUEL UNDER RELATIVELY LOW PRESSURE, METERING VALVE HAVING TWO CORRELATED SETS OF METERING PORTS AND MEANS FOR SIMULTANEOUSLY VARYING THE AREAS OF BOTH SAID SETS, A RELATIVELY HIGH PRESSURE PUMP WITH AN INLET CONNECTED TO THE SOURCE THROUGH ONE SET OF SAID PORTS AND AN OUTLET CONNECTED TO A DELIVERY LINE AND CONNECTED TO THE SOURCE THROUGH THE OTHER SET OF SAID PORTS, AND HEAD REGULATING MEANS MAINTAINING CONTROLLED CONSTANT PRESSURE DROPS ACROSS BOTH SETS OF SAID PORTS.
Claim 2
Independent Claim
89 words
A SYSTEM FOR SUPPLYING FUEL COMPRISING, IN COMBINATION, A SOURCE OF FUEL UNDER RELATIVELY LOW PRESSURE, METERING VALVE HAVING TWO CORRELATED SETS OF METERING PORTS AND MEANS FOR SIMULTANEOUSLY VARYING THE AREAS OF BOTH SAID SETS, A RELATIVELY HIGH PRESSURE PUMP WITH AN INLET CONNECTED TO THE SOURCE THROUGH ONE SET OF SAID PORTS AND AN OUTLET CONNECTED TO A DELIVERY LINE AND CONNECTED TO THE SOURCE THROUGH THE OTHER SET OF SAID PORTS, AND HEAD REGULATING MEANS MAINTAINING CONTROLLED CONSTANT PRESSURE DROPS ACROSS BOTH SETS OF SAID PORTS.
References Cited (Backward Citations)
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Cited
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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) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |