US3089684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carburetor
Assignee: ACF Industries Inc
•
Filing: 1960-06-03
•
Granted: 1963-05-14
•
Expires: 1980-06-03
Abstract
No abstract record available.
Inventors
- 👤 Robert J Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:52
CPC Classifications
F; F02; F02M; F02M1/00; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/4304; F02M2700/4311
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
IN A CARBURETOR FOR AN INTERNAL COMBUSTION ENGINE, TWO MIXTURE CONDUITS, THROTTLE VALVES IN SAID CONDUITS, A FUEL BOWL, TWO MAIN FUEL PASSAGES LEADING FROM SAID BOWL TO THEIR RESPECTIVE CONDUITS, EACH PASSAGE HAVING A FUEL METERING ORIFICE THEREIN, A STEP-UP DEVICE COMPRISING A PISTON OPERABLE RESPONSIVE TO VARIATIONS IN PRESSURE POSTERIOR TO SAID THROTTLE VALVES, A BRACKET SECURED TO SAID PISTON AND HAVING SLOTS IN OPPOSITE SIDES THEREOF, METERING RODS MOUNTED IN SAID SLOTS AND ENGAGED IN SAID ORIFICES, AND A TENSION SPRING INTERCONNECTING SAID RODS.
Claim 2
Dependent Claim
87 words
IN A CARBURETOR FOR AN INTERNAL COMBUSTION ENGINE, TWO MIXTURE CONDUITS, THROTTLE VALVES IN SAID CONDUITS, A FUEL BOWL, TWO MAIN FUEL PASSAGES LEADING FROM SAID BOWL TO THEIR RESPECTIVE CONDUITS, EACH PASSAGE HAVING A FUEL METERING ORIFICE THEREIN, A STEP-UP DEVICE COMPRISING A PISTON OPERABLE RESPONSIVE TO VARIATIONS IN PRESSURE POSTERIOR TO SAID THROTTLE VALVES, A BRACKET SECURED TO SAID PISTON AND HAVING SLOTS IN OPPOSITE SIDES THEREOF, METERING RODS MOUNTED IN SAID SLOTS AND ENGAGED IN SAID ORIFICES, AND A TENSION SPRING INTERCONNECTING SAID RODS.
References Cited (Backward Citations)
US2652237A
Cited
US2711885A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |