US3182974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carburetor
Assignee: Individual
•
Filing: 1963-09-05
•
Granted: 1965-05-11
•
Expires: 1983-09-05
Abstract
No abstract record available.
Inventors
- 👤 Hill Raymond Roger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:09
CPC Classifications
F; F02; F02M; F02M11/00; F02M11/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
IN A CARBURETOR COMPRISING A CARBURETOR BODY DEFINING AT LEAST IN PART A VACUUM CHAMBER ADAPTED TO COMMUNICATE WITH THE INTAKE MANIFOLD OF AN INTERNAL COMBUSTION ENGINE AND A FUEL MIXING CHAMBER HAVING WALL PORTIONS THEREOF AND ADJUSTABLE VALVE MEANS FOR PROVIDING VARIABLE COMMUNICATION BETWEEN SAID VACUUM CHAMBER AND SAID MIXING CHAMBER, THE IMPROVED MEANS FOR INTRODUCING FUEL AND AIR INTO SAID MIXING CHAMBER WITH COMPRISES: (A) A VALVE DOOR FORMING A FIRST WALL PORTION OF SAID MIXING CHAMBER WITH SAID DOOR HAVING AN EDGE ADJACENT TO A SECOND WALL PORTION OF SAID MIXING CHAMBER AND DEFINING WITH SAID SECOND WALL PORTION AN ENTRANCE OPENING INTO SAID MIXING CHAMBER, MEANS MOUNTING SAID VALVE DOOR FOR MOVEMENT FROM A CLOSED POSITION TOWARD AN OPEN POSITION TO MOVE SAID DOOR EDGE AWAY FROM SAID SECOND WALL PORTION IN RESPONSE TO INCREASED VACUUM IN SAID MIXING CHAMBER, (B) SPRING MEANS BIASING SAID DOOR TOWARD A CLOSED POSITION, (C) A FUEL SUPPLY MEANS MOUNTED ON SAID BODY ADJACENT TO SAID MIXING CHAMBER AND ADAPTED TO BE CONNECTED TO A SOURCE OF FUEL UNDER PRESSURE, AND
Claim 2
Dependent Claim
181 words
IN A CARBURETOR COMPRISING A CARBURETOR BODY DEFINING AT LEAST IN PART A VACUUM CHAMBER ADAPTED TO COMMUNICATE WITH THE INTAKE MANIFOLD OF AN INTERNAL COMBUSTION ENGINE AND A FUEL MIXING CHAMBER HAVING WALL PORTIONS THEREOF AND ADJUSTABLE VALVE MEANS FOR PROVIDING VARIABLE COMMUNICATION BETWEEN SAID VACUUM CHAMBER AND SAID MIXING CHAMBER, THE IMPROVED MEANS FOR INTRODUCING FUEL AND AIR INTO SAID MIXING CHAMBER WITH COMPRISES: (A) A VALVE DOOR FORMING A FIRST WALL PORTION OF SAID MIXING CHAMBER WITH SAID DOOR HAVING AN EDGE ADJACENT TO A SECOND WALL PORTION OF SAID MIXING CHAMBER AND DEFINING WITH SAID SECOND WALL PORTION AN ENTRANCE OPENING INTO SAID MIXING CHAMBER, MEANS MOUNTING SAID VALVE DOOR FOR MOVEMENT FROM A CLOSED POSITION TOWARD AN OPEN POSITION TO MOVE SAID DOOR EDGE AWAY FROM SAID SECOND WALL PORTION IN RESPONSE TO INCREASED VACUUM IN SAID MIXING CHAMBER, (B) SPRING MEANS BIASING SAID DOOR TOWARD A CLOSED POSITION, (C) A FUEL SUPPLY MEANS MOUNTED ON SAID BODY ADJACENT TO SAID MIXING CHAMBER AND ADAPTED TO BE CONNECTED TO A SOURCE OF FUEL UNDER PRESSURE, AND
References Cited (Backward Citations)
GB119180A
Cited
DE595128C
Cited
US1995587A
Cited
DE622705C
Cited
US2084489A
Cited
US2355267A
Cited
US2583406A
Cited
US2595721A
Cited
US2823019A
Cited
US2991056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-10 | 1968-11-09 | 1969-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-10 | 1972-11-09 | 1973-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-10 | 1976-11-09 | 1977-05-11 | $7700.00 | Window Closed / Lapsed |