Patent US2862130A successfully refreshed from Google Patents.
Patent US3329412A successfully refreshed from Google Patents.
US3329412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carburettors
Assignee: Individual
•
Filing: 1964-11-05
•
Granted: 1967-07-04
•
Expires: 1984-11-05
Abstract
No abstract record available.
Inventors
- 👤 Knappett Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:03
CPC Classifications
F; F02; F02M; F02M9/00; F02M9/08; F02M9/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A CARBURETTOR COMPRISING AN ELONGATED OUTER SLEEVE DEFINING A MIXING CHAMBER, AN OPENING FOR AIR IN SAID SLEEVE, AN INNER STEM COEXTENSIVE WITH AT LEAST A PORTION OF SAID SLEEVE IN THE DIRECTION OF ITS LONGITUDINAL AXIS, A PASSAGEWAY IN SAID STEM HAVING AN OPENING FOR FUEL UNMIXED WITH AIR, BOTH OF SAID OPENINGS LEADING DIRECTLY INTO SAID MIXING CHAMBER, AND AN ADJUSTABLE THROTTLE COMPRISING INTEGRALLY FORMED OUTER AND INNER SLEEVE MEMBERS EMBRACING WITH A SLIDING FIT SAID OUTER SLEEVE AND SAID STEM, RESPECTIVELY, SAID SLEEVE MEMBERS BEING CONCENTRIC AND ANNULARLY SPACED WITH RESPECT TO EACH OTHER, SAID OUTER AND INNER SLEEVE MEMBERS HAVING FIRST AND SECOND TRANSFER OPENINGS COOPERATING WITH SAID AIR AND FUEL OPENINGS, RESPECTIVELY, FOR CONTINUOUSLY OPENING AND CLOSING THE SAME SUBSTANTIALLY SIMULTANEOUSLY IN RESPONSE TO THE SLIDING MOVEMENT OF SAID THROTTLE.
Claim 2
Dependent Claim
135 words
A CARBURETTOR COMPRISING AN ELONGATED OUTER SLEEVE DEFINING A MIXING CHAMBER, AN OPENING FOR AIR IN SAID SLEEVE, AN INNER STEM COEXTENSIVE WITH AT LEAST A PORTION OF SAID SLEEVE IN THE DIRECTION OF ITS LONGITUDINAL AXIS, A PASSAGEWAY IN SAID STEM HAVING AN OPENING FOR FUEL UNMIXED WITH AIR, BOTH OF SAID OPENINGS LEADING DIRECTLY INTO SAID MIXING CHAMBER, AND AN ADJUSTABLE THROTTLE COMPRISING INTEGRALLY FORMED OUTER AND INNER SLEEVE MEMBERS EMBRACING WITH A SLIDING FIT SAID OUTER SLEEVE AND SAID STEM, RESPECTIVELY, SAID SLEEVE MEMBERS BEING CONCENTRIC AND ANNULARLY SPACED WITH RESPECT TO EACH OTHER, SAID OUTER AND INNER SLEEVE MEMBERS HAVING FIRST AND SECOND TRANSFER OPENINGS COOPERATING WITH SAID AIR AND FUEL OPENINGS, RESPECTIVELY, FOR CONTINUOUSLY OPENING AND CLOSING THE SAME SUBSTANTIALLY SIMULTANEOUSLY IN RESPONSE TO THE SLIDING MOVEMENT OF SAID THROTTLE.
References Cited (Backward Citations)
US999686A
Cited
US1325689A
Cited
US1230101A
Cited
US1998784A
Cited
US2022957A
Cited
US3132191A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |