Patent US4295458A successfully refreshed from Google Patents.
US4295458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for increasing the uniformity of the air-fuel mixture in internal combustion engines
Assignee: Individual
•
Filing: 1979-06-14
•
Granted: 1981-10-20
•
Expires: 1999-06-14
Abstract
Abstract A device for increasing the uniformity of the air-fuel mixture in internal combustion engines, comprises a hollow truncated cone having a collar about its major opening, the collar being disposed between the carburetor flange and the manifold flange of the internal combustion engine. The cone extends into the manifold inlet and is perforated and has a member therein secured to its internal wall, that directs the mixture from the carburetor against the internal wall of the truncated cone.
Inventors
- 👤 Albert Pellerin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:13
CPC Classifications
F; F02; F02M; F02M29/00; F02M29/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
126 words
In a device for internal combustion engines for increasing the uniformity of the air-fuel mixture, comprising a frusto-conical element formed by a perforated lateral wall having a collar at its major opening, the collar being adapted to fit between the carburetor flange and the manifold flange of an internal combustion engine whereas the apex of the truncated cone extends into the manifold inlet of said engine; the improvement comprising a perforated truncated cone disposed inside said element and having its large base secured to the small base of said element and its small base extending in the direction of the large base of said element but terminating a substantial distance short of said large base of said element, both ends of said truncated cone being open.
Claim 2
Dependent Claim
126 words
In a device for internal combustion engines for increasing the uniformity of the air-fuel mixture, comprising a frusto-conical element formed by a perforated lateral wall having a collar at its major opening, the collar being adapted to fit between the carburetor flange and the manifold flange of an internal combustion engine whereas the apex of the truncated cone extends into the manifold inlet of said engine; the improvement comprising a perforated truncated cone disposed inside said element and having its large base secured to the small base of said element and its small base extending in the direction of the large base of said element but terminating a substantial distance short of said large base of said element, both ends of said truncated cone being open.
Claim 3
Dependent Claim
21 words
A device according to claim 1, in which the perforations of said truncated cone are larger than those of said element.
Claim 4
Dependent Claim
33 words
A device according to claim 1, in which said truncated cone extends between one-third and one-half of the distance from said small end of said element toward said large end of said element.
Claim 5
Dependent Claim
32 words
A device according to claim 1, in which said collar extends radially outwardly and is joined directly to the frusto-conical element at the point where the frusto-conical element obtains its greatest diameter.
References Cited (Backward Citations)
US1118919A
Cited
US1132351A
Cited
US1509718A
Cited
GB385080A
Cited
GB412782A
Cited
FR775641A
Cited
GB479892A
Cited
DE1014788B
Cited
FR95017E
Cited
GB1239823A
Cited
GB1337828A
Cited
FR2290580A1
Cited
FR2287589A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-10-19 | 1985-04-20 | 1985-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-19 | 1989-04-20 | 1989-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-19 | 1993-04-20 | 1993-10-20 | $7700.00 | Window Closed / Lapsed |