US4425898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gaseous fuel-air mixture device
Assignee: PATALIDIS CLAUDE A
•
Filing: 1981-11-09
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Granted: 1984-01-17
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Expires: 2001-11-09
Abstract
Abstract A gaseous fuel-air mixture device for an internal combustion engine having an intake for a fuel-air mixture. A chamber for mixing gaseous fuel and air is provided above the intake. The gaseous fuel is uniformly injected into the mixture chamber from an aperture in the chamber wall. The quantity of air mixed with the gaseous fuel in the mixture chamber is controlled by adjusting the height of a control plate disposed above the chamber.
Inventors
- 👤 Kerry L. McLean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:47
CPC Classifications
F; F02; F02M; F02M13/00; F02M13/08; F02M21/00; F02M21/02; F02M21/04; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/30
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
160 words
A gaseous fuel-air mixer for an internal combustion engine having an intake for a fuel-air mixture, said intake being a liquid fuel conventional carburetor inlet and said gaseous fuel-air mixer comprising a tubular member mounted at said carburetor inlet, said tubular member surrounding said inlet and having an open end through which air is admitted, means for supplying a gaseous fuel to a mixing chamber defined within said tubular member, and a generally flat plate, said plate being axially adjustable along the carburetor inlet axis and disposed across the open end of said tubular member defining said mixing chamber for adjusting the proportion of air admitted to said mixing chamber, wherein said gaseous fuel is supplied to said mixing chamber through an aperture in said tubular member, said tubular member has a pair of parallel circularly cylindrical walls disposed concentrically for forming therebetween an annular chamber, and said aperture is a circular slot in the innermost of said cylindrical walls.
Claim 2
Dependent Claim
160 words
A gaseous fuel-air mixer for an internal combustion engine having an intake for a fuel-air mixture, said intake being a liquid fuel conventional carburetor inlet and said gaseous fuel-air mixer comprising a tubular member mounted at said carburetor inlet, said tubular member surrounding said inlet and having an open end through which air is admitted, means for supplying a gaseous fuel to a mixing chamber defined within said tubular member, and a generally flat plate, said plate being axially adjustable along the carburetor inlet axis and disposed across the open end of said tubular member defining said mixing chamber for adjusting the proportion of air admitted to said mixing chamber, wherein said gaseous fuel is supplied to said mixing chamber through an aperture in said tubular member, said tubular member has a pair of parallel circularly cylindrical walls disposed concentrically for forming therebetween an annular chamber, and said aperture is a circular slot in the innermost of said cylindrical walls.
Claim 3
Dependent Claim
50 words
The mixer of claim 1 wherein the outermost of said cylindrical walls is slightly higher than the innermost of said cylindrical walls and has an inwardly directed edge flange, and said circular slot is determined by a space between said flange and the upper edge of said innermost cylindrical wall.
Claim 4
Dependent Claim
21 words
The mixer of claim 1 wherein at least one spacer of a constant width is affixed between said concentric cylindrical walls.
Claim 5
Dependent Claim
35 words
The mixer of claim 1 wherein said means for supplying gaseous fuel to said mixing chamber is a conduit leading into said annular chamber for connecting said annular chamber to a supply of gaseous fuel.
Claim 6
Dependent Claim
15 words
The mixer of claim 1 wherein said adjustable plate has a relatively narrow curved flange.
Claim 7
Dependent Claim
21 words
The mixer of claim 1 wherein said adjustable plate is adjustably mounted on a rod disposed concentrically to said tubular member.
Claim 8
Dependent Claim
16 words
The mixer of claim 1 wherein said tubular member is disposed within an air filter housing.
References Cited (Backward Citations)
US797278A
Cited
US2420562A
Cited
US2939775A
Cited
US3646924A
Cited
US4351300A
Cited
US4335697A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-01-16 | 1987-07-18 | 1988-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-16 | 1991-07-18 | 1992-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-16 | 1995-07-18 | 1996-01-17 | $7700.00 | Window Closed / Lapsed |