US4013049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manifold apparatus for multi-cylinder motorcycle engines
Assignee: Individual
•
Filing: 1975-08-28
•
Granted: 1977-03-22
•
Expires: 1995-08-28
Abstract
Abstract Intake manifold apparatus having a plurality of upwardly extending headers connected to a single distribution manifold for use with a downdraft carburetor on a multi-cylinder motorcycle engine.
Inventors
- 👤 Michael H. Dilgard
- 👤 James W. Meir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:21
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/10; F02M35/10091; F02M35/10131; F02B; F02B61/00; F02B61/02; F02B75/00; F02B75/16; F02B75/18; F02B75/20; F02M35/1015; F02M35/10196; F02M35/104; F02M35/112; F02B2075/1804; F02B2075/1816; F02M35/16; F02M35/162; Y; Y10; Y10S; Y10S261/00; Y10S261/36
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
151 words
In an internal combustion engine having a cylinder block and a carburetor spaced apart from the cylinder block, manifold apparatus extending between the carburetor and the cylinder block, comprising, in combination: flange means, including a flange to which the carburetor is secured, and an aperture extending through the flange through which fuel and air flows from the carburetor; chamber means disposed beneath the flange means for receiving the fuel and air flow from the carburetor; header means connected to and communicating with the chamber means and extending to the cylinder block and including a first portion connected to the chamber means and extending generally horizontally outwardly from the chamber means, a second portion connected to the first portion and extending generally vertically from the first portion to above the flange, and a third portion connected to the second portion and extending generally horizontally above the flange and to the cylinder block.
Claim 2
Dependent Claim
151 words
In an internal combustion engine having a cylinder block and a carburetor spaced apart from the cylinder block, manifold apparatus extending between the carburetor and the cylinder block, comprising, in combination: flange means, including a flange to which the carburetor is secured, and an aperture extending through the flange through which fuel and air flows from the carburetor; chamber means disposed beneath the flange means for receiving the fuel and air flow from the carburetor; header means connected to and communicating with the chamber means and extending to the cylinder block and including a first portion connected to the chamber means and extending generally horizontally outwardly from the chamber means, a second portion connected to the first portion and extending generally vertically from the first portion to above the flange, and a third portion connected to the second portion and extending generally horizontally above the flange and to the cylinder block.
Claim 3
Dependent Claim
20 words
The apparatus of claim 1 in which the flange means includes means for securing the carburetor to the manifold apparatus.
Claim 4
Dependent Claim
24 words
The apparatus of claim 1 in which the third portion of the header means includes means for securing the manifold apparatus to the engine.
Claim 5
Dependent Claim
24 words
The apparatus of claim 1 in which the chamber means is generally cylindrical in configuration and has a longitudinal axis which is horizontally disposed.
Claim 6
Dependent Claim
33 words
The apparatus of claim 4 in which the header means is of a generally circular cross section and the diameter of the chamber means is larger than the diameter of the header means.
Claim 7
Dependent Claim
22 words
The apparatus of claim 5 in which the flange means further includes a connector portion between the flange and the chamber means.
Claim 8
Dependent Claim
37 words
The apparatus of claim 1 in which the header means includes a plurality of headers extending from the chamber means to the cylinder block, and each header includes the respective first portion, second portion, and third portion.
Claim 9
Dependent Claim
38 words
The apparatus of claim 7 in which the flange means includes a connector portion between the flange and the chamber means extends generally horizontally beneath the connector portion of the flange means and parallel to the cylinder block.
Claim 10
Dependent Claim
32 words
The apparatus of claim 8 in which the chamber means is generally cylindrical in configuration and the diameter of the chamber means is larger than the diameter of each of the headers.
References Cited (Backward Citations)
US1802024A
Cited
US2272418A
Cited
FR1132643A
Cited
FR1286368A
Cited
US3141449A
Cited
US3931799A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-21 | 1980-09-20 | 1981-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-21 | 1984-09-20 | 1985-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-21 | 1988-09-20 | 1989-03-22 | $7700.00 | Window Closed / Lapsed |