US3561408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High ram manifold
Assignee: Individual
•
Filing: 1970-02-12
•
Granted: 1971-02-09
•
Expires: 1990-02-12
Abstract
Abstract An intake manifold to be arranged with and adapted to conduct fuel and air between carburetor means and the inlet ports of an internal combustion engine including a plurality of compound curved tunnels with inlet ends in axial alignment with the discharge of the carburetor means and outlet ends corresponding in cross-sectional configuration and in registering open communication with related inlet ports, the inlet ends and the major longitudinal extent of the tunnels related thereto being Dshaped in cross section with their flat sides at and extending along the outside curvature of the tunnels, the minor portion of the tunnels adjacent their outlet ends joining smoothly with the D-shaped portions thereof and a plenum chamber between the inlet ends of the tunnels and the carburetor means communicating with the carburetor means and the tunnels to balance the pressures therebetween.
Inventors
- 👤 Philip Weiand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:38
CPC Classifications
F; F02; F02M; F02M13/00; F02M13/02; F02M13/021; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/22; F02M1/00; F02F; F02F2200/00; F02F2200/06; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/4304; F02M2700/4311; F02M2700/4392
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
164 words
An elongate manifold having opposite ends, opposite sides and a top and a bottom, said manifold having fuel-air inlet means at its top to communicate with carburetion means, a plurality of elongate fuel-air conducting tunnels with upwardly disposed upper inlet ends below and communicating with the carburetion means and longitudinally space, substantially laterally disposed lower outlet ends to oppose and communicate with spaced air-fuel inlet ports of a related, reciprocating internal combustion engine, said tunnels being curved downwardly and laterally outwardly as they extend from their upper to their lower ends and being Dshaped in cross section, the flat side of each D-shaped tunnel occurring at and along the outside curvature of the tunnel on planes normal to the central radial plane of the tunnel occurring on the line of outside curvature of said tunnel whereby the flat side of the tunnel defines a flat, curved sliding surface to direct and bend a moving column of fuel and air in the tunnel freely therethrough.
Claim 2
Dependent Claim
164 words
An elongate manifold having opposite ends, opposite sides and a top and a bottom, said manifold having fuel-air inlet means at its top to communicate with carburetion means, a plurality of elongate fuel-air conducting tunnels with upwardly disposed upper inlet ends below and communicating with the carburetion means and longitudinally space, substantially laterally disposed lower outlet ends to oppose and communicate with spaced air-fuel inlet ports of a related, reciprocating internal combustion engine, said tunnels being curved downwardly and laterally outwardly as they extend from their upper to their lower ends and being Dshaped in cross section, the flat side of each D-shaped tunnel occurring at and along the outside curvature of the tunnel on planes normal to the central radial plane of the tunnel occurring on the line of outside curvature of said tunnel whereby the flat side of the tunnel defines a flat, curved sliding surface to direct and bend a moving column of fuel and air in the tunnel freely therethrough.
Claim 3
Dependent Claim
33 words
A manifold as set forth in claim 1 wherein said tunnels are of compound curvature and extend longitudinally and laterally downwardly and outwardly as they extend from their upper to their lower ends.
Claim 4
Dependent Claim
80 words
A manifold as set forth in claim 1 wherein the upper open ends and the upper major longitudinal extent of the tunnels are D-shaped in cross section, the lower, outer open ends of the tunnels are substantially circular in cross section to register with substantially circular ports in an engine related thereto and are formed throughout their lower minor longitudinal extent to fare smoothly between and to join the lower part of the D-shaped portions and their outer open ends.
Claim 5
Dependent Claim
33 words
A structure as set forth in claim 3 wherein said tunnels are of compound curvature and extend longitudinally and laterally downwardly and outwardly as they extend from their upper to their lower ends.
Claim 6
Dependent Claim
79 words
A manifold as set forth in claim 1 wherein the upper open ends and the upper major longitudinal extent of the tunnels are D-shaped in cross section, the lower outer open ends of the tunnels are polygonal in cross section to register with substantially polygonal ports in an engine related thereto and are formed throughout their lower minor longitudinal extent to fare smootHly between and to join the lower part of the D-shaped portions and their outer open ends.
Claim 7
Dependent Claim
35 words
A manifold as set forth in claim 5 wherein a side of said lower minor portions establishes a continuation of said slide surfaces and terminates at one of the sides of the polygonal open ends.
Claim 8
Dependent Claim
33 words
A manifold as set forth in claim 5 wherein said tunnels are of compound curvature and extend longitudinally and laterally downwardly and outwardly as they extend from their upper to their lower ends.
Claim 9
Dependent Claim
59 words
A manifold as set forth in claim 5 wherein a side of said lower minor portions establishes a continuation of said slide surfaces and terminates at one of the sides of the polygonal open ends, said tunnels being of compound curvature and extending longitudinally and laterally downwardly and outwardly as they extend from their upper to their lower ends.
Claim 10
Dependent Claim
81 words
A structure as set forth in claim 1 wherein said carburetion means includes an elongate log overlying and communicating with the upper open ends of the tunnels, longitudinally spaced carburetors mounted on and communicating with the log, said log defining a plenum chamber for fuel and air between and communicating with the carburetors and the tunnels, said upper open ends of the tunnels being arranged to occur at opposite sides of the log from the carburetors and in axial alignment therewith.
Claim 11
Dependent Claim
88 words
A structure as set forth in claim 1 wherein said carburetion means includes an elongate log overlying and communicating with the upper open ends of the tunnels, a pair of longitudinally spaced carburetors mounted on and communicating with the log, said log defining a plenum chamber for fuel and air between and communicating with the carburetors and the tunnels, said upper open ends of the tunnels being two longitudinally spaced groups arranged to occur at opposite sides of the log from the carburetors and in axial alignment therewith.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |