US3670844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine exhaust header construction
Assignee: TRIPLE A ACCESSORIES
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Filing: 1971-07-01
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Granted: 1972-06-20
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Expires: 1991-07-01
Abstract
Abstract An exhaust header assembly comprises; A. A MULTIPLICITY OF EXHAUST PIPES HAVING TERMINALS, B. A COLLECTOR TUBE HAVING AN ENTRANCE END RECEIVING SAID TERMINALS IN SIDE-BY-SIDE RELATION, C. SAID TERMINALS HAVING OUT-OF-ROUND SIDE WALLS RETAINED IN INTERENGAGEMENT TO BLOCK ESCAPE OF EXHAUST GAS THEREBETWEEN.
Inventors
- 👤 Addison E Penfold Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:05
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1805; F01N13/08; F16; F16L; F16L55/00; F16L55/02; F16L55/033; F01N2590/00; F01N2590/04; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87571
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
47 words
In an exhaust header assembly, the combination comprising a. a multiplicity of exhaust pipes having terminals, b. a collector tube having an entrance end receiving said terminals in side-by-side relation, c. said terminals having out-of-round side walls retained in interengagement to block escape of exhaust gas therebetween.
Claim 2
Dependent Claim
47 words
In an exhaust header assembly, the combination comprising a. a multiplicity of exhaust pipes having terminals, b. a collector tube having an entrance end receiving said terminals in side-by-side relation, c. said terminals having out-of-round side walls retained in interengagement to block escape of exhaust gas therebetween.
Claim 3
Dependent Claim
12 words
The combination of claim 1 wherein said interengaged side walls are flat.
Claim 4
Dependent Claim
34 words
The combination of claim 1 wherein four of said terminals are clustered in said collector tube, each terminal having two flat non-parallel side walls respectively engaging flat non-parallel side walls of two other terminals.
Claim 5
Dependent Claim
34 words
The combination of claim 1 wherein three of said terminals are clustered in said collector tube, each terminal having two flat non-parallel side walls respectively engaging flat non-parallel side walls of two other terminals.
Claim 6
Dependent Claim
16 words
The combination of claim 1 including releasable means urging said terminals endwise into said collector tube.
Claim 7
Dependent Claim
26 words
The combination of claim 5 wherein said last named means includes tension spring structure operatively connected between said tube and at least one of said pipes.
Claim 8
Dependent Claim
47 words
The combination of claim 2 wherein said collector tube has an axis and defines concave sockets opening toward said axis, the sockets closely receiving convex wall portions of said terminals, said terminal convex wall portions merging with said flat side walls between said sockets and said axis.
Claim 9
Dependent Claim
30 words
The combination of claim 1 wherein said collector tube has one-piece construction, with a bell portion receiving said terminals and an elongated tapered portion extending away from said bell portion.
Claim 10
Dependent Claim
77 words
For use in an exhaust header assembly including a collector tube having an entrance end to receive multiple exhaust pipe terminals in a cluster, the improvement comprising: a. elongated piping to pass exhaust gas from the engine to said tube, b. said piping having a terminal one side wall of which is flattened to engage the similarly flattened side of another elongated pipe terminal, thereby to block escape of exhaust gas between said interengaged flattened side walls.
Claim 11
Dependent Claim
77 words
For use in an exhaust header assembly including a collector tube having an entrance end to receive multiple exhaust pipe terminals in a cluster, the improvement comprising: a. elongated piping to pass exhaust gas from the engine to said tube, b. said piping having a terminal one side wall of which is flattened to engage the similarly flattened side of another elongated pipe terminal, thereby to block escape of exhaust gas between said interengaged flattened side walls.
Claim 12
Dependent Claim
26 words
The improved pipe of claim 9 wherein said piping has an axis and said terminal has two flat non-parallel side walls tapering away from the axis.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |