Patent US3177649A successfully refreshed from Google Patents.
US3177649A
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Assignee: Alco Products Inc
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Filing: 1963-03-08
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Granted: 1965-04-13
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Expires: 1983-03-08
Abstract
No abstract record available.
Inventors
- 👤 Frederic C Tromel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:48
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1805; F01N13/1811; Y; Y10; Y10S; Y10S123/00; Y10S123/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
IN AN EXHAUST MANIFOLD INCLUDING A PLURALITY OF INTERCHANGEABLE COMPONENT SECTIONS ADAPTED TO RECEIVE THE EXHAUST GASES FROM THE CYLINDERS OF AN INTERNAL COMBUSTION ENGINE, A SECTION COMPRISING A MAIN CONDUIT PORTION; A NORMALLY RIGID BRANCH PIPE EXTENDING FROM EITHER SIDE OF AND INTEGRAL WITH SAID MAIN CONDUIT PORTION TO THE OPPOSITE SIDE OF SAID CONDUIT PORTION IN CROSSOVER RELATION, SAID BRANCH PIPES INCLUDING A STRAIGHT PORTION AND AN ARCUATE PORTION; A SEALING FLANGE ON THE END OF EACH BRANCH PIPE; AND CLAMPING MEANS FOR SAID FLANGE, THE LENGTH, CURVATURE AND CROSSOVER ARRANGEMENT OF SAID BRANCH PIPES BEING SUCH THAT SAID PIPES ARE RELATIVELY FLEXIBLE TO COMPENSATE FOR EXPANSION OF THE ASSEMBLY AND REDUCE STRESS CONCENTRATION AT THE JOINTS BETWEEN THE MAIN CONDUIT AND THE BRANCH PIPES.
Claim 2
Dependent Claim
127 words
IN AN EXHAUST MANIFOLD INCLUDING A PLURALITY OF INTERCHANGEABLE COMPONENT SECTIONS ADAPTED TO RECEIVE THE EXHAUST GASES FROM THE CYLINDERS OF AN INTERNAL COMBUSTION ENGINE, A SECTION COMPRISING A MAIN CONDUIT PORTION; A NORMALLY RIGID BRANCH PIPE EXTENDING FROM EITHER SIDE OF AND INTEGRAL WITH SAID MAIN CONDUIT PORTION TO THE OPPOSITE SIDE OF SAID CONDUIT PORTION IN CROSSOVER RELATION, SAID BRANCH PIPES INCLUDING A STRAIGHT PORTION AND AN ARCUATE PORTION; A SEALING FLANGE ON THE END OF EACH BRANCH PIPE; AND CLAMPING MEANS FOR SAID FLANGE, THE LENGTH, CURVATURE AND CROSSOVER ARRANGEMENT OF SAID BRANCH PIPES BEING SUCH THAT SAID PIPES ARE RELATIVELY FLEXIBLE TO COMPENSATE FOR EXPANSION OF THE ASSEMBLY AND REDUCE STRESS CONCENTRATION AT THE JOINTS BETWEEN THE MAIN CONDUIT AND THE BRANCH PIPES.
References Cited (Backward Citations)
US1525647A
Cited
GB392852A
Cited
US2209325A
Cited
US2653836A
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US2681817A
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US2660031A
Cited
US3043094A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |