Patent US3154174A successfully refreshed from Google Patents.
US3154174A
Expired / Lapsed
US
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Dual purpose muffler with valved by-pass means
Assignee: Individual
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Filing: 1962-11-30
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Granted: 1964-10-27
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Expires: 1982-11-30
Abstract
No abstract record available.
Inventors
- 👤 Alvin S Haining
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:27
CPC Classifications
F; F01; F01N; F01N1/00; F01N1/16; F01N1/166
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
IN A MUFFLER THE COMBINATION OF A TUBULAR CASING HAVING OPPOSITE END WALLS, A PLURALITY OF SPACED APART DISKS DIVIDING SAID CASING INTO A PLURALITY OF CHAMBERS, A TUBULAR CUT-OUT UNIT SUPPORTED BY SAID DISKS IN AXIAL ALIGNMENT WITH SAID CASING AND EXTENDING FROM SAID OPPOSITE END WALLS, EACH OF SAID DISKS HAVING A PLURALITY OF APERTURES, THE APERTURES OF EACH DISK DIFFERING IN DIAMETERS FROM THE DIAMETERS OF THE APERTURES OF ADJACENT DISKS, SAID TUBULAR CUT-OUT UNIT HAVING A PLURALITY OF APERTURES IN THE WALL THEREOF, SAID UNIT HAVING AN OUTLET PASSAGE IN THE WALL THEREOF FOR THE FLOW OF GASES INTO SAID CHAMBERS AND A VALVE MEMBER FOR CONTROLLING THE FLOW OF GASES THROUGH SAID OUTLET PASSAGE.
Claim 2
Dependent Claim
119 words
IN A MUFFLER THE COMBINATION OF A TUBULAR CASING HAVING OPPOSITE END WALLS, A PLURALITY OF SPACED APART DISKS DIVIDING SAID CASING INTO A PLURALITY OF CHAMBERS, A TUBULAR CUT-OUT UNIT SUPPORTED BY SAID DISKS IN AXIAL ALIGNMENT WITH SAID CASING AND EXTENDING FROM SAID OPPOSITE END WALLS, EACH OF SAID DISKS HAVING A PLURALITY OF APERTURES, THE APERTURES OF EACH DISK DIFFERING IN DIAMETERS FROM THE DIAMETERS OF THE APERTURES OF ADJACENT DISKS, SAID TUBULAR CUT-OUT UNIT HAVING A PLURALITY OF APERTURES IN THE WALL THEREOF, SAID UNIT HAVING AN OUTLET PASSAGE IN THE WALL THEREOF FOR THE FLOW OF GASES INTO SAID CHAMBERS AND A VALVE MEMBER FOR CONTROLLING THE FLOW OF GASES THROUGH SAID OUTLET PASSAGE.
References Cited (Backward Citations)
GB191100634A
Cited
US1004195A
Cited
US1447380A
Cited
US1860892A
Cited
US1859400A
Cited
US2157030A
Cited
US2382159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |