US3233698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Muffler with one-piece outer housing
Assignee: Walker Manufacturing Co
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Filing: 1960-11-28
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Granted: 1966-02-08
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Expires: 1980-11-28
Abstract
No abstract record available.
Inventors
- 👤 Walter H Powers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:56
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1838; F01N1/00; F01N1/003; F01N1/006; F01N13/08; F01N13/1833; F01N2310/00; F01N2310/02; F01N2450/00; F01N2450/22; F01N2470/00; F01N2470/18; F01N2470/20; F01N2470/24; F01N2490/00; F01N2490/12; F01N2490/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A MUFFLER COMPRISING AN OUTER CASING HAVING A CENTRAL PORTION OF ENLARGED DIAMETER AND INTEGRAL END PORTIONS OF REDUCED DIAMETER, THE DIAMETER OF THE INTEGRAL END PORTIONS BEING UNEQUAL WITHONE END PORTION HAVING A RELATIVELY LARGE DIAMETER AND THE OTHER END PORTION HAVING A RELATIVELY SMALL DIAMETER, A TUBULAR MEMBER FIXED WITHIN SAID OUTER CASING AND CONNECTING SAID INTEGRAL END PORTIONS, ONE END OF SAID TUBULAR MEMBER HAVING A REDUCED DIAMETER APPROXIMATELY EQUAL TO THE DIAMETER OF THE SMALLER OF SAID INTEGRAL END PORTIONS, A SHOULDER PORTION CONNECTING SAID ONE END OF REDUCED DIAMETER TO SAID TUBULAR MEMBER, SAID ONE END OF REDUCED DIAMETER BEING ENTIRELY RECEIVED IN THE SMALLER OF SAID INTEGRAL END PORTIONS, SAID SHOULDER BEING LOCATED IN ABUTTING ENGAGEMENT WITH SAID CASING, THE OTHER END OF SAID TUBULAR MEMBER HAVING AN ENLARGED DIAMETER APPROXIMATELY EQUAL TO THE DIAMETER OF THE LARGER OF THE INTEGRAL END PORTIONS, AND SAID OTHER END BEING RECEIVED AND SUPPORTED IN THE LARGER OF THE INTEGRAL END PORTIONS.
Claim 2
Dependent Claim
165 words
A MUFFLER COMPRISING AN OUTER CASING HAVING A CENTRAL PORTION OF ENLARGED DIAMETER AND INTEGRAL END PORTIONS OF REDUCED DIAMETER, THE DIAMETER OF THE INTEGRAL END PORTIONS BEING UNEQUAL WITHONE END PORTION HAVING A RELATIVELY LARGE DIAMETER AND THE OTHER END PORTION HAVING A RELATIVELY SMALL DIAMETER, A TUBULAR MEMBER FIXED WITHIN SAID OUTER CASING AND CONNECTING SAID INTEGRAL END PORTIONS, ONE END OF SAID TUBULAR MEMBER HAVING A REDUCED DIAMETER APPROXIMATELY EQUAL TO THE DIAMETER OF THE SMALLER OF SAID INTEGRAL END PORTIONS, A SHOULDER PORTION CONNECTING SAID ONE END OF REDUCED DIAMETER TO SAID TUBULAR MEMBER, SAID ONE END OF REDUCED DIAMETER BEING ENTIRELY RECEIVED IN THE SMALLER OF SAID INTEGRAL END PORTIONS, SAID SHOULDER BEING LOCATED IN ABUTTING ENGAGEMENT WITH SAID CASING, THE OTHER END OF SAID TUBULAR MEMBER HAVING AN ENLARGED DIAMETER APPROXIMATELY EQUAL TO THE DIAMETER OF THE LARGER OF THE INTEGRAL END PORTIONS, AND SAID OTHER END BEING RECEIVED AND SUPPORTED IN THE LARGER OF THE INTEGRAL END PORTIONS.
References Cited (Backward Citations)
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US1638309A
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US1685302A
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US2251369A
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US2449756A
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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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |