US3093208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite coated muffler and method of making the same
Assignee: Eagle Picher Co
•
Filing: 1960-11-17
•
Granted: 1963-06-11
•
Expires: 1980-11-17
Abstract
No abstract record available.
Inventors
- 👤 Eugene E Howe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:27
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1838; F01N13/16; F01N2450/00; F01N2450/22; F01N2470/00; F01N2470/02; F01N2510/00; F01N2510/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49885
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
AN EXHAUST MUFFLER COMPRISING, BAFFLE MEANS FORMING CLOSED CAVITIES HAVING A THROUGH-TUBULAR-MULTIPLE-PATH PASSAGE EXTENDING THERETHROUGH WITH SMALL HOLES IN SAID PASSAGE AT INTERVALE, THEREBY TO BREAK SOUND WAVES WHICH FOLLOW DIFFERENT PATHS AND MEET AGAIN OUT OF PHASE BEFORE LEAVING THE MUFFLER, A SHELL FORMING A HOUSING TO ENCLOSE SAID BAFFLE MEANS, EACH OF SAID BAFFLE MEANS AND SAID SHELL HAVING A THIN LAYER OF GLASS FUSED TO THE SURFACE THEREOF EXCEPT FOR A PLURALITY OF SPACED POINTS ON AN EXTERNAL SURFACE OF SAID BAFFLE MEANS AND A CORRESPONDING PLURALITY OF POINTS ON THE EXTERNAL SURFACE OF SAID SHELL, AND A
Claim 2
Dependent Claim
101 words
AN EXHAUST MUFFLER COMPRISING, BAFFLE MEANS FORMING CLOSED CAVITIES HAVING A THROUGH-TUBULAR-MULTIPLE-PATH PASSAGE EXTENDING THERETHROUGH WITH SMALL HOLES IN SAID PASSAGE AT INTERVALE, THEREBY TO BREAK SOUND WAVES WHICH FOLLOW DIFFERENT PATHS AND MEET AGAIN OUT OF PHASE BEFORE LEAVING THE MUFFLER, A SHELL FORMING A HOUSING TO ENCLOSE SAID BAFFLE MEANS, EACH OF SAID BAFFLE MEANS AND SAID SHELL HAVING A THIN LAYER OF GLASS FUSED TO THE SURFACE THEREOF EXCEPT FOR A PLURALITY OF SPACED POINTS ON AN EXTERNAL SURFACE OF SAID BAFFLE MEANS AND A CORRESPONDING PLURALITY OF POINTS ON THE EXTERNAL SURFACE OF SAID SHELL, AND A
References Cited (Backward Citations)
US744495A
Cited
US2322488A
Cited
US2354532A
Cited
US2372712A
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US2394383A
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US2761525A
Cited
US2825421A
Cited
US2884693A
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US2868950A
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US3036655A
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US2975072A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |