Patent US3380553A successfully refreshed from Google Patents.
US3380553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust muffler with expansion chambers in inlet cover dome
Assignee: Individual
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Filing: 1966-04-11
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Granted: 1968-04-30
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Expires: 1986-04-11
Abstract
No abstract record available.
Inventors
- 👤 Stephen J Gibel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:19
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/16; F01N1/00; F01N1/08; F01N1/082
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
IN A MUFFLER ADAPTED TO SILENCE THE EXHAUST FLUID PRESSURE OF A MACHINE, A TUBULAR OPEN ENDED BODY, A PAIR OF COVER MEMBERS ADAPTED TO ENGAGE AND CLOSE THE ENDS OF SAID BODY TO FORM A SILENCING CHAMBER, ONE OF SAID COVER MEMBERS HAVING A FLUID INLET PASSAGEWAY THROUGH WHICH EXHAUST FLUID IS ADAPTED TO ENTER THE MUFFLER, SAID ONE COVER MEMBER FURTHER HAVING AN EXPANSION CHAMBER IN COMMUNICATION WITH SAID INLET PASSAGEWAY, A DIFFUSER MEMBER HAVING A PLURALITY OF OPENINGS THEREIN
Claim 2
Dependent Claim
82 words
IN A MUFFLER ADAPTED TO SILENCE THE EXHAUST FLUID PRESSURE OF A MACHINE, A TUBULAR OPEN ENDED BODY, A PAIR OF COVER MEMBERS ADAPTED TO ENGAGE AND CLOSE THE ENDS OF SAID BODY TO FORM A SILENCING CHAMBER, ONE OF SAID COVER MEMBERS HAVING A FLUID INLET PASSAGEWAY THROUGH WHICH EXHAUST FLUID IS ADAPTED TO ENTER THE MUFFLER, SAID ONE COVER MEMBER FURTHER HAVING AN EXPANSION CHAMBER IN COMMUNICATION WITH SAID INLET PASSAGEWAY, A DIFFUSER MEMBER HAVING A PLURALITY OF OPENINGS THEREIN
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) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |