US3353628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retroverted flow muffler with longitudinal partitions
Assignee: Walker Manufacturing Co
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Filing: 1965-03-05
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Granted: 1967-11-21
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Expires: 1985-03-05
Abstract
No abstract record available.
Inventors
- 👤 James R Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:21
CPC Classifications
F; F01; F01N; F01N1/00; F01N1/08; F01N1/084; F01N1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A TRIFLOW MUFFLER COMPRISING AN ELONGATED TUBULAR HOUSING HAVING REDUCED ENDS FORMING INLET AND OUTLET BUSHINGS, THREE LONGITUDINAL PARTITIONS INSIDE SAID HOUSING RADIATING FROM A COMMON LONGITUDINAL AXIS EXTENDING LENGTHWISE OF THE HOUSING, SAID PARTITIONS DEFINING AN INLET PASSAGE, A RETURN FLOW PASSAGE, AND AN OUTLET PASSAGE ALL EXTENDING LENGTHWISE OF THE HOUSING, PARTITIONS MEANS AT EACH END OF THE LONGITUDINAL PARTITIONS EXTENDING TRANSVERSELY ACROSS THE HOUSING AND CLOSING THE ENDS OF THE OUTLET AND RETURN FLOW PASSAGES AT THE INLET END OF THE MUFFLER AND THE ENDS OF THE INLET AND RETURN FLOW PASSAGES AT THE OUTLET END OF THE MUFFLER, AND OPENING MEANS ADJACENT THE OUTLET END IN THE COMMON PARTITIONS FOR THE INLET AND RETURN FLOW PASSAGES AND ADJACENT THE INLET END IN THE COMMON PARTITION FOR THE OUTLET AND RETURN FLOW PASSAGES TO PROVIDE FOR CROSS OVER FLOW OF GASES FROM ONE PASSAGE TO THE NEXT.
Claim 2
Dependent Claim
150 words
A TRIFLOW MUFFLER COMPRISING AN ELONGATED TUBULAR HOUSING HAVING REDUCED ENDS FORMING INLET AND OUTLET BUSHINGS, THREE LONGITUDINAL PARTITIONS INSIDE SAID HOUSING RADIATING FROM A COMMON LONGITUDINAL AXIS EXTENDING LENGTHWISE OF THE HOUSING, SAID PARTITIONS DEFINING AN INLET PASSAGE, A RETURN FLOW PASSAGE, AND AN OUTLET PASSAGE ALL EXTENDING LENGTHWISE OF THE HOUSING, PARTITIONS MEANS AT EACH END OF THE LONGITUDINAL PARTITIONS EXTENDING TRANSVERSELY ACROSS THE HOUSING AND CLOSING THE ENDS OF THE OUTLET AND RETURN FLOW PASSAGES AT THE INLET END OF THE MUFFLER AND THE ENDS OF THE INLET AND RETURN FLOW PASSAGES AT THE OUTLET END OF THE MUFFLER, AND OPENING MEANS ADJACENT THE OUTLET END IN THE COMMON PARTITIONS FOR THE INLET AND RETURN FLOW PASSAGES AND ADJACENT THE INLET END IN THE COMMON PARTITION FOR THE OUTLET AND RETURN FLOW PASSAGES TO PROVIDE FOR CROSS OVER FLOW OF GASES FROM ONE PASSAGE TO THE NEXT.
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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |