US3273666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-passage muffler producing colliding fluid streams
Assignee: —
•
Filing: —
•
Granted: 1966-09-20
•
Expires: 1983-09-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:36
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1861; F01N1/00; F01N1/08; F01N1/083; F01N13/1866; F01N13/1888; F01N2450/00; F01N2450/24; F01N2470/00; F01N2470/28; F01N2490/00; F01N2490/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A MUFFLER COMPRISING A HOUSING, AN INLET IN SAID HOUSING, AN OUTLET IN SAID HOUSING, A PLURALITY OF BAFFLES IN SAID HOUSING EXTENDING TRANSVERSELY TO THE PATH OF FLOW BETWEEN SAID INLET AND SAID OUTLET, A RELATIVELY LARGE OPENING MEANS ASSOCIATED WITH EACH OF SAID BAFFLES, EACH OF SAID RELATIVELY LARGE OPENING MEANS BEING OUT OF ALIGNMENT WITH THE RELATIVELY LARGE OPENING MEANS ASSOCIATED WITH OTHER OF SAID BAFFLES TO THEREBY CAUSE PORTIONS OF THE FLOW ENTERING SAID HOUSING FROM SAID INLET TO FOLLOW A SINUOUS PATH THROUGH SAID RELATIVELY LARGE OPENING MEANS, A PLURALITY OF RELATIVELY SMALL OPENING MEANS IN EACH OF SAID BAFFLES TO PERMIT A PORTION OF THE FLOW TO PASS THERETHROUGH WHICH DOES NOT PASS THROUGH THE RELATIVELY LARGE OPENING MEANS OF EACH BAFFLES WHEREBY THE FLOW EMANATING FROM SAID RELATIVELY LARGE OPENING MEANS OF A BAFFLE IS CAUSED TO MIX WITH THE FLOW EMANATING FROM THE
Claim 2
Dependent Claim
151 words
A MUFFLER COMPRISING A HOUSING, AN INLET IN SAID HOUSING, AN OUTLET IN SAID HOUSING, A PLURALITY OF BAFFLES IN SAID HOUSING EXTENDING TRANSVERSELY TO THE PATH OF FLOW BETWEEN SAID INLET AND SAID OUTLET, A RELATIVELY LARGE OPENING MEANS ASSOCIATED WITH EACH OF SAID BAFFLES, EACH OF SAID RELATIVELY LARGE OPENING MEANS BEING OUT OF ALIGNMENT WITH THE RELATIVELY LARGE OPENING MEANS ASSOCIATED WITH OTHER OF SAID BAFFLES TO THEREBY CAUSE PORTIONS OF THE FLOW ENTERING SAID HOUSING FROM SAID INLET TO FOLLOW A SINUOUS PATH THROUGH SAID RELATIVELY LARGE OPENING MEANS, A PLURALITY OF RELATIVELY SMALL OPENING MEANS IN EACH OF SAID BAFFLES TO PERMIT A PORTION OF THE FLOW TO PASS THERETHROUGH WHICH DOES NOT PASS THROUGH THE RELATIVELY LARGE OPENING MEANS OF EACH BAFFLES WHEREBY THE FLOW EMANATING FROM SAID RELATIVELY LARGE OPENING MEANS OF A BAFFLE IS CAUSED TO MIX WITH THE FLOW EMANATING FROM THE
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |