Patent US3167152A successfully refreshed from Google Patents.
US3167152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound attenuating gas conduit and resonators therefor
Assignee: Meritor Inc
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Filing: 1964-01-16
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Granted: 1965-01-26
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Expires: 1984-01-16
Abstract
No abstract record available.
Inventors
- 👤 Ludlow Edmund
- 👤 Benjamin H Irwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:01
CPC Classifications
F; F01; F01N; F01N1/00; F01N1/02; F01N2490/00; F01N2490/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A SHEET-METAL SOUND ATTENUATING RESONATOR, COMPRISING A SHEET-METAL MEMBER FORMED FROM A UNITARY PIECE OF SHEET-METAL HAVING FIRST WALL AREAS DISPOSED IN SPACED RELATIONSHIP TO EACH OTHER TO FORM A RESONATOR VOLUME, SECOND WALL AREAS BORDERING SAID FIRST WALL AREAS AND ENCLOSING SAID VOLUME, ELONGATED THIRD WALL AREAS EXTENDING WITHIN THE EXTENT OF SAID SECOND WALL AREAS AND DISPOSED IN SPACED RELATIONSHIP TO EACH OTHER TO FORM AN ELONGATED RESONATOR THROAT, SAID THROAT BEING OPEN WITHIN AND WITHOUT THE EXTENT OF SAID VOLUME FOR OPERATIVELY INTERCONNECTING SAID VOLUME TO A SOUND ENERGY SOURCE FOR ATTENUATING THE NOISE LEVEL THEREOF, SAID VOLUME BEING COMPLETELY ENCLOSED EXCEPT FOR IS COMMUNICATION WITH SAID THROAT.
Claim 2
Dependent Claim
111 words
A SHEET-METAL SOUND ATTENUATING RESONATOR, COMPRISING A SHEET-METAL MEMBER FORMED FROM A UNITARY PIECE OF SHEET-METAL HAVING FIRST WALL AREAS DISPOSED IN SPACED RELATIONSHIP TO EACH OTHER TO FORM A RESONATOR VOLUME, SECOND WALL AREAS BORDERING SAID FIRST WALL AREAS AND ENCLOSING SAID VOLUME, ELONGATED THIRD WALL AREAS EXTENDING WITHIN THE EXTENT OF SAID SECOND WALL AREAS AND DISPOSED IN SPACED RELATIONSHIP TO EACH OTHER TO FORM AN ELONGATED RESONATOR THROAT, SAID THROAT BEING OPEN WITHIN AND WITHOUT THE EXTENT OF SAID VOLUME FOR OPERATIVELY INTERCONNECTING SAID VOLUME TO A SOUND ENERGY SOURCE FOR ATTENUATING THE NOISE LEVEL THEREOF, SAID VOLUME BEING COMPLETELY ENCLOSED EXCEPT FOR IS COMMUNICATION WITH SAID THROAT.
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) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |