Patent EP0155110A2 successfully refreshed from Google Patents.
Patent US3335720A successfully refreshed from Google Patents.
US3335720A
Expired / Lapsed
US
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Valve for sound attenuating device
Assignee: Individual
•
Filing: 1965-06-02
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Granted: 1967-08-15
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Expires: 1985-06-02
Abstract
No abstract record available.
Inventors
- 👤 Jackson A Aileo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:49
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/16; A42B3/166; A61; A61F; A61F11/00; A61F11/06; A61F11/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
A SOUND ATTENUATING DEVICE COMPRISING: (A) AN EAR CUP ADAPTED TO RECEIVE AN EAR OF A WEARER AND HAVING AN APERTURE SPACED FROM THE RIM OF SAID CUP; (B) A VALVE MOVABLE BETWEEN A CLOSED POSITION WITHIN SAID APERTURE AND AN OPEN POSITION WHICH IS READILY TACTUALLY DISTINGUISHABLE FROM THE CLOSED POSITION, SAID VALVE INCLUDING A DRUM AND A FLANGE; (C) SAID DRUM IS FORMED FROM AN INNER AND AN OUTER CUP; (D) EACH OF SAID INNER AND OUTER CUPS INCLUDING A CYLINDRICAL WALL AND A DIAPHRAGM, ONE DIAPHRAGM BEING JOINED TO THE INNER END OF SAID HOLLOW CYLINDER OF SAID OUTER CUP AND THE OTHER DIAPHRAGM BEING JOINED TO THE OUTER END OF SID HOLLOW CYLINDER OF SAID INNER CUP; (E) SAID INNER CUP BEING TELSCOPED WITHIN SAID OUTER CUP AND SAID HOLLOW CYLINDERS OF SAID INNER AND OUTER CUPS BEING JOINED TOGETHER TO DEFINE AN ENCLOSED CHAMBER WITHIN SAID DRUM; AND (F) SAID FLANGE BEING JOINED TO THE OUTER END OF SAID OUTER CUP AND INCLUDING MEANS MOVABLY CONNECTING SAID VALVE TO SAID CUP IN ALL POSITIONS OF SAID VALVE.
Claim 2
Dependent Claim
182 words
A SOUND ATTENUATING DEVICE COMPRISING: (A) AN EAR CUP ADAPTED TO RECEIVE AN EAR OF A WEARER AND HAVING AN APERTURE SPACED FROM THE RIM OF SAID CUP; (B) A VALVE MOVABLE BETWEEN A CLOSED POSITION WITHIN SAID APERTURE AND AN OPEN POSITION WHICH IS READILY TACTUALLY DISTINGUISHABLE FROM THE CLOSED POSITION, SAID VALVE INCLUDING A DRUM AND A FLANGE; (C) SAID DRUM IS FORMED FROM AN INNER AND AN OUTER CUP; (D) EACH OF SAID INNER AND OUTER CUPS INCLUDING A CYLINDRICAL WALL AND A DIAPHRAGM, ONE DIAPHRAGM BEING JOINED TO THE INNER END OF SAID HOLLOW CYLINDER OF SAID OUTER CUP AND THE OTHER DIAPHRAGM BEING JOINED TO THE OUTER END OF SID HOLLOW CYLINDER OF SAID INNER CUP; (E) SAID INNER CUP BEING TELSCOPED WITHIN SAID OUTER CUP AND SAID HOLLOW CYLINDERS OF SAID INNER AND OUTER CUPS BEING JOINED TOGETHER TO DEFINE AN ENCLOSED CHAMBER WITHIN SAID DRUM; AND (F) SAID FLANGE BEING JOINED TO THE OUTER END OF SAID OUTER CUP AND INCLUDING MEANS MOVABLY CONNECTING SAID VALVE TO SAID CUP IN ALL POSITIONS OF SAID VALVE.
References Cited (Backward Citations)
US2844820A
Cited
US3178723A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |