Patent US3148677A successfully refreshed from Google Patents.
US3148677A
Expired / Lapsed
US
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Brachial transducer
Assignee: Dynamics Corp of America
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Filing: 1963-02-07
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Granted: 1964-09-15
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Expires: 1983-02-07
Abstract
No abstract record available.
Inventors
- 👤 Smith Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:01
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/021; A61B5/022; A61B5/02208; A61B2562/00; A61B2562/02; A61B2562/0247
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A TRANSDUCER FOR DETECTING KOROTKOW SOUNDS IN THE BRACHIAL ARTERY COMPRISING A BASE, A PIEZOELECTRIC DEVICE MOUNTED ON SAID BASE, A SLEEVE MEMBER OPEN AT THE UPPER END THEREOF MOUNTED ON SAID BASE, A FIRST FLEXIBLE DIAPHRAGM MOUNTED BETWEEN SAID BASE AND SAID SLEEVE MEMBER, A RIGID PLATE SECURED TO SAID FIRST DIAPHRAGM, AT LEAST ONE ORIFICE THROUGH SAID DIAPHRAGM AND SAID PLATE, A SECOND FLEXIBLE DIAPHRAGM OVER THE OPEN END OF SAID SLEEVE MEMBER, AND COUPLING MEANS EXTENDING BETWEEN SAID RIGID PLATE AND SAID PIEZOELECTRIC DEVICE FOR FLEXING SAID DEVICE IN RESPONSE TO SAID KOROTKOW SOUNDS.
Claim 2
Dependent Claim
97 words
A TRANSDUCER FOR DETECTING KOROTKOW SOUNDS IN THE BRACHIAL ARTERY COMPRISING A BASE, A PIEZOELECTRIC DEVICE MOUNTED ON SAID BASE, A SLEEVE MEMBER OPEN AT THE UPPER END THEREOF MOUNTED ON SAID BASE, A FIRST FLEXIBLE DIAPHRAGM MOUNTED BETWEEN SAID BASE AND SAID SLEEVE MEMBER, A RIGID PLATE SECURED TO SAID FIRST DIAPHRAGM, AT LEAST ONE ORIFICE THROUGH SAID DIAPHRAGM AND SAID PLATE, A SECOND FLEXIBLE DIAPHRAGM OVER THE OPEN END OF SAID SLEEVE MEMBER, AND COUPLING MEANS EXTENDING BETWEEN SAID RIGID PLATE AND SAID PIEZOELECTRIC DEVICE FOR FLEXING SAID DEVICE IN RESPONSE TO SAID KOROTKOW SOUNDS.
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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |