US3213415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure equalizing arrangement for acoustic logging
Assignee: Schlumberger Well Surveying Corp
•
Filing: 1962-08-27
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Granted: 1965-10-19
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Expires: 1982-08-27
Abstract
No abstract record available.
Inventors
- 👤 Edward I Moser
- 👤 Gerald S Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:10
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/40; G01V1/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
AN ELECTROACOUSTIC TRANSDUCER UNIT FOR OPERATING IN A MEDIUM UNDER VARYING PRESSURES COMPRISING A SUPPORTING MEMBER, AN ELONGATED GENERALLY CYLINDRICAL ELECTROACOUSTIC TRANSDUCING ELEMENT SURROUNDING AND SPACED FROM SAID MEMBER TO DEFINE A CAVITY THEREBETWEEN, MEANS SEALING SAID CAVITY AT ONE END OF SAID TRANSDUCING ELEMENT, ELONGATED BELLOWS MEANS CONNECTED AT ONE END THEREOF IN FLUID-TIGHT ENGAGEMENT WITH THE OTHER END OF SID ELEMENT AND AT THE OTHER END THEREOF IN FIXED, FLUID-TIGHT ENGAGEMENT WITH SAID SUPPORTING MEMBER, THE INTERIOR OF SAID BELLOWS MEANS BEING IN FLUID COMMUNICATION WITH SAID CAVITY AND THE EXTERIOR OF SAID BELLOWS MEANS BEING EXPOSED TO THE PRESSURE IN SAID MEDIUM, AND A LIQUID COMPLETELY FILLING SAID CAVITY ND INTERIOR OF SAID BELLOW MEANS.
Claim 2
Dependent Claim
118 words
AN ELECTROACOUSTIC TRANSDUCER UNIT FOR OPERATING IN A MEDIUM UNDER VARYING PRESSURES COMPRISING A SUPPORTING MEMBER, AN ELONGATED GENERALLY CYLINDRICAL ELECTROACOUSTIC TRANSDUCING ELEMENT SURROUNDING AND SPACED FROM SAID MEMBER TO DEFINE A CAVITY THEREBETWEEN, MEANS SEALING SAID CAVITY AT ONE END OF SAID TRANSDUCING ELEMENT, ELONGATED BELLOWS MEANS CONNECTED AT ONE END THEREOF IN FLUID-TIGHT ENGAGEMENT WITH THE OTHER END OF SID ELEMENT AND AT THE OTHER END THEREOF IN FIXED, FLUID-TIGHT ENGAGEMENT WITH SAID SUPPORTING MEMBER, THE INTERIOR OF SAID BELLOWS MEANS BEING IN FLUID COMMUNICATION WITH SAID CAVITY AND THE EXTERIOR OF SAID BELLOWS MEANS BEING EXPOSED TO THE PRESSURE IN SAID MEDIUM, AND A LIQUID COMPLETELY FILLING SAID CAVITY ND INTERIOR OF SAID BELLOW MEANS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |