US3340955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Logging apparatus with peak amplitude measurement of a selected half-cycle
Assignee: Schlumberger Technology Corp
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Filing: 1959-08-03
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Granted: 1967-09-12
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Expires: 1979-08-03
Abstract
No abstract record available.
Inventors
- 👤 Lee H Gollwitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:22
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/40; G01V1/44; G01V1/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
IN AN ACOUSTIC LOGGING SYSTEM FOR USE IN A BOREHOLE: MEANS FOR DEVELOPING AN ELECTRICAL SIGNAL IN RESPONSE TO ACOUSTIC ENERGY IN THE BOREHOLE, SAID ELECTRICAL SIGNAL HAVING A SERIES OF ALTERNATIONS; FIRST CIRCUIT MEANS SELECTIVELY OPERABLE FOR PRODUCING A FLOW OF OUTPUT CURRENT IN RESPONSE TO SAID ELECTRICAL SIGNAL; GATING MEANS COUPLED TO RECEIVE SAID ELECTRICAL SIGNAL AND RESPONSIVE TO A GIVEN CHARACTERISTIC THEREOF FOR SELECTIVELY OPERATING SAID FIRST CIRCUIT MEANS DURING A PRESELECTED HALF-CYCLE ONLY OF SAID ELECTRICAL SIGNAL; AND SECOND CIRCUIT MEANS RESPONSIVE TO THE OUTPUT CURRENT OF SAID FIRST CIRCUIT MEANS FOR PROVIDING A SIGNAL WHICH IS REPRESENTATIVE OF THE PEAK AMPLITUDE OF SAID PRESELECTED HALF-CYCLE OF SAID ELECTRICAL SIGNAL.
Claim 2
Dependent Claim
114 words
IN AN ACOUSTIC LOGGING SYSTEM FOR USE IN A BOREHOLE: MEANS FOR DEVELOPING AN ELECTRICAL SIGNAL IN RESPONSE TO ACOUSTIC ENERGY IN THE BOREHOLE, SAID ELECTRICAL SIGNAL HAVING A SERIES OF ALTERNATIONS; FIRST CIRCUIT MEANS SELECTIVELY OPERABLE FOR PRODUCING A FLOW OF OUTPUT CURRENT IN RESPONSE TO SAID ELECTRICAL SIGNAL; GATING MEANS COUPLED TO RECEIVE SAID ELECTRICAL SIGNAL AND RESPONSIVE TO A GIVEN CHARACTERISTIC THEREOF FOR SELECTIVELY OPERATING SAID FIRST CIRCUIT MEANS DURING A PRESELECTED HALF-CYCLE ONLY OF SAID ELECTRICAL SIGNAL; AND SECOND CIRCUIT MEANS RESPONSIVE TO THE OUTPUT CURRENT OF SAID FIRST CIRCUIT MEANS FOR PROVIDING A SIGNAL WHICH IS REPRESENTATIVE OF THE PEAK AMPLITUDE OF SAID PRESELECTED HALF-CYCLE OF SAID ELECTRICAL SIGNAL.
References Cited (Backward Citations)
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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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |