US3195041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bore hole logging apparatus including means for reproducing a multiplexed log record
Assignee: Sperry Sun Inc
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Filing: 1962-03-05
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Granted: 1965-07-13
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Expires: 1982-03-05
Abstract
No abstract record available.
Inventors
- 👤 Fred M Mayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:43
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/18; G01V3/20; G01V3/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
APPARATUS FOR THE LOGGING OF BORE HOLES COMPRISING MEANS FOR PROVIDING AN EXCITING CURRENT TO THE EARTH IN THE VICINITY OF THE APPARATUS, MEANS FOR PROVIDING A FIRST POTENTIAL RESPONSIVE TO SAID EXCITING CURRENT, MEANS PROVIDING A SECOND POTENTIAL RESPONSIVE TO SAID EXCITING CURRENT, MEANS PROVIDING A THIRD POTENTIAL WHICH VARIES CYCLICALLY AND HAS, DURING EACH CYCLE OF VARIATION, THE SAME PREDETERMINED WAVE FORM, MEANS SENSITIVE TO A PREDETERMINED RELATIONSHIP DURING EACH CYCLE OF VARIATION BETWEEN SAID THIRD AND FIRST POTENTIALS AND BEING SAID THIRD AND SECOND POTENTIALS, MEANS CONTROLLED BY SAID SENSITIVE MEANS FOR RECORDING THE PHASE RELATIONSHIP OF SAID PREDETERMINED RELATIONSHIPS OCCURRING IN EACH CYCLE OF VARIATION TO A CYCLE OF VARIATION OF SAID THIRD POTENTIAL IN THE FORM OF A PULSE TIME MODULATED RECORD, AND MEANS FOR CONNECTING SAID FIRST AND SECOND POTENTIALS SEQUENTIALLY TO SAID SENSITIVE MEANS WHEREBY SAID RECORDING MEANS SEQUENTIALLY RECORDS EACH OF SAID PREDETERMINED RELATIONSHIPS.
Claim 2
Dependent Claim
152 words
APPARATUS FOR THE LOGGING OF BORE HOLES COMPRISING MEANS FOR PROVIDING AN EXCITING CURRENT TO THE EARTH IN THE VICINITY OF THE APPARATUS, MEANS FOR PROVIDING A FIRST POTENTIAL RESPONSIVE TO SAID EXCITING CURRENT, MEANS PROVIDING A SECOND POTENTIAL RESPONSIVE TO SAID EXCITING CURRENT, MEANS PROVIDING A THIRD POTENTIAL WHICH VARIES CYCLICALLY AND HAS, DURING EACH CYCLE OF VARIATION, THE SAME PREDETERMINED WAVE FORM, MEANS SENSITIVE TO A PREDETERMINED RELATIONSHIP DURING EACH CYCLE OF VARIATION BETWEEN SAID THIRD AND FIRST POTENTIALS AND BEING SAID THIRD AND SECOND POTENTIALS, MEANS CONTROLLED BY SAID SENSITIVE MEANS FOR RECORDING THE PHASE RELATIONSHIP OF SAID PREDETERMINED RELATIONSHIPS OCCURRING IN EACH CYCLE OF VARIATION TO A CYCLE OF VARIATION OF SAID THIRD POTENTIAL IN THE FORM OF A PULSE TIME MODULATED RECORD, AND MEANS FOR CONNECTING SAID FIRST AND SECOND POTENTIALS SEQUENTIALLY TO SAID SENSITIVE MEANS WHEREBY SAID RECORDING MEANS SEQUENTIALLY RECORDS EACH OF SAID PREDETERMINED RELATIONSHIPS.
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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |