US3214587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioactivity well logging apparatus utilizing a scintillation detector
Assignee: Dresser Industries Inc
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Filing: 1961-05-12
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Granted: 1965-10-26
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Expires: 1981-05-12
Abstract
No abstract record available.
Inventors
- 👤 Monaghan Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:18
CPC Classifications
G; G01; G01V; G01V5/00; G01V5/04; G01V5/08; G01V5/10; G01V5/101; G01T; G01T1/00; G01T1/16; G01T1/20; G01T1/208; G01V5/104
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
APPARATUS FOR INVESTIGATING THE NATURE OF SUBSURFACE SUBSTANCES, SAID APPARATUS COMPRISING A SCINTILLATION MEANS EMITTING IN RESPONSE TO INCIDENT RADIATIONS FUNCTIONALLY RELATED LIGHT PULSES HAVING DECAY CHARACTERISTICS FUNCTIONALLY RELATED TO THE CHARACTER OF SAID INCIDENT RADIATIONS, MEANS OPTICALLY CONNECTED TO SAID SCINTILLATION MEANS AND PROVIDING A FIRST ELECTRICAL SIGNAL COMPOSED OF PULSES HAVIN WIDTHS FUNCTIONALLY RELATED TO SAID DECAY CHARACTERISTICS OF SAID LIGHT PULSES, SORTING MEANS RECEIVING SAID FIRST SIGNAL AND PRODUCING IN RESPONSE THEREOT A SECOND ELECTRICAL SIGNAL COMPOSED OF ELECTRICAL PULSES FUNCTIONALLY RELATED TO THOSE OF SAID PULSE COMPOSING SAID FIRST SIGNAL WHICH HAVE WIDTHS GREATER THAN A PRE-DETERMINED PULSE WIDTH, SAID SORTING MEANS SIMULTANEOUSLY PRODUCING WITH
Claim 2
Dependent Claim
109 words
APPARATUS FOR INVESTIGATING THE NATURE OF SUBSURFACE SUBSTANCES, SAID APPARATUS COMPRISING A SCINTILLATION MEANS EMITTING IN RESPONSE TO INCIDENT RADIATIONS FUNCTIONALLY RELATED LIGHT PULSES HAVING DECAY CHARACTERISTICS FUNCTIONALLY RELATED TO THE CHARACTER OF SAID INCIDENT RADIATIONS, MEANS OPTICALLY CONNECTED TO SAID SCINTILLATION MEANS AND PROVIDING A FIRST ELECTRICAL SIGNAL COMPOSED OF PULSES HAVIN WIDTHS FUNCTIONALLY RELATED TO SAID DECAY CHARACTERISTICS OF SAID LIGHT PULSES, SORTING MEANS RECEIVING SAID FIRST SIGNAL AND PRODUCING IN RESPONSE THEREOT A SECOND ELECTRICAL SIGNAL COMPOSED OF ELECTRICAL PULSES FUNCTIONALLY RELATED TO THOSE OF SAID PULSE COMPOSING SAID FIRST SIGNAL WHICH HAVE WIDTHS GREATER THAN A PRE-DETERMINED PULSE WIDTH, SAID SORTING MEANS SIMULTANEOUSLY PRODUCING WITH
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |