US3184973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mud sample pump
Assignee: Atlantic Richfield Co
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Filing: 1961-11-29
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Granted: 1965-05-25
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Expires: 1981-11-29
Abstract
No abstract record available.
Inventors
- 👤 John S Bradley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:10
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/20; G01N1/2035
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
214 words
A SYSTEM FOR OBTAINING FLUID SAMPLES FROM RESERVOIR MEANS HAVING DRILLING FLUID FLOWING THERETHROUGH, SAID DRILLING FLIID CARRYING PARTICLE-FROM SOLIDS AND BEING USED IN EARTH BOREHOLE DRILLING, WHICH SYSTEM COMPRISES IN COMBINATION A PUMP MEANS HAVING A CHAMBER INTO WHICH DRILLING FLUID IS DRAWN DURING THE INTAKE STROKE OF SAID PUMP MEANS AND OUT OF WHICH DRILLING FLUID IS FORCED DURING THE EXHAUST STROKE OF SAID PUMP MEANS, FIRST PASSAGE MEANS FLUIDLY COMMUNICATING WITH SAID CHAMBER IN SAID PUMP MEANS AND A SAMPLE RECEIVING MEANS, ONE-WAY VALVE MEANS IN SAID FIRST PASSAGE ADAPTED TO REMAIN OPEN DURING SAID EXHAUST STROKE OF SAID PUMP MEANS, SECOND PASSAGE MEANS CONNECTING SAID RESERVOIR MEANS WITH SAID CHAMBER IN SAID PUMP MEANS, SAID SECOND PASSAGE MEANS BEING ADAPTED TO PERMIT THE PASSAGE OF DRILLING FLUID THERETHROUGH DURING BOTH THE INTAKE AND EXHAUST STROKES OF SAID PUMP MEANS, AND STRAINING SURFACE MEANS IN SAID RESERVIOR MEANS ADAPTED TO BLOCK THE PASSAGE OF AT LEAST PART OF SAID PARTICLE-FORM SOLIDS IN SAID DRILLING FLUID, SAID STRAINING SURFACE MEANS BEING FORMED BY A ROW OF PARALLEL BARS ALIGNED WITH THE DIRECTION OF FLOW OF SAID DRILLING FLUID, SAID BARS BEING SPACED SO THAT SAID DRILLING FLUID MAY FLOW THEREBETWEEN SAID TRAVERSING THE OPENING IN THE END OF SAID SECOND PASSAGE MEANS.
Claim 2
Independent Claim
214 words
A SYSTEM FOR OBTAINING FLUID SAMPLES FROM RESERVOIR MEANS HAVING DRILLING FLUID FLOWING THERETHROUGH, SAID DRILLING FLIID CARRYING PARTICLE-FROM SOLIDS AND BEING USED IN EARTH BOREHOLE DRILLING, WHICH SYSTEM COMPRISES IN COMBINATION A PUMP MEANS HAVING A CHAMBER INTO WHICH DRILLING FLUID IS DRAWN DURING THE INTAKE STROKE OF SAID PUMP MEANS AND OUT OF WHICH DRILLING FLUID IS FORCED DURING THE EXHAUST STROKE OF SAID PUMP MEANS, FIRST PASSAGE MEANS FLUIDLY COMMUNICATING WITH SAID CHAMBER IN SAID PUMP MEANS AND A SAMPLE RECEIVING MEANS, ONE-WAY VALVE MEANS IN SAID FIRST PASSAGE ADAPTED TO REMAIN OPEN DURING SAID EXHAUST STROKE OF SAID PUMP MEANS, SECOND PASSAGE MEANS CONNECTING SAID RESERVOIR MEANS WITH SAID CHAMBER IN SAID PUMP MEANS, SAID SECOND PASSAGE MEANS BEING ADAPTED TO PERMIT THE PASSAGE OF DRILLING FLUID THERETHROUGH DURING BOTH THE INTAKE AND EXHAUST STROKES OF SAID PUMP MEANS, AND STRAINING SURFACE MEANS IN SAID RESERVIOR MEANS ADAPTED TO BLOCK THE PASSAGE OF AT LEAST PART OF SAID PARTICLE-FORM SOLIDS IN SAID DRILLING FLUID, SAID STRAINING SURFACE MEANS BEING FORMED BY A ROW OF PARALLEL BARS ALIGNED WITH THE DIRECTION OF FLOW OF SAID DRILLING FLUID, SAID BARS BEING SPACED SO THAT SAID DRILLING FLUID MAY FLOW THEREBETWEEN SAID TRAVERSING THE OPENING IN THE END OF SAID SECOND PASSAGE MEANS.
References Cited (Backward Citations)
US849916A
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US1628657A
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US2277714A
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US2260419A
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US2362750A
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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) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |