Patent US3095930A successfully refreshed from Google Patents.
US3095930A
Expired / Lapsed
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Fluid samplers
Assignee: Schlumberger Well Surveying Corp
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Filing: 1959-04-27
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Granted: 1963-07-02
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Expires: 1979-04-27
Abstract
No abstract record available.
Inventors
- 👤 Iii James W Kisling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:38
CPC Classifications
E; E21; E21B; E21B49/00; E21B49/08; E21B49/081; E21B49/082
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A BOREHOLE APPARATUS FOR OBTAINING A REPRESENTATIVE FLUID SAMPLE IN A BORE HOLE COMPRISING: A HOUSING ADAPTED FOR PASSAGE THROUGH A BOREHOLE, SAID HOUSING HAVING A CYLINDRICAL BORE; FIRST AND SECOND PISTONS SLIDABLY AND SEALINGLY POSITIONED IN SAID BORE AND RELATIVELY MOVABLE BETWEEN A COLLAPSED POSITION OF ADJACENCY AND AN EXTENDED, SPACED-APART POSITION TO DIFINE THEREBETWEEN A FLUID SAMPLE-RECEIVING CHAMBER, SAID HOUSING HAVING A SAMPLE-ADMITTING OPENING POSITIONED TO OPEN BETWEEN SAID PISTONS IN THEIR COLLAPSED POSITION TO ADMIT A FLUID SAMPLE THEREBETWEEN; MEANS IN SAID HOUSING FOR CONTROLLING THE RATE OF RELATIVE MOVEMENT BETWEEN SAID PISTONS UPON ADMISSION OF A FLUID SAMPLE THEREBETWEEN; AND MEANS FOR COUPLING SAID PISTONS TO ONE ANOTHER AT SAID EXTENDED POSITION OF SAID PISTONS FOR JOINT MOVEMENT RELATIVE TO SAID SAMPLE-ADMITTING OPENING TO DISPLACE SAID PISTONS AND
Claim 2
Dependent Claim
132 words
A BOREHOLE APPARATUS FOR OBTAINING A REPRESENTATIVE FLUID SAMPLE IN A BORE HOLE COMPRISING: A HOUSING ADAPTED FOR PASSAGE THROUGH A BOREHOLE, SAID HOUSING HAVING A CYLINDRICAL BORE; FIRST AND SECOND PISTONS SLIDABLY AND SEALINGLY POSITIONED IN SAID BORE AND RELATIVELY MOVABLE BETWEEN A COLLAPSED POSITION OF ADJACENCY AND AN EXTENDED, SPACED-APART POSITION TO DIFINE THEREBETWEEN A FLUID SAMPLE-RECEIVING CHAMBER, SAID HOUSING HAVING A SAMPLE-ADMITTING OPENING POSITIONED TO OPEN BETWEEN SAID PISTONS IN THEIR COLLAPSED POSITION TO ADMIT A FLUID SAMPLE THEREBETWEEN; MEANS IN SAID HOUSING FOR CONTROLLING THE RATE OF RELATIVE MOVEMENT BETWEEN SAID PISTONS UPON ADMISSION OF A FLUID SAMPLE THEREBETWEEN; AND MEANS FOR COUPLING SAID PISTONS TO ONE ANOTHER AT SAID EXTENDED POSITION OF SAID PISTONS FOR JOINT MOVEMENT RELATIVE TO SAID SAMPLE-ADMITTING OPENING TO DISPLACE SAID PISTONS AND
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) | 1966-07-01 | 1966-12-31 | 1967-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-01 | 1970-12-31 | 1971-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-01 | 1974-12-31 | 1975-07-02 | $7700.00 | Window Closed / Lapsed |