Patent US3209835A successfully refreshed from Google Patents.
US3209835A
Expired / Lapsed
US
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Inflatable packer apparatus
Assignee: ConocoPhillips Co
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Filing: 1963-08-02
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Granted: 1965-10-05
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Expires: 1983-08-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Henry A Bourne
- 👤 Preston L Gant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:27
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/127; E21B23/00; E21B23/14; E21B33/124; E21B33/1243; E21B47/00; E21B47/10; E21B47/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
IN A PACKER APPARATUS FOR ISOLATING ZONES OF AN OIL WELL, A HOUSING OF A SIZE TO BE INSERTED IN THE WELL, A PAIR OF AXIALLY SPACED HYDRAULICALLY INFLATABLE PACKERS ON SAID HOUSING TO ENGAGE THE WALLS OF THE WELL BORE AT THE UPPER AND LOWER ENDS OF THE ZONE UNDER STUDY WHEN INFLATED, A RESERVOIR FOR HYDRAULIC FLUID IN SAID HOUSING, A PUMP COMMUNICATING WITH SAID PACKERS AND SAID RESERVOIR TO FORCE HYDRAULIC FLUID INTO SAID PACKERS, A POWER SOURCE IN SAID HOUSING FOR SAID PUMP, SAID HOUSING HAVING A BY-PASS PASSAGEWAY THEREIN PROVIDING COMMUNICATION BETWEEN SAID PACKERS AND SAID RESERVOIR AROUND SAID DUMP, A VALVE IN SAID BY-PASS OPERATIVELY CONNECTED TO SAID POWER SOURCE FOR CLOSING SAID BY-PASS PASSAGEWAY WHEN SAID POWER SOURCE IS ENERGIZED AND OPENING SAID BY-PASS PASSAGEWAY WHEN SAID POWER SOURCE IS DE-ENERGIZED, AND MEANS COM-
Claim 2
Dependent Claim
141 words
IN A PACKER APPARATUS FOR ISOLATING ZONES OF AN OIL WELL, A HOUSING OF A SIZE TO BE INSERTED IN THE WELL, A PAIR OF AXIALLY SPACED HYDRAULICALLY INFLATABLE PACKERS ON SAID HOUSING TO ENGAGE THE WALLS OF THE WELL BORE AT THE UPPER AND LOWER ENDS OF THE ZONE UNDER STUDY WHEN INFLATED, A RESERVOIR FOR HYDRAULIC FLUID IN SAID HOUSING, A PUMP COMMUNICATING WITH SAID PACKERS AND SAID RESERVOIR TO FORCE HYDRAULIC FLUID INTO SAID PACKERS, A POWER SOURCE IN SAID HOUSING FOR SAID PUMP, SAID HOUSING HAVING A BY-PASS PASSAGEWAY THEREIN PROVIDING COMMUNICATION BETWEEN SAID PACKERS AND SAID RESERVOIR AROUND SAID DUMP, A VALVE IN SAID BY-PASS OPERATIVELY CONNECTED TO SAID POWER SOURCE FOR CLOSING SAID BY-PASS PASSAGEWAY WHEN SAID POWER SOURCE IS ENERGIZED AND OPENING SAID BY-PASS PASSAGEWAY WHEN SAID POWER SOURCE IS DE-ENERGIZED, AND MEANS COM-
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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |