US3086589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetically set well packers
Assignee: Camco Inc
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Filing: 1959-07-30
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Granted: 1963-04-23
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Expires: 1979-07-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Harold E Mcgowen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:38
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
IN COMBINATION, A WELL TUBING STRING, VERTICALLY SPACED APART EXPANSIBLE PACKERS INCORPORATED IN THE TUBING STRING, FORCE APPLYING MEANS AT EACH PACKER FOR EFFECTING EXPANSION THEREOF, AND SIGNAL RESPONSIVE MEANS CONNECTED WITH THE FORCE APPLYING MEANS AT EACH PACKER AND INCLUDING AN ELECTRICALLY ACTUATED DEVICE FOR RENDERING THE FORCE APPLYING MEANS EFFECTIVE, AN ELECTRICAL CONTROL CIRCUIT THEREFOR HAVING SERIES CONNECTED CIRCUIT CONTROL SWITCHES THEREIN AND EACH PROVIDED WITH SWITCH CLOSURE MEANS RESPONSIVE TO A SIGNAL TRANSMITTED THERETO, SIGNAL TRANSMITTING DEVICES LEADING TO THE CLOSURE MEANS OF THE RESPECTIVE SWITCHES AND BEING CARRIED BY THE PACKER IN PREDETERMINED SPACED RELATION ONE TO ANOTHER AND SUCH PREDETERMINED SPACED RELATION OF THE DEVICES CARRIED BY ONE OF THE SEVERAL PACKERS DIFFERING FROM OTHERS AND A SET OF GO-DEVILS FOR PASSAGE SELECTIVELY THROUGH THE TUBING STRING AND EACH HAVING SPACED APART SIGNALING ELEMENTS, WHICH IN DIFFERENT GO-DEVILS OF THE SET ARE DIFFERENTLY SPACED APART AND IN CODED MATING RELATIONSHIP TO SAID PREDETERMINED SPACED RELATION OF THE SIGNAL TRANSMITTING DEVICES OF THE SEVERAL PACKERS.
Claim 2
Dependent Claim
169 words
IN COMBINATION, A WELL TUBING STRING, VERTICALLY SPACED APART EXPANSIBLE PACKERS INCORPORATED IN THE TUBING STRING, FORCE APPLYING MEANS AT EACH PACKER FOR EFFECTING EXPANSION THEREOF, AND SIGNAL RESPONSIVE MEANS CONNECTED WITH THE FORCE APPLYING MEANS AT EACH PACKER AND INCLUDING AN ELECTRICALLY ACTUATED DEVICE FOR RENDERING THE FORCE APPLYING MEANS EFFECTIVE, AN ELECTRICAL CONTROL CIRCUIT THEREFOR HAVING SERIES CONNECTED CIRCUIT CONTROL SWITCHES THEREIN AND EACH PROVIDED WITH SWITCH CLOSURE MEANS RESPONSIVE TO A SIGNAL TRANSMITTED THERETO, SIGNAL TRANSMITTING DEVICES LEADING TO THE CLOSURE MEANS OF THE RESPECTIVE SWITCHES AND BEING CARRIED BY THE PACKER IN PREDETERMINED SPACED RELATION ONE TO ANOTHER AND SUCH PREDETERMINED SPACED RELATION OF THE DEVICES CARRIED BY ONE OF THE SEVERAL PACKERS DIFFERING FROM OTHERS AND A SET OF GO-DEVILS FOR PASSAGE SELECTIVELY THROUGH THE TUBING STRING AND EACH HAVING SPACED APART SIGNALING ELEMENTS, WHICH IN DIFFERENT GO-DEVILS OF THE SET ARE DIFFERENTLY SPACED APART AND IN CODED MATING RELATIONSHIP TO SAID PREDETERMINED SPACED RELATION OF THE SIGNAL TRANSMITTING DEVICES OF THE SEVERAL PACKERS.
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) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |