US3105547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selectively actuated well tool
Assignee: Camco Inc
•
Filing: 1959-03-30
•
Granted: 1963-10-01
•
Expires: 1979-03-30
Abstract
No abstract record available.
Inventors
- 👤 Warren G Ownby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:56
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
116 words
MEANS FOR PERFORMING WOEK AT ANY OF SEVERAL SELECTED WELL DEPTHS, INCLUDING A SERIES OF REFERENCE MARKERS LOCATED AT VARIOUS DEPTHS IN A WELL HOLE AND EACH BEING COMPARATIAVELY DISSIMILAR FROM THE OTHERS, A HOUSING FOR PASSAGE THROUGH THE WELL HOLE, ELECTRICALLY ACTUATED WORK PERFORMING MEANS CARRIED BY THE HOUSING IN AN INITIALLY INACTIVE CONDITION AND MEANS TO ACTIVATE SAID WORK PERFORMING MEANS INCLUDING DETECTOR MEANS RESPONSIVE TO SAID MARKERS, AN ELECTRIC CURRENT SUPPLY CIRCUIT, SWITCH MEANS THEREFOR INFLUENCED BY THE RESPONSE OF SAID DETECTOR MEANS TO CLOSE THE CIRCUIT TO THE WORK PERFORMING MEANS AND MEANS OPERATIVE ON SAID DETECTOR MEANS TO SET THE SAME FOR RESPONSE TO ANY ONE OF SAID REFERENCE MARKERS SELECTIVELY.
Claim 2
Dependent Claim
116 words
MEANS FOR PERFORMING WOEK AT ANY OF SEVERAL SELECTED WELL DEPTHS, INCLUDING A SERIES OF REFERENCE MARKERS LOCATED AT VARIOUS DEPTHS IN A WELL HOLE AND EACH BEING COMPARATIAVELY DISSIMILAR FROM THE OTHERS, A HOUSING FOR PASSAGE THROUGH THE WELL HOLE, ELECTRICALLY ACTUATED WORK PERFORMING MEANS CARRIED BY THE HOUSING IN AN INITIALLY INACTIVE CONDITION AND MEANS TO ACTIVATE SAID WORK PERFORMING MEANS INCLUDING DETECTOR MEANS RESPONSIVE TO SAID MARKERS, AN ELECTRIC CURRENT SUPPLY CIRCUIT, SWITCH MEANS THEREFOR INFLUENCED BY THE RESPONSE OF SAID DETECTOR MEANS TO CLOSE THE CIRCUIT TO THE WORK PERFORMING MEANS AND MEANS OPERATIVE ON SAID DETECTOR MEANS TO SET THE SAME FOR RESPONSE TO ANY ONE OF SAID REFERENCE MARKERS SELECTIVELY.
Claim 3
Dependent Claim
61 words
FOR SIGNALING OPERATION OF A WELL TOOL BEING RUN THROUGH A WELL TUBING STRING, A WELL TUBING STRING SECTION HAVING AN ANNULAR INTERNAL POCKET, A SUCESSION OF SEPARATE RINGS STACKED WITHIN SAID POCKET, MAGNETS CARRIED BY CERTAIN OF SAID RINGS AND ADAPTED TO BE SELECTIVELY SPACED APART BY THE DISPOSITION BETWEEN MAGNET CARRYING RINGS OF OTHER RINGS OF PREDETERMINED AXIAL LENGTHS.
Claim 4
Dependent Claim
61 words
FOR SIGNALING OPERATION OF A WELL TOOL BEING RUN THROUGH A WELL TUBING STRING, A WELL TUBING STRING SECTION HAVING AN ANNULAR INTERNAL POCKET, A SUCESSION OF SEPARATE RINGS STACKED WITHIN SAID POCKET, MAGNETS CARRIED BY CERTAIN OF SAID RINGS AND ADAPTED TO BE SELECTIVELY SPACED APART BY THE DISPOSITION BETWEEN MAGNET CARRYING RINGS OF OTHER RINGS OF PREDETERMINED AXIAL LENGTHS.
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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) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |