US3189095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulically set well packers
Assignee: Baker Hughes Oilfield Operations LLC
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Filing: 1962-11-05
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Granted: 1965-06-15
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Expires: 1982-11-05
Abstract
No abstract record available.
Inventors
- 👤 Rochemont John F De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:54
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/129; E21B33/1295
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
IN APPARATUS ADAPTED TO BE SET IN A WELL BORE: BODY MEANS; NORMALLY RETRACTED MEANS DISPOSED ABOUT SAID BODY MEANS AND ADAPTED TO BE EXPANDED OUTWARDLY INTO ENGAGEMENT WITH THE WALL OF THE WELL BORE; UPPER ACTUATING MEANS ENGAGING SAID NORMALLY RETRACTED MEANS; LOWER ACTUATING MEANS ENGAGING SAID NORMALLY RETRACTED MEANS; SAID UPPER AND LOWER ACTUATING MEANS BEING MOVABLE TOWARD EACH OTHER TO EXPAND SAID NORNALLY RETRACTED MEANS: HYDRAULICALLY OPERABLE MEANS RESPONSIVE TO THE HYDROSTATIC HEAD OF FLUID IN THE WELL BORE FOR RELATIVELY SHIFTING SAID UPPER AND LOWER ACTUATING MEANS TOWARD EACH OTHER; RELEASABLE LOCK MEANS FOR PREVENTING RELATIVE SHIFTING BETWEEN SAID BODY MEANS AND ONE OF SAID ACTUATING MEANS AND HELD IN LOCKED POSITION PREVENTING SUCH SHIFTING BY THE OTHER OF SAID ACTUATING MEANS; MEANS INTERCONNECTING SAID BODY MEANS AND OTHER OF SAID ACTUATING MEANS FOR PREVENTING RELATIVE SHIFTING THEREBETWEEN; AND MEANS FOR SHIFTING SAID OTHER OF SAID ACTUATING MEANS FROM HOLDING RELATION TO SAID MEANS TO RELEASE SAID LOCK MEANS.
Claim 2
Dependent Claim
163 words
IN APPARATUS ADAPTED TO BE SET IN A WELL BORE: BODY MEANS; NORMALLY RETRACTED MEANS DISPOSED ABOUT SAID BODY MEANS AND ADAPTED TO BE EXPANDED OUTWARDLY INTO ENGAGEMENT WITH THE WALL OF THE WELL BORE; UPPER ACTUATING MEANS ENGAGING SAID NORMALLY RETRACTED MEANS; LOWER ACTUATING MEANS ENGAGING SAID NORMALLY RETRACTED MEANS; SAID UPPER AND LOWER ACTUATING MEANS BEING MOVABLE TOWARD EACH OTHER TO EXPAND SAID NORNALLY RETRACTED MEANS: HYDRAULICALLY OPERABLE MEANS RESPONSIVE TO THE HYDROSTATIC HEAD OF FLUID IN THE WELL BORE FOR RELATIVELY SHIFTING SAID UPPER AND LOWER ACTUATING MEANS TOWARD EACH OTHER; RELEASABLE LOCK MEANS FOR PREVENTING RELATIVE SHIFTING BETWEEN SAID BODY MEANS AND ONE OF SAID ACTUATING MEANS AND HELD IN LOCKED POSITION PREVENTING SUCH SHIFTING BY THE OTHER OF SAID ACTUATING MEANS; MEANS INTERCONNECTING SAID BODY MEANS AND OTHER OF SAID ACTUATING MEANS FOR PREVENTING RELATIVE SHIFTING THEREBETWEEN; AND MEANS FOR SHIFTING SAID OTHER OF SAID ACTUATING MEANS FROM HOLDING RELATION TO SAID MEANS TO RELEASE SAID LOCK MEANS.
References Cited (Backward Citations)
US3008523A
Cited
US3112796A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |