Patent US3092192A successfully refreshed from Google Patents.
US3092192A
Expired / Lapsed
US
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Method of and apparatus for cutting, encasing and retrieving a core of earth formation from a well
Assignee: Individual
•
Filing: 1959-12-14
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Granted: 1963-06-04
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Expires: 1979-12-14
Abstract
No abstract record available.
Inventors
- 👤 Carroll L Deely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:10
CPC Classifications
E; E21; E21B; E21B25/00; E21B25/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A CORE GRIPPING MEANS FOR USE IN A CORE BARREL, WHICH CORE GRIPPING MEANS COMPRISES; AN ANNULAR MEMBER, THE INNER DIAMETER OF WHICH ANNULAR MEMBER IS UNIFORMLY CYLINDRICAL THROUGHOUT THE LENGTH THEREOF, THE OUTER PORTION OF WHICH ANNULAR MEMBER IS FRUSTRO-CONICAL IN SHAPE, LONGITUDINAL RIBS FORMED ON THE OUTER SURFACE OF SAID ANNULAR MEMBER, WHICH RIBS FORM LONGITUDINAL GROOVES ON THE OUTER SURFACE OF SAID ANNULAR MEMBER, SAID ANNULAR MEMBER BEING SPLIT LONGITUDINALLY WITH THE EDGES THEREOF BEING STEP-CUT AND OVER-LAPPING, SAID ANNULAR MEMBER BEING MADE OF A RESILIENT MATERIAL, A MOVABLE ABUTMENT MOUNTED ON THE CORE BARREL AND BEING POSITIONED BETWEEN ONE OF THE EDGES OF SAID ANNULAR MEMBER AND ONE OF SAID LOGITUDINAL RIBS TO SELECTIVELY MAINTAIN SAID ANNULAR MEMBER IN EXPANDED CONDITION.
Claim 2
Dependent Claim
125 words
A CORE GRIPPING MEANS FOR USE IN A CORE BARREL, WHICH CORE GRIPPING MEANS COMPRISES; AN ANNULAR MEMBER, THE INNER DIAMETER OF WHICH ANNULAR MEMBER IS UNIFORMLY CYLINDRICAL THROUGHOUT THE LENGTH THEREOF, THE OUTER PORTION OF WHICH ANNULAR MEMBER IS FRUSTRO-CONICAL IN SHAPE, LONGITUDINAL RIBS FORMED ON THE OUTER SURFACE OF SAID ANNULAR MEMBER, WHICH RIBS FORM LONGITUDINAL GROOVES ON THE OUTER SURFACE OF SAID ANNULAR MEMBER, SAID ANNULAR MEMBER BEING SPLIT LONGITUDINALLY WITH THE EDGES THEREOF BEING STEP-CUT AND OVER-LAPPING, SAID ANNULAR MEMBER BEING MADE OF A RESILIENT MATERIAL, A MOVABLE ABUTMENT MOUNTED ON THE CORE BARREL AND BEING POSITIONED BETWEEN ONE OF THE EDGES OF SAID ANNULAR MEMBER AND ONE OF SAID LOGITUDINAL RIBS TO SELECTIVELY MAINTAIN SAID ANNULAR MEMBER IN EXPANDED CONDITION.
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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) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |