Patent US3360059A successfully refreshed from Google Patents.
US3360059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retrievable bit
Assignee: Gulf Research and Development Co
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Filing: 1965-12-27
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Granted: 1967-12-26
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Expires: 1985-12-27
Abstract
No abstract record available.
Inventors
- 👤 Eber W Gaylord
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:25
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/60; E21B10/64; E21B10/66; E21B31/00; E21B31/12; E21B7/00; E21B7/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
221 words
APPARATUS FOR POSITIONING AND RETRIEVING NOZZLE HOLDERS IN A DRILL BIT COMPRISING A HOLLOW DRILL BIT BODY ADAPTED TO BE CONNECTED TO THE LOWER END OF DRILL PIPE, SAID DRILL BIT BODY HAVING A CENTRAL OPENING OF SUBSTANTIALLY ELLIPTICAL CROSS SECTION EXTENDING DOWNWARDLY THEREIN, A PAIR OF CHAMBERS EXTENDING DOWNWARDLY THROUGH THE BOTTOM OF THE DRILL BIT BODY, A KEY EXTENDING INWARDLY FROM THE WALL OF EACH OF THE CHAMBERS, A NOZZLE HOLDER SLIDEABLE IN EACH OF THE CHAMBERS, A COLLAR EXTENDING OUTWARDLY AT THE UPPER END OF EACH NOZZLE HOLDER TO LIMIT DOWNWARD MOVEMENT OF THE NOZZLE HOLDER IN THE CHAMBER, A DOWNWARDLY TAPERING GUIDE MEMBER ON THE LOWER END OF EACH OF THE NOZZLE HOLDERS ADAPTED TO GUIDE THE NOZZLE HOLDERS INTO THE CHAMBERS, A KEYWAY IN THE OUTER SURFACE EXTENDING FROM THE LOWER END OF THE KEYWAY ALONG SURFACE OF THE NOZZLE HOLDER, A DOWNWARDLY FACING CAM THE OUTER SURFACE OF THE GUIDE TO GUIDE THE KEY INTO THE KEYWAY AND THEREBY ORIENT THE NOZZLE HOLDER IN THE CHAMBER, A BAIL EXTENDING UPWARDLY FROM THE UPPER END OF EACH OF THE NOZZLE HOLDERS, A CABLE CONTAINER SUSPENDED FROM A WIRE LINE, A PAIR OF OPPOSED PIVOTALLY MOUNTED ARMS SUSPENDED FROM THE LOWER END OF THE CABLE CONTAINER, A SPRING ENGAGING SAID ARMS AND URGING THE ARMS APART AND
Claim 2
Dependent Claim
221 words
APPARATUS FOR POSITIONING AND RETRIEVING NOZZLE HOLDERS IN A DRILL BIT COMPRISING A HOLLOW DRILL BIT BODY ADAPTED TO BE CONNECTED TO THE LOWER END OF DRILL PIPE, SAID DRILL BIT BODY HAVING A CENTRAL OPENING OF SUBSTANTIALLY ELLIPTICAL CROSS SECTION EXTENDING DOWNWARDLY THEREIN, A PAIR OF CHAMBERS EXTENDING DOWNWARDLY THROUGH THE BOTTOM OF THE DRILL BIT BODY, A KEY EXTENDING INWARDLY FROM THE WALL OF EACH OF THE CHAMBERS, A NOZZLE HOLDER SLIDEABLE IN EACH OF THE CHAMBERS, A COLLAR EXTENDING OUTWARDLY AT THE UPPER END OF EACH NOZZLE HOLDER TO LIMIT DOWNWARD MOVEMENT OF THE NOZZLE HOLDER IN THE CHAMBER, A DOWNWARDLY TAPERING GUIDE MEMBER ON THE LOWER END OF EACH OF THE NOZZLE HOLDERS ADAPTED TO GUIDE THE NOZZLE HOLDERS INTO THE CHAMBERS, A KEYWAY IN THE OUTER SURFACE EXTENDING FROM THE LOWER END OF THE KEYWAY ALONG SURFACE OF THE NOZZLE HOLDER, A DOWNWARDLY FACING CAM THE OUTER SURFACE OF THE GUIDE TO GUIDE THE KEY INTO THE KEYWAY AND THEREBY ORIENT THE NOZZLE HOLDER IN THE CHAMBER, A BAIL EXTENDING UPWARDLY FROM THE UPPER END OF EACH OF THE NOZZLE HOLDERS, A CABLE CONTAINER SUSPENDED FROM A WIRE LINE, A PAIR OF OPPOSED PIVOTALLY MOUNTED ARMS SUSPENDED FROM THE LOWER END OF THE CABLE CONTAINER, A SPRING ENGAGING SAID ARMS AND URGING THE ARMS APART AND
References Cited (Backward Citations)
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US2360088A
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US2783972A
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US2982366A
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US2978028A
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US3199613A
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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) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |