Patent US3336003A successfully refreshed from Google Patents.
US3336003A
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Travelling block guide
Assignee: Global Marine Inc
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Filing: 1966-02-17
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Granted: 1967-08-15
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Expires: 1986-02-17
Abstract
No abstract record available.
Inventors
- 👤 Crooke Robert Curtis
- 👤 Mar Corona Del
- 👤 Knorr Gordon Dayton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:22
CPC Classifications
E; E21; E21B; E21B15/00; E21B15/02; B; B66; B66D; B66D3/00; B66D3/04; B66D2700/00; B66D2700/02; B66D2700/026; B66D2700/028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
APPARATUS FOR GUIDING A TRAVELLING BLOCK ALONG A SELECTED SUBSTANTIALLY VERTICAL PATH IN A DERRICK OF AN OIL WELL DRILLING RIG AND THE LIKE, THE APPARATUS COMPRISING ELONGATE TRACK MEANS EXTENDING SUBSTANTIALLY VERTICALLY WITHIN THE DERRICK ALONG THE PATH OF TRAVEL OF THE TRAVELLING BLOCK, STAY MEANS FOR POSITIONING THE TRACK MEANS WITHIN THE DERRICK, GUIDE MEANS ENGAGED WITH THE TRACK MEANS FOR GUIDED MOVEMENT THEREALONG IN RESPONSE TO VERTICAL MOVEMENT OF THE TRAVELLING BLOCK, AND PIVOT MEANS CONNECTED BETWEEN THE TRAVELLING BLOCK AND THE GUIDE MEANS FOR MOUNTING THE TRAVELLING BLOCK TO THE GUIDE MEANS FOR TRACK MEANS ABOUT TWO SUBSTANTIALLY PERPENDICULAR AXES TRACK MEANS ABOUT TWO SUBSTANTIALLY PERPENDICULAR AXES SUBSTANTIALLY NORMAL TO THE PATH OF TRAVEL OF THE TRAVELLING BLOCK.
Claim 2
Dependent Claim
122 words
APPARATUS FOR GUIDING A TRAVELLING BLOCK ALONG A SELECTED SUBSTANTIALLY VERTICAL PATH IN A DERRICK OF AN OIL WELL DRILLING RIG AND THE LIKE, THE APPARATUS COMPRISING ELONGATE TRACK MEANS EXTENDING SUBSTANTIALLY VERTICALLY WITHIN THE DERRICK ALONG THE PATH OF TRAVEL OF THE TRAVELLING BLOCK, STAY MEANS FOR POSITIONING THE TRACK MEANS WITHIN THE DERRICK, GUIDE MEANS ENGAGED WITH THE TRACK MEANS FOR GUIDED MOVEMENT THEREALONG IN RESPONSE TO VERTICAL MOVEMENT OF THE TRAVELLING BLOCK, AND PIVOT MEANS CONNECTED BETWEEN THE TRAVELLING BLOCK AND THE GUIDE MEANS FOR MOUNTING THE TRAVELLING BLOCK TO THE GUIDE MEANS FOR TRACK MEANS ABOUT TWO SUBSTANTIALLY PERPENDICULAR AXES TRACK MEANS ABOUT TWO SUBSTANTIALLY PERPENDICULAR AXES SUBSTANTIALLY NORMAL TO THE PATH OF TRAVEL OF THE TRAVELLING BLOCK.
References Cited (Backward Citations)
US3280520A
Cited
US3281122A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |