US3272222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blowout preventer
Assignee: Cooper Industries LLC
•
Filing: 1963-10-28
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Granted: 1966-09-13
•
Expires: 1983-10-28
Abstract
No abstract record available.
Inventors
- 👤 Allen Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:55
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/06; E21B33/061; E21B33/062; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/5983
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
229 words
A BLOWOUT PREVENTER, COMPRISING A BODY HAVING A BORE THERETHROUGH AND GUIDEWAYS THEREIN EXTENDING LATERALLY FROM OPPOSITE SIDES OF THE BORE, A BONNET DETACHABLY CONNECTED ACROSS THE OUTER END OF EACH GUIDEWAY OF THE BODY FOR CLOSING SAME, A CYLINDER IN EACH BONNET AND A PISTON RECIPROCABLE IN EACH CYLINDER, A RAM CONNECTED TO EACH PISTON ON THE INNER SIDE OF THE BONNET FOR RECIPROCATION OF THE RAM TOWARD AND AWAY FROM THE BONNET SO AS TO OPEN AND CLOSE THE BORE WHEN THE BONNET IS CONNECTED TO THE BODY IN NORMAL PREVENTER OPERATION, CYLINDER MEANS IN EACH BONNET IN SIDE-BY-SIDE RELATION TO THE FIRST-MENTIONED CYLINDER AND PISTON MEANS RECIPROCABLE WITHIN SAID CYLINDER MEANS, MEANS SUPPORTING EACH BONNET FROM THE BODY AND CONNECTED TO THE PISTON MEANS WITHIN THE CYLINDER MEANS IN SAID BONNET FOR RECIPROCATION OF THE BONNET, UPON DETACHMENT THEREOF FROM SAID BODY, BETWEEN ITS POSITION ACROSS THE OUTER END OF THE GUIDEWAY AND A POSITION SPACED THEREFROM SO AS TO WITHDRAW THE RAM ON SAID BONNET FROM ITS GUIDEWAY, AND MEANS INCLUDING FLUID PASSAGEWAYS IN EACH BONNET FOR INTRODUCING PRESSURE FLUID INTO THE CYLINDER AND CYLNDER MEANS THEREIN SO AS TO MOVE THE BONNET BETWEEN SAID POSITIONS AND TO MOVE THE RAM BETWEEN BORE OPENING AND CLOSING POSITION DURING NORMAL PREVENTER OPERATION AND TOWARD THE BONNET PRIOR TO MOVEMENT OF THE BONNET TO GUIDEWAY CLOSING POSITION.
Claim 2
Dependent Claim
229 words
A BLOWOUT PREVENTER, COMPRISING A BODY HAVING A BORE THERETHROUGH AND GUIDEWAYS THEREIN EXTENDING LATERALLY FROM OPPOSITE SIDES OF THE BORE, A BONNET DETACHABLY CONNECTED ACROSS THE OUTER END OF EACH GUIDEWAY OF THE BODY FOR CLOSING SAME, A CYLINDER IN EACH BONNET AND A PISTON RECIPROCABLE IN EACH CYLINDER, A RAM CONNECTED TO EACH PISTON ON THE INNER SIDE OF THE BONNET FOR RECIPROCATION OF THE RAM TOWARD AND AWAY FROM THE BONNET SO AS TO OPEN AND CLOSE THE BORE WHEN THE BONNET IS CONNECTED TO THE BODY IN NORMAL PREVENTER OPERATION, CYLINDER MEANS IN EACH BONNET IN SIDE-BY-SIDE RELATION TO THE FIRST-MENTIONED CYLINDER AND PISTON MEANS RECIPROCABLE WITHIN SAID CYLINDER MEANS, MEANS SUPPORTING EACH BONNET FROM THE BODY AND CONNECTED TO THE PISTON MEANS WITHIN THE CYLINDER MEANS IN SAID BONNET FOR RECIPROCATION OF THE BONNET, UPON DETACHMENT THEREOF FROM SAID BODY, BETWEEN ITS POSITION ACROSS THE OUTER END OF THE GUIDEWAY AND A POSITION SPACED THEREFROM SO AS TO WITHDRAW THE RAM ON SAID BONNET FROM ITS GUIDEWAY, AND MEANS INCLUDING FLUID PASSAGEWAYS IN EACH BONNET FOR INTRODUCING PRESSURE FLUID INTO THE CYLINDER AND CYLNDER MEANS THEREIN SO AS TO MOVE THE BONNET BETWEEN SAID POSITIONS AND TO MOVE THE RAM BETWEEN BORE OPENING AND CLOSING POSITION DURING NORMAL PREVENTER OPERATION AND TOWARD THE BONNET PRIOR TO MOVEMENT OF THE BONNET TO GUIDEWAY CLOSING POSITION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |