US3128077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low pressure blowout preventer
Assignee: Cooper Industries LLC
•
Filing: 1960-05-16
•
Granted: 1964-04-07
•
Expires: 1980-05-16
Abstract
No abstract record available.
Inventors
- 👤 Maurice C Lucky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:47
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/06; E21B33/061; E21B33/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A LOW PRESSURE BLOWOUT PREVENTER COMPRISING; A BODY HAVING A BORE THERETHROUGH, A PLURALITY OF GUIDEWAYS IN THE BODY CONNECTING WITH THE BORE; SEAL MEANS OF RESILIENT MATERIAL EXTENDING LONGITUDINALLY OF THE BORE ACROSS THE CONNECTION OF EACH GUIDEWAY THEREWITH AND ANCHORED AT ONLY ONE END AGAINST MOVEMENT AXIALLY OF THE BORE; AND A RAM MOVABLE LONGITUDINALLY WITHIN EACH GUIDEWAY BETWEEN RETRACTED AND EXTENDED POSITIONS, SAID SEAL MEANS PROVIDING AN OPENING IN SAID BORE WHEN THE RAMS ARE RETRACTED, AND BEING DEFORMABLE INTO SEALING ENGAGEMENT ABOUT AN OBJECT IN THE OPENING, OR WITH ITSELF WHEN THE OPENING IS EMPTY, WHEN THE RAMS ARE EXTENDED.
Claim 2
Dependent Claim
104 words
A LOW PRESSURE BLOWOUT PREVENTER COMPRISING; A BODY HAVING A BORE THERETHROUGH, A PLURALITY OF GUIDEWAYS IN THE BODY CONNECTING WITH THE BORE; SEAL MEANS OF RESILIENT MATERIAL EXTENDING LONGITUDINALLY OF THE BORE ACROSS THE CONNECTION OF EACH GUIDEWAY THEREWITH AND ANCHORED AT ONLY ONE END AGAINST MOVEMENT AXIALLY OF THE BORE; AND A RAM MOVABLE LONGITUDINALLY WITHIN EACH GUIDEWAY BETWEEN RETRACTED AND EXTENDED POSITIONS, SAID SEAL MEANS PROVIDING AN OPENING IN SAID BORE WHEN THE RAMS ARE RETRACTED, AND BEING DEFORMABLE INTO SEALING ENGAGEMENT ABOUT AN OBJECT IN THE OPENING, OR WITH ITSELF WHEN THE OPENING IS EMPTY, WHEN THE RAMS ARE EXTENDED.
References Cited (Backward Citations)
NL81330C
Cited
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Cited
US2111312A
Cited
US2196337A
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US2850256A
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US2945665A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |