US3330341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remotely positionable and removable wellhead connection and sealing apparatus
Assignee: Rockwell Manufacturing Co
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Filing: 1965-12-06
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Granted: 1967-07-11
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Expires: 1985-12-06
Abstract
No abstract record available.
Inventors
- 👤 Bank Of The Southwest Associa
- 👤 Allen F Rhodes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:43
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/035; E21B33/038
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
143 words
A REMOTELY POSITIONABLE AND REMOVABLE WELLHEAD SEALING APPARATUS ADAPTED TO CLOSE IN FLUIDTIGHT MANNER THE TOP OF A WELLHEAD ASSEMBLY LOCATED UNDERWATER AT AN OFFSHORE LOCATION, SAID SEALING APPARATUS COMPRISING A BODY MEMBER HAVING A CHAMBER FORMED THEREIN, SAID BODY MEMBER BEING OF A SIZE TO OPERATIVELY ENGAGE THE OPEN TOP OF A WELLHEAD ASSEMBLY HAVING A RECESSED LOCKING GROOVE IN THE WALL THEREOF, LATCH MEANS CARRIED BY SAID BODY MEMBER AND EXTENDIBLE BEYOND THE OUTER SURFACE THEREOF AND OF A SIZE TO SEAT IN THE RECESSED GROOVE IN THE WALL OF THE WELLHEAD ASSEMBLY, LATCH ACTUATING MEANS CARRIED BY SAID BODY MEMBER AND OPERATIVELY ENGAGING SAID LATCH MEANS FOR SELECTIVELY MOVING SAID LATCH MEANS TO AN OPERATIVE POSITION, AND SEALING MEANS CARRIED ON THE SURFACE OF THE BODY MEMBER FOR ESTABLISHING A FLUIDTIGHT SEAL BETWEEN SAID BODY MEMBER AND THE WELLHEAD ASSEMBLY
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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) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |