Patent US3360048A successfully refreshed from Google Patents.
US3360048A
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US
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Annulus valve
Assignee: Hughes Tool Co
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Filing: 1964-06-29
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Granted: 1967-12-26
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Expires: 1984-06-29
Abstract
No abstract record available.
Inventors
- 👤 Bruce J Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:19
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/04; E21B33/043; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87153
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
AN ANNULUS VALVE APPARATUS FOR CONTROLLING FLUID FLOW THROUGH AN ANNULUS BETWEEN A CASING AND AN INNER TUBING WHEREIN SAID VALVE APPARATUS IS CONNECTED INTO SAID TUBING AND HAS AN APPARATUS BORE ALIGNED TO THE TUBING BORE, SAID APPARATUS COMPRISING: ANNULUS CLOSING MEANS FOR CLOSING THE ANNULUS BETWEEN THE CASING AND THE INNER TUBING TO THE PASSAGE OF FLUID; PASSAGE MEANS INTERCONNECTING PORTIONS OF SAID ANNULUS ABOVE AND BELOW SAID ANNULUS CLOSING MEANS THROUGH A PREDETERMINED PASSAGE; AND PASSAGE CLOSURE MEANS AND ASSOCIATED ACTUATING MEANS MOUNTED WITHIN SAID VALVE APPARATUS FOR OPENING AND CLOSING SAID PASSAGE MEANS TO CONTROL FLUID FLOW IN THE ANNULUS BETWEEN SAID TUBING AND CASING, SAID ACTUATING MEANS BEING OPERABLE WITHIN SAID APPARATUS BORE WITHOUT REMOVAL THEREFROM BY MEANS REMOVABLY RUN THROUGH SAID TUBING AND APPARATUS BORES.
Claim 2
Dependent Claim
131 words
AN ANNULUS VALVE APPARATUS FOR CONTROLLING FLUID FLOW THROUGH AN ANNULUS BETWEEN A CASING AND AN INNER TUBING WHEREIN SAID VALVE APPARATUS IS CONNECTED INTO SAID TUBING AND HAS AN APPARATUS BORE ALIGNED TO THE TUBING BORE, SAID APPARATUS COMPRISING: ANNULUS CLOSING MEANS FOR CLOSING THE ANNULUS BETWEEN THE CASING AND THE INNER TUBING TO THE PASSAGE OF FLUID; PASSAGE MEANS INTERCONNECTING PORTIONS OF SAID ANNULUS ABOVE AND BELOW SAID ANNULUS CLOSING MEANS THROUGH A PREDETERMINED PASSAGE; AND PASSAGE CLOSURE MEANS AND ASSOCIATED ACTUATING MEANS MOUNTED WITHIN SAID VALVE APPARATUS FOR OPENING AND CLOSING SAID PASSAGE MEANS TO CONTROL FLUID FLOW IN THE ANNULUS BETWEEN SAID TUBING AND CASING, SAID ACTUATING MEANS BEING OPERABLE WITHIN SAID APPARATUS BORE WITHOUT REMOVAL THEREFROM BY MEANS REMOVABLY RUN THROUGH SAID TUBING AND APPARATUS BORES.
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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 |