US3255576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mud degasser
Assignee: United Gas Corp
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Filing: 1964-10-02
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Granted: 1966-06-14
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Expires: 1984-10-02
Abstract
No abstract record available.
Inventors
- 👤 Billy W Dawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:04
CPC Classifications
E; E21; E21B; E21B21/00; E21B21/06; E21B21/063; E21B21/067
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
A MUD DEGASSER COMPRISING, A MUD TANK, A RISER PIPE EXTENDING UPWARDLY FROM THE MUD TANK AND HAVING ITS LOWER END OPEN TO THE INTERIOR OF THE LOWER SECTION OF THE TANK BELOW A NORMAL MUD LEVEL THEREIN, A CLOSED VACUUM CHAMBER ATTACHED TO THE UPPER END OF THE RISER, A MUD OUTLET PIPE ATTACHED TO THE VACCUM CHAMBER AND EXTENDING DOWNWARDLY THEREFROM, A PUMP IN THE MUD OUTLET PIPE FOR DRAWING MUD FROM THE VACUUM CHAMBER, A SECOND MUD TANK, SAID OUTLET PIPE OPENING INTO THE SECOND MUD TANK BELOW THE NORMAL MUD LEVEL THEREIN A GAS PIPE HAVING ITS INLET ATTACHED TO THE UPPER SECTION OF THE VACCUM CHAMBER ABOVE A NORMAL MUD LEVEL THEREIN, A VERTICALLY EXTENDING LIQUID-VACUUM PIPE HAVING ITS LOWER END OPEN TO ATMOSPHERE AND ITS UPPER END CONNECTED TO THE EXTENDING DOWNWARDLY FROM THE OUTLET OF SAID GAS PIPE, AND MEANS FOR INTRODUCING FLOWING LIQUID INTO THE UPPER SECTION OF THE LIQUID-VACUUM PIPE FOR DOWNWARD DISCHARGE AND FLOW THEREIN AND KEEPING SAID PIPE SUBSTANTIALLY FILLED WITH DOWNFLOWING LIQUID.
Claim 2
Dependent Claim
174 words
A MUD DEGASSER COMPRISING, A MUD TANK, A RISER PIPE EXTENDING UPWARDLY FROM THE MUD TANK AND HAVING ITS LOWER END OPEN TO THE INTERIOR OF THE LOWER SECTION OF THE TANK BELOW A NORMAL MUD LEVEL THEREIN, A CLOSED VACUUM CHAMBER ATTACHED TO THE UPPER END OF THE RISER, A MUD OUTLET PIPE ATTACHED TO THE VACCUM CHAMBER AND EXTENDING DOWNWARDLY THEREFROM, A PUMP IN THE MUD OUTLET PIPE FOR DRAWING MUD FROM THE VACUUM CHAMBER, A SECOND MUD TANK, SAID OUTLET PIPE OPENING INTO THE SECOND MUD TANK BELOW THE NORMAL MUD LEVEL THEREIN A GAS PIPE HAVING ITS INLET ATTACHED TO THE UPPER SECTION OF THE VACCUM CHAMBER ABOVE A NORMAL MUD LEVEL THEREIN, A VERTICALLY EXTENDING LIQUID-VACUUM PIPE HAVING ITS LOWER END OPEN TO ATMOSPHERE AND ITS UPPER END CONNECTED TO THE EXTENDING DOWNWARDLY FROM THE OUTLET OF SAID GAS PIPE, AND MEANS FOR INTRODUCING FLOWING LIQUID INTO THE UPPER SECTION OF THE LIQUID-VACUUM PIPE FOR DOWNWARD DISCHARGE AND FLOW THEREIN AND KEEPING SAID PIPE SUBSTANTIALLY FILLED WITH DOWNFLOWING LIQUID.
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) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |