Patent US3201919A successfully refreshed from Google Patents.
US3201919A
Expired / Lapsed
US
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Drilling mud degasser
Assignee: Bass Brothers Enterprises Inc
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Filing: 1962-05-23
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Granted: 1965-08-24
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Expires: 1982-05-23
Abstract
No abstract record available.
Inventors
- 👤 Alfred B Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:10
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/0042; B01D19/0052; B01D19/0057; B01D19/0036; E; E21; E21B; E21B21/00; E21B21/06; E21B21/063; E21B21/067
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
THE METHOD OF DEGASSING WELL DRILLING MUD WHICH COMPRISES TANGENTIALLY FEEDING GAS-LADEN MUD AT HIGH VELOCITY INTO A CYLINDRICAL CHAMBER SUBSTANTIALLY LATERALLY TO THE LONGITUDINAL AXIS THEREOF CAUSING SAID MUD TO TRAVERSE A HELICAL PATH WITHIN SAID CHAMBER, SUBJECTING THE AXIAL REGION OF SAID CHAMBER TO A SUBATMOSPHERIC PRESSURE, WITHDRAWING THE GAS-FREE MUD FROM THE CHAMBER SUBSTANTIALLY DOWNSTREAM FROM THE POINT OF ENTRY OF THE GAS-LADEN MUD, SEPARATING A PORTION OF SUCH GAS-FREE MUD
Claim 2
Independent Claim
74 words
THE METHOD OF DEGASSING WELL DRILLING MUD WHICH COMPRISES TANGENTIALLY FEEDING GAS-LADEN MUD AT HIGH VELOCITY INTO A CYLINDRICAL CHAMBER SUBSTANTIALLY LATERALLY TO THE LONGITUDINAL AXIS THEREOF CAUSING SAID MUD TO TRAVERSE A HELICAL PATH WITHIN SAID CHAMBER, SUBJECTING THE AXIAL REGION OF SAID CHAMBER TO A SUBATMOSPHERIC PRESSURE, WITHDRAWING THE GAS-FREE MUD FROM THE CHAMBER SUBSTANTIALLY DOWNSTREAM FROM THE POINT OF ENTRY OF THE GAS-LADEN MUD, SEPARATING A PORTION OF SUCH GAS-FREE MUD
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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) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |