US3085587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for treatment of drilling mud
Assignee: Bass Brothers Enterprises Inc
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Filing: 1959-05-19
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Granted: 1963-04-16
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Expires: 1979-05-19
Abstract
No abstract record available.
Inventors
- 👤 Richard L O'shields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:37
CPC Classifications
E; E21; E21B; E21B21/00; E21B21/06; E21B21/062; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0329; Y10T137/0335; Y10T137/8593; Y10T137/85978; Y10T137/86131
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
129 words
A METHOD COMPRISING THE STEPS OF PASSING A STREAM OF DRILLING MUD FROM A MUD SOURCE TO A CONSTANT VOLUME METERING STATION, METERING A CONSTANT VOLUME OF SAID MUD AT SAID STATION AND PASSING THE METERED MUD UNDER PRESSURE FROM SAID STATION THROUGH A MUD OUTLET PASSAGE, PASSING A STREAM OF MUD DILUTING FLUID UNDER PRESSURE FROM A SOURCE OF DILUTING FLUID THROUGH AN OUTLET COMMUNICATING WITH A PASSAGE LEADING TO THE MUD OUTLET PASSAGE TO EFFECT MIXING OF THE MUD AND DILUTING FLUID AT A POINT DOWNSTREAM FROM THE METERING STATION, PASSING A PORTION AT LEAST OF THE STREAM OF DILUTING FLUID FOR ADMIXTURE WITH THE MUD UPSTREAM FROM THE METERING STATION AND CONTROLLING BOTH THE UPSTREAM AND DOWNSTREAM FLOW OF DILUTING FLUID DISCHARGED INTO THE MUD STREAM.
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) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |