US3209771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for controlling interface in pipeline fluid transport
Assignee: Marathon Oil Co
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Filing: 1961-10-12
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Granted: 1965-10-05
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Expires: 1981-10-12
Abstract
No abstract record available.
Inventors
- 👤 William B Gogarty
- 👤 Charles W Gullikson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:22
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/04; B08B9/053; B08B9/055; B08B9/0555; F; F16; F16L; F16L55/00; F17; F17D; F17D3/00; F17D3/03; F17D3/05; Y; Y10; Y10T; Y10T137/00; Y10T137/0318
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
THE METHOD OF OPERATING A PIPELINE COMPRISING SEQUENTIALLY FLOWING BETWEEN PREDETERMINED POINTS IN A PIPELINE A FIRST FLUID, A GELLED MASS WHICH SLIPS READILY WITHIN THE PIPELINE, AND A SECOND FLUID, SAID GELLED MASS BEING SELECTED FROM THE GROUP CONSISTING OF GELS OF POLYMERS AND WATER, GELS OF POLYMERS AND HYDROCARBONS, AND GELS OF HYDROCARBONS CONTAINING TRANSITION METAL ESTERS, AND SAID GELLED MASS BEING CHARACTERIZED IN SAID PIPELINE FLOW AS BEING SUFFICIENTLY FLUID TO CONFORM ITS SHAPE TO VARYING CONTOURS OF THE PIPELINE, AS HAVING AN APPARENT VISCOSITY MUCH GREATER THAN THE VISCOSITY OF THE FIRST AND SECOND FLUIDS, AND BEING SELF-SUSTAINING.
Claim 2
Independent Claim
102 words
THE METHOD OF OPERATING A PIPELINE COMPRISING SEQUENTIALLY FLOWING BETWEEN PREDETERMINED POINTS IN A PIPELINE A FIRST FLUID, A GELLED MASS WHICH SLIPS READILY WITHIN THE PIPELINE, AND A SECOND FLUID, SAID GELLED MASS BEING SELECTED FROM THE GROUP CONSISTING OF GELS OF POLYMERS AND WATER, GELS OF POLYMERS AND HYDROCARBONS, AND GELS OF HYDROCARBONS CONTAINING TRANSITION METAL ESTERS, AND SAID GELLED MASS BEING CHARACTERIZED IN SAID PIPELINE FLOW AS BEING SUFFICIENTLY FLUID TO CONFORM ITS SHAPE TO VARYING CONTOURS OF THE PIPELINE, AS HAVING AN APPARENT VISCOSITY MUCH GREATER THAN THE VISCOSITY OF THE FIRST AND SECOND FLUIDS, AND BEING SELF-SUSTAINING.
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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |