US3206256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transportation of dispersed solid particles in pipe lines
Assignee: Shell USA Inc
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Filing: 1963-07-15
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Granted: 1965-09-14
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Expires: 1983-07-15
Abstract
No abstract record available.
Inventors
- 👤 Scott Paul Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:55
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
IN THE METHOD OF TRANSPORTING SOLID PARTICLES IN DISPERSION WITHIN A CARRIER LIQUID IN WHICH SAID PARTICLES ARE ESSENTIALLY INSOLUBLE, THE IMPROVEMENT OF RESTRAINING SAID SOLID PARTICLES AGAINST RELATIVE VERTICAL MIGRATION THROUGH SAID LIQUID DUE TO DENSITY DIFFERENCES BY FORMING AGGLOMERATES OF SAID PARTICLES, SAID AGGLOMERATES INCLUDING ON THE SURFACES OF SAID PARTICLES A FILM-FORMING AMOUNT OF AN AGGLOMERATING LIQUID WHICH IS SUBSTANTIALLY IMMISCIBLE WITH SAID CARRIER LIQUID AND CONTAINING VOIDS, DISPERSING THE RESULTING AGGLOMERATES IN THE CARRIER LIQUID, AND FLOWING THE RESULTING DISPERSION THROUGH A PIPELINE.
Claim 2
Dependent Claim
87 words
IN THE METHOD OF TRANSPORTING SOLID PARTICLES IN DISPERSION WITHIN A CARRIER LIQUID IN WHICH SAID PARTICLES ARE ESSENTIALLY INSOLUBLE, THE IMPROVEMENT OF RESTRAINING SAID SOLID PARTICLES AGAINST RELATIVE VERTICAL MIGRATION THROUGH SAID LIQUID DUE TO DENSITY DIFFERENCES BY FORMING AGGLOMERATES OF SAID PARTICLES, SAID AGGLOMERATES INCLUDING ON THE SURFACES OF SAID PARTICLES A FILM-FORMING AMOUNT OF AN AGGLOMERATING LIQUID WHICH IS SUBSTANTIALLY IMMISCIBLE WITH SAID CARRIER LIQUID AND CONTAINING VOIDS, DISPERSING THE RESULTING AGGLOMERATES IN THE CARRIER LIQUID, AND FLOWING THE RESULTING DISPERSION THROUGH A PIPELINE.
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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |