Patent US2550374A successfully refreshed from Google Patents.
US2550374A
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Method for handling suspensions
Assignee: Standard Oil Development Co
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Filing: 1944-07-01
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Granted: 1951-04-24
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Expires: 1964-07-01
Abstract
No abstract record available.
Inventors
- 👤 Jewell S Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:36
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/1818; B01J8/005; B01J8/1827
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A METHOD FOR MAINTAINING A FINELY DIVIDED SOLID IN SUSPENSION IN A GASIFORM FLUID WHICH COMPRISES FORMING A PLURALITY OF STREAMS OF A GASIFORM FLUID THE INDIVIDUAL VELOCITIES OF WHICH ARE SUCH AS TO GIVE A COMBINED VELOCITY OF FLOW WHEN COMBINED OF APPROXIMATELY 18 FEET PER SECOND, FORMING A SUSPENSION OF A FINELY DIVIDED SOLID IN SAID STREAMS OF GASIFORM FLUID, AND FLOWING SAID SUSPENSION THROUGH A CONDUIT INTO A REACTION ZINE THROUGH AN AREA OF FLOW, SAID AREA OF FLOW BEING NO GREATER THAN THE AREA OF FLOW OF THE CONDUIT TIMES THE VELOCITY OF ONE LESS THAN THE PLURALITY OF STREAMS DIVIDED BY THE VELOCITY OF SAID PLURALITY OF STREAMS.
Claim 2
Independent Claim
113 words
A METHOD FOR MAINTAINING A FINELY DIVIDED SOLID IN SUSPENSION IN A GASIFORM FLUID WHICH COMPRISES FORMING A PLURALITY OF STREAMS OF A GASIFORM FLUID THE INDIVIDUAL VELOCITIES OF WHICH ARE SUCH AS TO GIVE A COMBINED VELOCITY OF FLOW WHEN COMBINED OF APPROXIMATELY 18 FEET PER SECOND, FORMING A SUSPENSION OF A FINELY DIVIDED SOLID IN SAID STREAMS OF GASIFORM FLUID, AND FLOWING SAID SUSPENSION THROUGH A CONDUIT INTO A REACTION ZINE THROUGH AN AREA OF FLOW, SAID AREA OF FLOW BEING NO GREATER THAN THE AREA OF FLOW OF THE CONDUIT TIMES THE VELOCITY OF ONE LESS THAN THE PLURALITY OF STREAMS DIVIDED BY THE VELOCITY OF SAID PLURALITY OF STREAMS.
References Cited (Backward Citations)
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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) | 1954-04-23 | 1954-10-23 | 1955-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-23 | 1958-10-23 | 1959-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-23 | 1962-10-23 | 1963-04-24 | $7700.00 | Window Closed / Lapsed |