US3210272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of drying particulate solids
Assignee: Dow Chemical Co
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Filing: 1963-04-25
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Granted: 1965-10-05
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Expires: 1983-04-25
Abstract
No abstract record available.
Inventors
- 👤 Gerald L Foster
- 👤 Alfred R Hendrickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:52
CPC Classifications
F; F26; F26B; F26B5/00; F26B5/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A METHOD OF REMOVING A LIQUID FROM PARTICULATE SOLIDS WITH WHICH IT IS IN INTIMATE ASSOCIATION WHICH COMPRISES: ADMIXING WITH THE INTIMATE ASSOCIATION OF LIQUID AND SOLIDS A SORBENT GRANULAR MATERIAL HAVING GREATER SORBENCY FOR THE LIQUID PRESENT IN SAID INTIMATE ASSOCIATION THAN DO THE PARTICULATE SOLIDS AND WHICH IS SUBSTANTIALLY FREE OF LIQUID, IN AN AMOUNT SUFFICIENT TO ABSORB AND ADSORB SUBSTANTIALLY ALL OF THE LIQUID PRESENT IN SAID INTIMATE ASSOCIATION, AND HAVING A PARTICLE SIZE DIFFERENTIATION FROM THAT OF THE PARTICULATE SOLIDS PRESENT IN SAID INTIMATE ASSOCIATION OF AT LEAST ABOUT1 SIEVE MESH SIZE, ACCORDING TO THE UNITED STATES BUREAU OF STANDARDS SIEVE SERIES; AGITATING THE RESULTING MIXTURE UNTIL SAID SORBENT MATERIAL HAS COME IN CONTACT WITH SUBSTANTIALLY ALL THE LIQUID PRESENT; AND SEPARATING THE SORBENT MATERIAL TOGETHER WITH THE LIQUID ADSORBED AND ADSORBED THEREON AND THEREIN FROM THE PARTICULATE SOLIDS OF SAID INTIMATE ASSOCIATION.
Claim 2
Independent Claim
147 words
A METHOD OF REMOVING A LIQUID FROM PARTICULATE SOLIDS WITH WHICH IT IS IN INTIMATE ASSOCIATION WHICH COMPRISES: ADMIXING WITH THE INTIMATE ASSOCIATION OF LIQUID AND SOLIDS A SORBENT GRANULAR MATERIAL HAVING GREATER SORBENCY FOR THE LIQUID PRESENT IN SAID INTIMATE ASSOCIATION THAN DO THE PARTICULATE SOLIDS AND WHICH IS SUBSTANTIALLY FREE OF LIQUID, IN AN AMOUNT SUFFICIENT TO ABSORB AND ADSORB SUBSTANTIALLY ALL OF THE LIQUID PRESENT IN SAID INTIMATE ASSOCIATION, AND HAVING A PARTICLE SIZE DIFFERENTIATION FROM THAT OF THE PARTICULATE SOLIDS PRESENT IN SAID INTIMATE ASSOCIATION OF AT LEAST ABOUT1 SIEVE MESH SIZE, ACCORDING TO THE UNITED STATES BUREAU OF STANDARDS SIEVE SERIES; AGITATING THE RESULTING MIXTURE UNTIL SAID SORBENT MATERIAL HAS COME IN CONTACT WITH SUBSTANTIALLY ALL THE LIQUID PRESENT; AND SEPARATING THE SORBENT MATERIAL TOGETHER WITH THE LIQUID ADSORBED AND ADSORBED THEREON AND THEREIN FROM THE PARTICULATE SOLIDS OF SAID INTIMATE ASSOCIATION.
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 |