Patent US2735779A successfully refreshed from Google Patents.
US2735779A
Expired / Lapsed
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Method of dehydration by freezing
Assignee: —
•
Filing: —
•
Granted: 1956-02-21
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Expires: 1973-02-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:22
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/90; A23B2/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN A METHOD OF DEHYDRATING A LIQUID COMPOSITION CONTAINING A RELATIVELY LOW SOLIDS CONTENT, THE STEPS COMPRISING FREEZING A PORTION OF THE WATER IN THE COMPOSITION TO FORM ICE CRYSTALS, AGITATING THE COMPOSITION AND ICE CRYSTALS, SEGREGATING FROM THE PARTIALLY DEHYDRATED LIQUID ICE CRYSTALS BEYOND A PREDETERMINED SIZE, SUCCESSIVELY AND BY APPLICATION OF PROGRESSIVELY LOWER TEMPERATURES FREEZING ADDITIONAL PORTIONS OF THE WATER FROM THE PARTIALLY DEHYDRATED RESULTANT LIQUID, AND MIXING BACK INTO THE SO-CONCENTRATED LIQUID AT LEAST A PORTION OF UNDISSOLVED SOLIDS, AND APPLYING A VIBRATORY ACTION ON THE LIQUID AFTER EACH FREEZING OPERATION THEREBY SEPARATING ICE CRYSTALS OF PREDETERMINED SIZE FROM THE LIQUID.
Claim 2
Dependent Claim
104 words
IN A METHOD OF DEHYDRATING A LIQUID COMPOSITION CONTAINING A RELATIVELY LOW SOLIDS CONTENT, THE STEPS COMPRISING FREEZING A PORTION OF THE WATER IN THE COMPOSITION TO FORM ICE CRYSTALS, AGITATING THE COMPOSITION AND ICE CRYSTALS, SEGREGATING FROM THE PARTIALLY DEHYDRATED LIQUID ICE CRYSTALS BEYOND A PREDETERMINED SIZE, SUCCESSIVELY AND BY APPLICATION OF PROGRESSIVELY LOWER TEMPERATURES FREEZING ADDITIONAL PORTIONS OF THE WATER FROM THE PARTIALLY DEHYDRATED RESULTANT LIQUID, AND MIXING BACK INTO THE SO-CONCENTRATED LIQUID AT LEAST A PORTION OF UNDISSOLVED SOLIDS, AND APPLYING A VIBRATORY ACTION ON THE LIQUID AFTER EACH FREEZING OPERATION THEREBY SEPARATING ICE CRYSTALS OF PREDETERMINED SIZE FROM THE LIQUID.
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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) | 1959-02-20 | 1959-08-22 | 1960-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-20 | 1963-08-22 | 1964-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-20 | 1967-08-22 | 1968-02-21 | $7700.00 | Window Closed / Lapsed |