US2794777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic deionization
Assignee: Clayton Manufacturing Co
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Filing: 1956-08-27
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Granted: 1957-06-04
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Expires: 1976-08-27
Abstract
No abstract record available.
Inventors
- 👤 Ralph G Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:17
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/42; B01D61/44; B01D61/46; B01D61/50; B01D2311/00; B01D2311/26; B01D2311/2623
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
IN AN ELECTROLYTIC PROCESS FOR DEIONIZING WATER CONTAINING DISSOLVED ELECTROLYTES IN AN ELECTROLYTIC CELL HAVING A TREATING COMPARTMENT BOUNDED ON ONE SIDE BY A DIAPHRAGM OF ANION EXCHANGE MATERIAL AND ON THE OTHER SIDE BY A DIAPHRAGM OF CATION EXCHANGE MATERIAL, THE STEPS COMPRISING: FLOWING THE SOLUTION TO BE DEIONIZED THROUGH THE SAID TREATING COMPARTMENT IN COTACT WITH ONE SIDE OF EACH OF SAID DIAPHRAGMS, MAINTAINING CONDUCTING SOLUTIONS IN CONTACT WITH THE OPPOSITE SIDES OF SAID DIAPHRAGMS, PASSING A DIRECT ELECTRIC CURRENT FROM ONE CONDUCTING SOLUTION THROUGH SAID DIAPHRAGMS AND SOLUTION TO BE DEIONIZED TO THE SECOND CONDUCTING SOLUTION TO PARTIALLY DEIONIZE SAID SOLUTION AND PROVIDE AN ACID CONCENTRATION OF NOT MORE THAN ABOUT 1% IN THE CONDUCTING SOLUTION IN CONTACT WITH THE DIAPHARAGM OF ANION EXCHANGE MATERIAL AND AN ALKALI CONCENTRATION OF NOT MORE THAN ABOUT 1% IN THE CONDUCTING SOLUTION IN CONTACT WITH THE DIAPHRAGM OF CATION EXCHANGE MATERIAL, FLOWING SAID PARTIALLY DEIONIZED SOLUTION FROM SAID TREATING COMPARTMENT IN CONTACT WITH PARTICLES OF ANION EXCHANGE MATERIAL AND CATION EXCHANGE MATERIAL, AND EMPLOYING AT LEAST ONE OF SAID CONDUCTING SOLUTIONS TO REGENERATE AT LEAST THE PARTICLES OF ONE OF SAID ANION AND CATION EXCHANGE MATERIALS.
Claim 2
Dependent Claim
196 words
IN AN ELECTROLYTIC PROCESS FOR DEIONIZING WATER CONTAINING DISSOLVED ELECTROLYTES IN AN ELECTROLYTIC CELL HAVING A TREATING COMPARTMENT BOUNDED ON ONE SIDE BY A DIAPHRAGM OF ANION EXCHANGE MATERIAL AND ON THE OTHER SIDE BY A DIAPHRAGM OF CATION EXCHANGE MATERIAL, THE STEPS COMPRISING: FLOWING THE SOLUTION TO BE DEIONIZED THROUGH THE SAID TREATING COMPARTMENT IN COTACT WITH ONE SIDE OF EACH OF SAID DIAPHRAGMS, MAINTAINING CONDUCTING SOLUTIONS IN CONTACT WITH THE OPPOSITE SIDES OF SAID DIAPHRAGMS, PASSING A DIRECT ELECTRIC CURRENT FROM ONE CONDUCTING SOLUTION THROUGH SAID DIAPHRAGMS AND SOLUTION TO BE DEIONIZED TO THE SECOND CONDUCTING SOLUTION TO PARTIALLY DEIONIZE SAID SOLUTION AND PROVIDE AN ACID CONCENTRATION OF NOT MORE THAN ABOUT 1% IN THE CONDUCTING SOLUTION IN CONTACT WITH THE DIAPHARAGM OF ANION EXCHANGE MATERIAL AND AN ALKALI CONCENTRATION OF NOT MORE THAN ABOUT 1% IN THE CONDUCTING SOLUTION IN CONTACT WITH THE DIAPHRAGM OF CATION EXCHANGE MATERIAL, FLOWING SAID PARTIALLY DEIONIZED SOLUTION FROM SAID TREATING COMPARTMENT IN CONTACT WITH PARTICLES OF ANION EXCHANGE MATERIAL AND CATION EXCHANGE MATERIAL, AND EMPLOYING AT LEAST ONE OF SAID CONDUCTING SOLUTIONS TO REGENERATE AT LEAST THE PARTICLES OF ONE OF SAID ANION AND CATION EXCHANGE MATERIALS.
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) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |