US3074864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of and apparatus for demineralizing raw water
Assignee: General Electric Co
•
Filing: 1959-04-21
•
Granted: 1963-01-22
•
Expires: 1979-04-21
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Gaysowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:51
CPC Classifications
B; B01; B01J; B01J47/00; B01J47/02; B01J47/06; B01J47/08; C; C02; C02F; C02F1/00; C02F1/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
THE METHOD OF DEMINERALIZING RAW WATER CONTAINING DISSOLVED METAL SALTS, COMPRISING PASSING THE RAW WATER THROUGH A FIRST BED OF CATION EXCHANGE RESIN AND THEN THROUGH A SECOND BED OF ANION EXCHANGE RESIN THAT ARE SEPARATE AND DISTINCT WITH RESPECT TO EACH OTHER AND BOTH CONTAINED IN AN INNER COMPARTMENT OF AN ELECTROLYTIC CELL AND SEPARATED BY A FIRST ION PERMEABLE MEMBRANE FROM A BODY OF ANOLYTE AND SEPARATED BY A SECOND ION PERMEABLE MEMBRANE FROM A BODY OF CATHOLYTE, WHEREBY THE RAW WATER IS DEMINERALIZED WITH CORRESPONDING DEGENERATION OF THE RESINS IN SAID BEDS, REGENERATING ELECTRICALLY AT A FIRST RATE THE ANION EXCHANGE RESIN IN SAID SECOND BED, AND SELECTIVELY REGENERATING ELECTRICALLY RESPECTIVELY AT SECOND AND THIRD RATES THE CATION EXCHANGE RESIN IN SAID FIRST BED, WHEREIN SAID SECOND AND THIRD RATES ARE RESPECTIVELY HIGHER
Claim 2
Independent Claim
136 words
THE METHOD OF DEMINERALIZING RAW WATER CONTAINING DISSOLVED METAL SALTS, COMPRISING PASSING THE RAW WATER THROUGH A FIRST BED OF CATION EXCHANGE RESIN AND THEN THROUGH A SECOND BED OF ANION EXCHANGE RESIN THAT ARE SEPARATE AND DISTINCT WITH RESPECT TO EACH OTHER AND BOTH CONTAINED IN AN INNER COMPARTMENT OF AN ELECTROLYTIC CELL AND SEPARATED BY A FIRST ION PERMEABLE MEMBRANE FROM A BODY OF ANOLYTE AND SEPARATED BY A SECOND ION PERMEABLE MEMBRANE FROM A BODY OF CATHOLYTE, WHEREBY THE RAW WATER IS DEMINERALIZED WITH CORRESPONDING DEGENERATION OF THE RESINS IN SAID BEDS, REGENERATING ELECTRICALLY AT A FIRST RATE THE ANION EXCHANGE RESIN IN SAID SECOND BED, AND SELECTIVELY REGENERATING ELECTRICALLY RESPECTIVELY AT SECOND AND THIRD RATES THE CATION EXCHANGE RESIN IN SAID FIRST BED, WHEREIN SAID SECOND AND THIRD RATES ARE RESPECTIVELY HIGHER
References Cited (Backward Citations)
US2058761A
Cited
US1956741A
Cited
US2607718A
Cited
GB675253A
Cited
GB702316A
Cited
US2825666A
Cited
US2906684A
Cited
US2980598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |