US3317424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Demineralization of polar liquids, especially water
Assignee: ChampionX LLC
•
Filing: 1963-03-01
•
Granted: 1967-05-02
•
Expires: 1983-03-01
Abstract
No abstract record available.
Inventors
- 👤 Kenneth A Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:13
CPC Classifications
B; B01; B01J; B01J39/00; B01J39/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A PROCESS FOR THE DEMINERALIZATION OF WATER WHICH COMPRISES BRINGING WATER CONTAINING DISSOLVED INORGANIC SALTS INTO CONTRACT WITH A CATION EXCHANGE RESIN IN THE HYDROGEN FORM, AND THEREBY EXCHANGING THE HYDROGEN IONS OF SAID CATION EXCHANGE RESIN FOR THE CITIONS OF SAID SALTS AND FORMING THE ACIDS OF THE ANIONS OF SAID SALTS; AND BRINGING THE WATER CONTAINING SAID ACIDS INTO CONTACT WITH A STRONGLY BASIC ANION EXCHANGE RESIN IN THE SULFATE FORM. A STRONGLY BASIC ANION EXCHANGE RESIN IN THE SULFATE FORM, AND THEREBY SORBING THE ANIONS OF SAID ACIDS ON SAID ANION EXCHANGE RESIN BY A CHEMICAL REACTION INCLUDING CONVERSION OF EXCHANGABLE SULFATE GROUPS ON SAID RESIN TO BISULFATE GROUPS.
Claim 2
Dependent Claim
112 words
A PROCESS FOR THE DEMINERALIZATION OF WATER WHICH COMPRISES BRINGING WATER CONTAINING DISSOLVED INORGANIC SALTS INTO CONTRACT WITH A CATION EXCHANGE RESIN IN THE HYDROGEN FORM, AND THEREBY EXCHANGING THE HYDROGEN IONS OF SAID CATION EXCHANGE RESIN FOR THE CITIONS OF SAID SALTS AND FORMING THE ACIDS OF THE ANIONS OF SAID SALTS; AND BRINGING THE WATER CONTAINING SAID ACIDS INTO CONTACT WITH A STRONGLY BASIC ANION EXCHANGE RESIN IN THE SULFATE FORM. A STRONGLY BASIC ANION EXCHANGE RESIN IN THE SULFATE FORM, AND THEREBY SORBING THE ANIONS OF SAID ACIDS ON SAID ANION EXCHANGE RESIN BY A CHEMICAL REACTION INCLUDING CONVERSION OF EXCHANGABLE SULFATE GROUPS ON SAID RESIN TO BISULFATE GROUPS.
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) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |