Patent US3193498A successfully refreshed from Google Patents.
US3193498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for treatment of water
Assignee: Societe Grenobloise dEtudes et dApplications Hydrauliques SA SOGREAH
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Filing: 1962-02-05
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Granted: 1965-07-06
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Expires: 1982-02-05
Abstract
No abstract record available.
Inventors
- 👤 Platzer Roger
- 👤 Blain Claude
- 👤 Lara Georges Cohen De
- 👤 Delachanal Michel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:49
CPC Classifications
B; B01; B01J; B01J47/00; B01J47/02; B01J47/04; C; C02; C02F; C02F1/00; C02F1/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
251 words
THE METHOD OF TREATING LIQUIDS WITH ANION AND CATION EXCHANGE MATERIAL WHICH COMPRISES MOVING THE ANION AND CATION EXCHANGE MEATERIAL IN TWO ENDLESS CLOSED CIRCUITS EACH COMPOSED OF A VERTICAL REGENERATION COLUMN FROM THE UPPER END OF WHICH THE RENERATION ION EXCHANGE MATERIAL IS FED TO A SUPPLY PILE AT THE UPPER END OF A VERTICAL COLUMN COMMON TO BOTH CIRCUITS AND INCLUDING A MIXED BED OF ANION AND CATION EXCHANGE MATERIAL THAT IS SITUATED BELOW SAID SUPPLY PILE AND IS CONTINUOUSLY RENEWED FROM SAID SUPPLY PILE, THE SATURATED ANION AND CATION EXCHANGE MATERIAL PASSING FROM THE BOTTOM OF SAID MIXED BED BEING SEPARATED AND FED INTO THE BOTTOM ENDS OF THE REGENERATION COLUMNS IN THEIR ASSOCIATED ENDLESS CLOSED CIRCUITS, INTRODUCING RINSING LIQUID INTO THE UPPER END OF THE REGENERATION COLUMN IN EACH CIRCUIT TO ENABLE SUCH LIQUID TO FLOW DOWNWARDLY INCOUNTERFLOW RELATION TO THE UPWARDLY MOVING ION EXCHANGE MATERIAL THEREIN, INTRODUCING REGENEATION LIQUID INTO THE REGENERATION COLUMN IN EACH CIRCUIT AT A POINT BELOW THE UPPER END THEREOF TO ENABLE SUCH LIQUID TO FLOW DOWNWARDLY IN COUNTERFLOW RELATION TO THE UPWARDLY MOVING ION EXCHANGE MATERIAL THEREIN, INTRODUCING THE LIQUID TO BE TREATED INTO THE BOTTOM END OF SAID COMMON COLUMN BELOW SAID MIXED BED AND FORCING SUCH LIQUID UP THROUGH THE LATTER IN COUNTERFLOW RELATION TO THE DOWNWARDLY MOVING ION EXCHANGE MATERIAL IN SAID BED, AND WITHDRAWING THE TREATED LIQUID RISING THROUGH SUCH MIXED BED AT THE TOP OF THE LATTER AND BELOW SAID SUPPLY PILE OF REGENERATED EXCHANGE MATERIAL.
Claim 2
Independent Claim
251 words
THE METHOD OF TREATING LIQUIDS WITH ANION AND CATION EXCHANGE MATERIAL WHICH COMPRISES MOVING THE ANION AND CATION EXCHANGE MEATERIAL IN TWO ENDLESS CLOSED CIRCUITS EACH COMPOSED OF A VERTICAL REGENERATION COLUMN FROM THE UPPER END OF WHICH THE RENERATION ION EXCHANGE MATERIAL IS FED TO A SUPPLY PILE AT THE UPPER END OF A VERTICAL COLUMN COMMON TO BOTH CIRCUITS AND INCLUDING A MIXED BED OF ANION AND CATION EXCHANGE MATERIAL THAT IS SITUATED BELOW SAID SUPPLY PILE AND IS CONTINUOUSLY RENEWED FROM SAID SUPPLY PILE, THE SATURATED ANION AND CATION EXCHANGE MATERIAL PASSING FROM THE BOTTOM OF SAID MIXED BED BEING SEPARATED AND FED INTO THE BOTTOM ENDS OF THE REGENERATION COLUMNS IN THEIR ASSOCIATED ENDLESS CLOSED CIRCUITS, INTRODUCING RINSING LIQUID INTO THE UPPER END OF THE REGENERATION COLUMN IN EACH CIRCUIT TO ENABLE SUCH LIQUID TO FLOW DOWNWARDLY INCOUNTERFLOW RELATION TO THE UPWARDLY MOVING ION EXCHANGE MATERIAL THEREIN, INTRODUCING REGENEATION LIQUID INTO THE REGENERATION COLUMN IN EACH CIRCUIT AT A POINT BELOW THE UPPER END THEREOF TO ENABLE SUCH LIQUID TO FLOW DOWNWARDLY IN COUNTERFLOW RELATION TO THE UPWARDLY MOVING ION EXCHANGE MATERIAL THEREIN, INTRODUCING THE LIQUID TO BE TREATED INTO THE BOTTOM END OF SAID COMMON COLUMN BELOW SAID MIXED BED AND FORCING SUCH LIQUID UP THROUGH THE LATTER IN COUNTERFLOW RELATION TO THE DOWNWARDLY MOVING ION EXCHANGE MATERIAL IN SAID BED, AND WITHDRAWING THE TREATED LIQUID RISING THROUGH SUCH MIXED BED AT THE TOP OF THE LATTER AND BELOW SAID SUPPLY PILE OF REGENERATED EXCHANGE MATERIAL.
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) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |