US3398076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the electropurification of water
Assignee: Hazeltine Research Inc
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Filing: 1963-03-21
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Granted: 1968-08-20
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Expires: 1983-03-21
Abstract
No abstract record available.
Inventors
- 👤 Anthony C Suleski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:51
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/4604; C02F1/22; C02F2103/00; C02F2103/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
THE METHOD OF PURIFYING WATER COMPRISING: FREEZING A QUANTITY OF IMPURE WATER INTO A BLOCK OF ICE; APPLYING A D-C POTENTIAL BETWEEN TWO SEPARATED SURFACE AREAS OF SAID BLOC OF ICE SO AS TO CAUSE IMPURITIES TO CONGREGATE NEAR SAID SURFACE AREAS; CRUSHING SAID PORTIONS IN WHICH IMPURITIES HAVE CONGREGATED AND USING SAID CRUSHED PORTIONS TO COOL ADDITIONAL WATER TO BE PURIFIED; CRUSHING THE REMAINING PORTION OF SAID ICE AND USING SAID CRUSHED REMAINING PORTIONS TO COOL ADDITIONAL WATER TO BE PURIFIED; AND RECOVERING THE PURIFIED WATER PRODUCED BY THE MELTING OF SAID REMAINING PORTION OF ICE.
Claim 2
Independent Claim
97 words
THE METHOD OF PURIFYING WATER COMPRISING: FREEZING A QUANTITY OF IMPURE WATER INTO A BLOCK OF ICE; APPLYING A D-C POTENTIAL BETWEEN TWO SEPARATED SURFACE AREAS OF SAID BLOC OF ICE SO AS TO CAUSE IMPURITIES TO CONGREGATE NEAR SAID SURFACE AREAS; CRUSHING SAID PORTIONS IN WHICH IMPURITIES HAVE CONGREGATED AND USING SAID CRUSHED PORTIONS TO COOL ADDITIONAL WATER TO BE PURIFIED; CRUSHING THE REMAINING PORTION OF SAID ICE AND USING SAID CRUSHED REMAINING PORTIONS TO COOL ADDITIONAL WATER TO BE PURIFIED; AND RECOVERING THE PURIFIED WATER PRODUCED BY THE MELTING OF SAID REMAINING PORTION OF ICE.
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) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |