US3192142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and device for preparing drinking water from insalubrious crude water
Assignee: DULAC FRANCOIS MARIE JACQUES
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Filing: 1960-06-14
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Granted: 1965-06-29
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Expires: 1980-06-14
Abstract
No abstract record available.
Inventors
- 👤 Vellas Jean Leon Justin
- 👤 Puig Lorenzo Casanovas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:46
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/4606; C02F1/461; C02F1/463; C02F1/28; C02F1/283; C02F2001/007; C02F2201/00; C02F2201/46; C02F2201/461; C02F2201/46105; C02F2201/4612; C02F2201/46125; C02F2201/4613
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
THE METHOD OF PURIFYING CRUDE WATER IN A CIRCULATION SYSTEM TO PRODUCE WATER SUITABLE FOR DRINKING, COMPRISING THE SUCCESSIVE STEPS OF PASSING THE CIRCULATING CRUDE WATER IN CONTACT WITH ELECTRODE MEANS SUPPLIED WITH A PULSATING LOW-VOLTAGE DIRECT CURRENT TO INITIATE COAGULATION OF THE IMPURITIES CONTAINED THEREIN; CONTINUOUSLY CIRCULATING THE ELECTRICALLY-TREATED WATER IN A CLOSED PRECIPITATING TANK FULL OF WATER AND HAVING A CAPACITY AT LEAST EQUAL TO THE HOURLY DELIVERY RATE OF THE CRUDE WATER TO EFFECT FLOCCULATION AND SEPARATION OF THE IMPURITIES CONTAINED IN THE WATER, FILTERING THE WATER; CHARGING THE FILTERED WATER WITH A SMALL AMOUNT OF SILVER IONS BY MEANS OF A LOW VOLTAGE PULSATING CURRENT ACTING AT LEAST ONE SILVER ANODE; AND INTRODUCING THE IONIZED WATER INTO A SETTLING TANK HAVING A CAPACITY AT LEAST EQUAL TO ONE FOURTH OF THE HOURLY DELIVERY RATE OF THE CRUDE WATER AND CAUSING
Claim 2
Independent Claim
144 words
THE METHOD OF PURIFYING CRUDE WATER IN A CIRCULATION SYSTEM TO PRODUCE WATER SUITABLE FOR DRINKING, COMPRISING THE SUCCESSIVE STEPS OF PASSING THE CIRCULATING CRUDE WATER IN CONTACT WITH ELECTRODE MEANS SUPPLIED WITH A PULSATING LOW-VOLTAGE DIRECT CURRENT TO INITIATE COAGULATION OF THE IMPURITIES CONTAINED THEREIN; CONTINUOUSLY CIRCULATING THE ELECTRICALLY-TREATED WATER IN A CLOSED PRECIPITATING TANK FULL OF WATER AND HAVING A CAPACITY AT LEAST EQUAL TO THE HOURLY DELIVERY RATE OF THE CRUDE WATER TO EFFECT FLOCCULATION AND SEPARATION OF THE IMPURITIES CONTAINED IN THE WATER, FILTERING THE WATER; CHARGING THE FILTERED WATER WITH A SMALL AMOUNT OF SILVER IONS BY MEANS OF A LOW VOLTAGE PULSATING CURRENT ACTING AT LEAST ONE SILVER ANODE; AND INTRODUCING THE IONIZED WATER INTO A SETTLING TANK HAVING A CAPACITY AT LEAST EQUAL TO ONE FOURTH OF THE HOURLY DELIVERY RATE OF THE CRUDE WATER AND CAUSING
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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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |