US3247106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preconditioning process for the removal of impurities from water
Assignee: Johns Manville Corp
•
Filing: 1963-11-12
•
Granted: 1966-04-19
•
Expires: 1983-11-12
Abstract
No abstract record available.
Inventors
- 👤 Sopoci John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:17
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/52; C02F1/54; B; B01; B01D; B01D21/00; B01D21/01; B01D37/00; B01D37/02; B01D37/03; B01J; B01J41/00; B01J41/04; B01J47/00; B01J47/011; C02F1/5236
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A METHOD OF REMOVING IMPURITIES, SUCH AS TURBIDITY AND COLOR, FROM WATER BY PRECONDITIONING THE WATER COMPRISING, PREPARING A CONCENTRATED SLURRY OF 0.001 TO 3200 P.P.M. BRANCH CHAIN ORGANIC CATIONIC POLYELECTROLYTE, 45125,000 P.P.M. FLOC FORMER SELECTED FROM THE GROUP CONSISTING OF SALTS OF TRIVALENT METALS, SALTS OF TETRAVALENT METALS, AND MIXTURES THEREOF, AND 500 TO 125,000 P.P.M. FILTER AID UNDER CONDITIONS TO EFFECT A COATING OF ESSENTIALLY ALL THE FLOC FORMER UPON THE FILTER AID, DILUTING THE CONCENTTRATED SLURRY INTO THE WATER TO BE TREATED TO PROVIDE 10 TO 2000 P.P.M. OF THE TREATING MATERIAL, DETAINING SAID DILUTED SLURRY UNDER AGITATION TO INSURE COMPLETE DISRIBUTION OF THE INGREDIENTS AND INCORPORATION OF THE IMPURITIES OF SAID WATER WITH SAID COATING ON SAID FILTER AID, AND PASSING SAID COATED FILTER AID-CONTAINING WATER THROUGH A FILTR AID FILTER MEDIUM.
Claim 2
Independent Claim
136 words
A METHOD OF REMOVING IMPURITIES, SUCH AS TURBIDITY AND COLOR, FROM WATER BY PRECONDITIONING THE WATER COMPRISING, PREPARING A CONCENTRATED SLURRY OF 0.001 TO 3200 P.P.M. BRANCH CHAIN ORGANIC CATIONIC POLYELECTROLYTE, 45125,000 P.P.M. FLOC FORMER SELECTED FROM THE GROUP CONSISTING OF SALTS OF TRIVALENT METALS, SALTS OF TETRAVALENT METALS, AND MIXTURES THEREOF, AND 500 TO 125,000 P.P.M. FILTER AID UNDER CONDITIONS TO EFFECT A COATING OF ESSENTIALLY ALL THE FLOC FORMER UPON THE FILTER AID, DILUTING THE CONCENTTRATED SLURRY INTO THE WATER TO BE TREATED TO PROVIDE 10 TO 2000 P.P.M. OF THE TREATING MATERIAL, DETAINING SAID DILUTED SLURRY UNDER AGITATION TO INSURE COMPLETE DISRIBUTION OF THE INGREDIENTS AND INCORPORATION OF THE IMPURITIES OF SAID WATER WITH SAID COATING ON SAID FILTER AID, AND PASSING SAID COATED FILTER AID-CONTAINING WATER THROUGH A FILTR AID FILTER MEDIUM.
References Cited (Backward Citations)
CA607440A
Cited
US2236930A
Cited
US2468189A
Cited
US2995512A
Cited
US2764512A
Cited
US2941942A
Cited
GB826770A
Cited
US3142638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |