Patent US3943044A successfully refreshed from Google Patents.
US3943044A
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Method for treating sewage water
Assignee: Eltech Systems Corp
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Filing: 1973-11-30
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Granted: 1976-03-09
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Expires: 1993-11-30
Abstract
Abstract A system and apparatus for disinfecting sewage water and removing suspended solids therefrom by in-situ treatment with chemical agents and gases, each produced electrolytically, comprising a treatment chamber, disinfecting and solids conveying means including at least one pair of electrodes disposed in the chamber, solids removal means associated with the chamber, a source of aqueous alkali metal halide solution and optionally an ultraviolet light ray source and solids collection means.
Inventors
- 👤 Robert W. Fenn, III
- 👤 Kevin J. O'Leary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:53
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/467; C02F1/4672; C02F1/4674; C02F1/465; C02F1/001; C02F1/30; C02F1/32; C02F1/46104; C02F1/46109; C02F2001/46133; C02F2201/00; C02F2201/001; C02F2201/46; C02F2201/461; C02F2201/46105; C02F2201/4618; C02F2303/00; C02F2303/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
97 words
The process for treating sewage water which comprises: A. providing a sewage-containing alkali metal halide solution to an upwardly tapered cell chamber ending in a solids discharge outlet and having submerged dimensionally stable electrodes disposed therein; B. agitating and disintegrating solids contained in said solution; C. passing a direct electrolyzing current between opposed dimensionally stable anodes and cathodes in said solution, whereby said solution and solids are disinfected and said solids float to the top of the chamber; D. removing solids and entrained solution through the solids discharge outlet; and E. discharging treated solution from said chamber.
Claim 2
Dependent Claim
97 words
The process for treating sewage water which comprises: A. providing a sewage-containing alkali metal halide solution to an upwardly tapered cell chamber ending in a solids discharge outlet and having submerged dimensionally stable electrodes disposed therein; B. agitating and disintegrating solids contained in said solution; C. passing a direct electrolyzing current between opposed dimensionally stable anodes and cathodes in said solution, whereby said solution and solids are disinfected and said solids float to the top of the chamber; D. removing solids and entrained solution through the solids discharge outlet; and E. discharging treated solution from said chamber.
Claim 3
Dependent Claim
27 words
A process as in claim 1 wherein solids and treated solution are removed and discharged by the addition to the chamber of further solution to be treated.
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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) | 1979-03-09 | 1979-09-08 | 1980-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-09 | 1983-09-08 | 1984-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-09 | 1987-09-08 | 1988-03-09 | $7700.00 | Window Closed / Lapsed |