Patent US3926771A successfully refreshed from Google Patents.
US3926771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for electrosanitizing waste water
Assignee: Eltech Systems Ltd
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Filing: 1974-10-03
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Granted: 1975-12-16
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Expires: 1994-10-03
Abstract
Abstract A process for oxidizing and disinfecting waste water comprises providing an alkali metal chloride-containing waste water to a first container wherein it is agitated and macerated and electrolyzing at least a portion of said waste water to produce chlorine therein, followed by transfer to a second container wherein it is further agitated and, optionally, electrolyzed, prior to discharge. An apparatus suited to conducting the process is described.
Inventors
- 👤 Donald F Lieb
- 👤 Neil W Stillman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:22
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/467; C02F1/4672; C02F1/4674; C02F1/46104; C02F1/46109; C02F2001/46128; C02F2001/46152; C02F2103/00; C02F2103/005; C02F2201/00; C02F2201/46; C02F2201/461; C02F2201/46105; C02F2201/4611; C02F2303/00; C02F2303/04
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
14 words
A COMBINATION AGITATOR AND MACERATOR FOR ANY SOLIDS SUSPENDED IN SAID WASTE WATER AND
Claim 2
Dependent Claim
14 words
A COMBINATION AGITATOR AND MACERATOR FOR ANY SOLIDS SUSPENDED IN SAID WASTE WATER AND
Claim 3
Independent Claim
30 words
AN APPARATUS FOR THE TREATMENT OF WASTE WATER COMPRISING: A. A PRIMARY TREATMENT CONTAINER ADAPTED FOR RECEIPT OF WASTE WATER AND AN ALKALI METAL CHLORIDE AND HAVING SEPARATELY DISPOSED THEREIN,
Claim 4
Independent Claim
30 words
AN APPARATUS FOR THE TREATMENT OF WASTE WATER COMPRISING: A. A PRIMARY TREATMENT CONTAINER ADAPTED FOR RECEIPT OF WASTE WATER AND AN ALKALI METAL CHLORIDE AND HAVING SEPARATELY DISPOSED THEREIN,
Claim 5
Dependent Claim
22 words
An apparatus as in claim 1 wherein said primary and secondary containers are formed in a single vessel divided by a partition.
Claim 6
Dependent Claim
78 words
an electrode pack containing at least one horizontally disposed anode and cathode and connected to a direct current source external said container; b. a discrete secondary treatment container having disposed therein an agitator, an electrode pack containing at least one horizontally disposed anode and cathode connected to a direct current source external said container, and an outlet for treated water; and c. fluid communication means for transferring partially-treated waste water from said primary container to said secondary container.
Claim 7
Dependent Claim
78 words
an electrode pack containing at least one horizontally disposed anode and cathode and connected to a direct current source external said container; b. a discrete secondary treatment container having disposed therein an agitator, an electrode pack containing at least one horizontally disposed anode and cathode connected to a direct current source external said container, and an outlet for treated water; and c. fluid communication means for transferring partially-treated waste water from said primary container to said secondary container.
Claim 8
Dependent Claim
78 words
AN ELECTRODE PACK CONTAINING AT LEAST ONE HORIZONTALLY DISPOSED ANODE AND CATHODE AND CONNECTED TO A DIRECT CURRENT SOURCE EXTERNAL SAID CONTAINER; B. A DISCRETE SECONDARY TREATMENT CONTAINER HAVING DISPOSED THEREIN AN AGITATOR, AN ELECTRODE PACK CONTAINING AT LEAST ONE HORIZONTALLY DISPOSED ANODE AND CATHODE CONNECTED TO A DIRECT CURRENT SOURCE EXTERNAL SAID CONTAINER, AND AN OUTLET FOR TREATED WATER; AND C. FLUID COMMUNICATION MEANS FOR TRANSFERRING PARTIALLYTREATED WASTE WATER FROM SAID PRIMARY CONTAINER TO SAID SECONDARY CONTAINER.
Claim 9
Dependent Claim
78 words
AN ELECTRODE PACK CONTAINING AT LEAST ONE HORIZONTALLY DISPOSED ANODE AND CATHODE AND CONNECTED TO A DIRECT CURRENT SOURCE EXTERNAL SAID CONTAINER; B. A DISCRETE SECONDARY TREATMENT CONTAINER HAVING DISPOSED THEREIN AN AGITATOR, AN ELECTRODE PACK CONTAINING AT LEAST ONE HORIZONTALLY DISPOSED ANODE AND CATHODE CONNECTED TO A DIRECT CURRENT SOURCE EXTERNAL SAID CONTAINER, AND AN OUTLET FOR TREATED WATER; AND C. FLUID COMMUNICATION MEANS FOR TRANSFERRING PARTIALLYTREATED WASTE WATER FROM SAID PRIMARY CONTAINER TO SAID SECONDARY CONTAINER.
Claim 10
Dependent Claim
36 words
An apparatus as in claim 1 wherein said primary and secondary containers are formed in a single vessel divided by a partition and said electrode packs are common to both containers, extending through the partition therebetween.
Claim 11
Dependent Claim
30 words
An apparatus as in claim 1 wherein said electrode packs contain at least a terminal anode, a terminal cathode, and at least one bipolar electrode intermediate said anode and cathode.
Claim 12
Dependent Claim
37 words
An apparatus as in claim 1 wherein said eleCtrode packs contain a pair of terminal anodes, an intermediate cathode and at least one bipolar electrode between at least one of said terminal anodes and the intermediate cathode.
Claim 13
Dependent Claim
31 words
An apparatus as in claim 1 wherein said means for transferring partially-treated waste water comprises an inverted U crossover tube in communication through the tops of the primary and secondary containers.
Claim 14
Dependent Claim
19 words
An apparatus as in claim 1 wherein said electrode packs are composed of dimensionally stable electrodes in sheet form.
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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) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |