Patent US4426261A successfully refreshed from Google Patents.
US4426261A
Expired / Lapsed
US
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Method for separating drinking water
Assignee: Individual
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Filing: 1981-12-21
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Granted: 1984-01-17
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Expires: 2001-12-21
Abstract
Abstract An electrolytic cell for electrolytically dividing drinking water for domestic use is provided, which comprises a column-like or hollow bar-like negative electrode centrally located, an annular positive electrode arranged around the negative electrode, an annular negative electrode arranged around the positive electrode, and a membrane arranged between the positive and negative electrodes.
Inventors
- 👤 Tomotsuru Fushihara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:44
CPC Classifications
C; C25; C25B; C25B1/00; C25B1/01; C25B1/14; C25B1/16; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/46104; C02F1/4618; C25B1/22; C25B9/00; C25B9/17; C25B9/19; C02F1/46109; C02F2001/46133; C02F2001/46152; C02F2201/00; C02F2201/002; C02F2201/003; C02F2201/46; C02F2201/461; C02F2201/46105; C02F2201/46115
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
154 words
A method for separating drinking water into acidic and alkaline components comprising: introducing water into an electrolytic cell having, a centrally located column-like negative electrode; an annular positive electrode positioned around said negative column-like electrode; an annular negative electrode positioned around said annular positive electrode; a membrane generally U-shaped in cross-section having two concentric side walls and a top wall extending therebetween, said membrane enclosing said positive electrode with one of said side walls being arranged between said positive electrode and said column-like negative electrode and the other of said side walls being arranged between said positive electrode and said annular negative electrode forming an annular volume surrounding said positive electrode, an inner annular space between said membrane and said column-like negative electrode, and an outer annular space between said membrane and said annular negative electrode; removing acidic water from said annular volume; and removing alkaline water from said inner and outer annular spaces.
Claim 2
Independent Claim
154 words
A method for separating drinking water into acidic and alkaline components comprising: introducing water into an electrolytic cell having, a centrally located column-like negative electrode; an annular positive electrode positioned around said negative column-like electrode; an annular negative electrode positioned around said annular positive electrode; a membrane generally U-shaped in cross-section having two concentric side walls and a top wall extending therebetween, said membrane enclosing said positive electrode with one of said side walls being arranged between said positive electrode and said column-like negative electrode and the other of said side walls being arranged between said positive electrode and said annular negative electrode forming an annular volume surrounding said positive electrode, an inner annular space between said membrane and said column-like negative electrode, and an outer annular space between said membrane and said annular negative electrode; removing acidic water from said annular volume; and removing alkaline water from said inner and outer annular spaces.
Claim 3
Dependent Claim
16 words
A method as in claim 1, wherein said electrolytic cell is attached to a water faucet.
References Cited (Backward Citations)
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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) | 1987-01-16 | 1987-07-18 | 1988-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-16 | 1991-07-18 | 1992-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-16 | 1995-07-18 | 1996-01-17 | $7700.00 | Window Closed / Lapsed |