Patent US3936376A successfully refreshed from Google Patents.
US3936376A
Expired / Lapsed
US
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Method for collecting scale formations in water pipes
Assignee: Key Ii Industries
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Filing: 1975-04-09
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Granted: 1976-02-03
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Expires: 1995-04-09
Abstract
Abstract Conglomerations of charged ions of minerals in a water pipe system resulting from subjecting the water to an alternating electric field are effectively removed from the water flow path by providing first and second screens. The first screen is located normal to the flow path so that the water flows through the screen. The second screen is located in a chamber connected laterally to a water pipe section carrying the water flow upstream of the first screen. The first and second screens are charged positively and negatively respectively so that the first screen will repel conglomerations of minerals and the second screen will attract the same to collect them in the chamber.
Inventors
- 👤 Philip Centineo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:30
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/48; B; B03; B03C; B03C5/00; B03C5/02; B03C5/022; B03C5/026; C02F2303/00; C02F2303/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A method of inhibiting scale in flowing water and collecting the same comprising, in combination, the steps of: a. subjecting said flowing water to an alternating square wave electric field to cause conglomerations of charged ions to be entrained in said flowing water; b. thereafter confining the flowing water to a horizontal flow path; c. positioning a first screen in a vertical plane in said flow path; d. providing a chamber below said flow path in communication with said flow path at a point before the flowing water reaches said screen; e. providing a second screen in an horizontal plane in said chamber; f. charging said first screen with an electrically positive charge so that said conglomerations are repelled by said first screen and thus tend to drift downwardly into said chamber; and, g. charging said second screen with an electrically negative charge to thereby attract said conglomerations for collection in said chamber.
Claim 2
Independent Claim
153 words
A method of inhibiting scale in flowing water and collecting the same comprising, in combination, the steps of: a. subjecting said flowing water to an alternating square wave electric field to cause conglomerations of charged ions to be entrained in said flowing water; b. thereafter confining the flowing water to a horizontal flow path; c. positioning a first screen in a vertical plane in said flow path; d. providing a chamber below said flow path in communication with said flow path at a point before the flowing water reaches said screen; e. providing a second screen in an horizontal plane in said chamber; f. charging said first screen with an electrically positive charge so that said conglomerations are repelled by said first screen and thus tend to drift downwardly into said chamber; and, g. charging said second screen with an electrically negative charge to thereby attract said conglomerations for collection in said chamber.
References Cited (Backward Citations)
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Cited
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Cited
US3398082A
Cited
US3511776A
Cited
US3788473A
Cited
US3703958A
Cited
US3680705A
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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) | 1979-02-02 | 1979-08-04 | 1980-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-02 | 1983-08-04 | 1984-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-02 | 1987-08-04 | 1988-02-03 | $7700.00 | Window Closed / Lapsed |