US3871989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for flocculation of dissolved substances
Assignee: BROOKSIDE WATER TREATMENT Inc A CORP OF
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Filing: 1974-02-14
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Granted: 1975-03-18
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Expires: 1994-02-14
Abstract
Abstract Rapid flocculation of particles contained within fluids, such as solids dissolved in water, is caused by passing the fluid first through an electrostatic treater and subsequently through an electrolytic treater so that the fluid exposed to an electrostatic field in the first treater is then subjected to electrolysis in the second treater. No plating out of particles on the electrodes of the second treater occurs because of the residual effects on the fluid of the electrostatic treater. Alternative embodiments are adapted for pipeline connection and settling pond flotation respectively.
Inventors
- 👤 Arthur S King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:18
CPC Classifications
B; B05; B05C; B05C5/00; B01; B01D; B01D21/00; B01D21/0009; B01D43/00; C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/463; C02F1/48; C02F1/001; C02F1/46104; C02F2001/007; C02F2201/00; C02F2201/46; C02F2201/461; C02F2201/46105; C02F2201/4611; C02F2301/00; C02F2301/02; C02F2301/024; C02F2301/026; C02F2301/04; C02F2301/043
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
114 words
Apparatus for electrically treating fluids including: an electrostatic treater having a pair of spaced apart, oppositely charged electrodes for subjecting a fluid passed therebetween to an electrostatic field to neutralize particles contained within the fluid and initiate nucleation, at least one of said electrodes being electrically insulated from the fluid to prevent electrical current flow; and an electrolytic treater coupled with said electrostatic treater downstream from the latter for boosting the rate of nucleation of said particles by electrolysis to cause flocculation of the nucleating particles, said electrolytic treater having a pair of oppositely charged, spaced apart, bare electrodes exposed to the fluid to establish an electrical current flow in the fluid passed therebetween.
Claim 2
Dependent Claim
114 words
Apparatus for electrically treating fluids including: an electrostatic treater having a pair of spaced apart, oppositely charged electrodes for subjecting a fluid passed therebetween to an electrostatic field to neutralize particles contained within the fluid and initiate nucleation, at least one of said electrodes being electrically insulated from the fluid to prevent electrical current flow; and an electrolytic treater coupled with said electrostatic treater downstream from the latter for boosting the rate of nucleation of said particles by electrolysis to cause flocculation of the nucleating particles, said electrolytic treater having a pair of oppositely charged, spaced apart, bare electrodes exposed to the fluid to establish an electrical current flow in the fluid passed therebetween.
Claim 3
Dependent Claim
29 words
Apparatus as claimed in claim 1, wherein is further included a filter coupled with said electrolytic treater downstream from the latter for removing the flocculated particles from the fluid.
Claim 4
Dependent Claim
30 words
Apparatus as claimed in claim 1, wherein is further included a settling basic coupled with said electrolytic treater downstream from the latter for removing the flocculated particles from the fluid.
Claim 5
Dependent Claim
27 words
Apparatus as claimed in claim 1, whereIn said electrolytic treater includes a float supporting the electrodes thereof for disposition in a body of liquid to be treated.
Claim 6
Dependent Claim
51 words
Apparatus as claimed in claim 4, wherein said electrodes of the electrolytic treater are housed one within the other, the outer electrode of the pair having a liquid inlet and a liquid outlet spaced above said inlet for natural flow of the liquid through the treater when its electrodes are submerged.
Claim 7
Dependent Claim
67 words
Apparatus as claimed in claim 1, wherein said electrodes of the electrostatic treater are housed one within the other with electrode portions disposed outside the region of fluid flow through the treater, the spacing between the two electrodes within the treating region being less than the distance from said electrode portions to any other conductive parts of the treater and said portions being devoid of charge-concentrating surfaces.
Claim 8
Dependent Claim
32 words
Apparatus as claimed in claim 1, wherein is further included a float adapted to be disposed within a body of liquid to be treated, said treaters both being mounted on said float.
Claim 9
Dependent Claim
20 words
Apparatus as claimed in claim 7, wherein said float is provided with a pump for circulating liquid through said treaters.
Claim 10
Dependent Claim
47 words
Apparatus as claimed in claim 7, wherein the electrodes of each treater are housed one within the other, each treater having inlet means arranged to swirl the liquid through the treaters around each inner electrode whereby to increase the exposure time of the liquid within the treaters.
References Cited (Backward Citations)
US2842490A
Cited
US2914453A
Cited
US3202601A
Cited
US3277631A
Cited
US3398077A
Cited
US3687834A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |