Patent US5045215A successfully refreshed from Google Patents.
US5045215A
Expired / Lapsed
US
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Removing hazardous contaminants from water
Assignee: North East Environmental Products Inc
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Filing: 1989-10-20
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Granted: 1991-09-03
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Expires: 2009-10-20
Abstract
Abstract A system for removing hazardous contaminants such as radon gas and volatile synthetic organic chemicals from domestic water supplies includes a perforated, horizontally-oriented tray which is baffled to define a curved (e.g., serpentine, spiral) liquid flow path. Contaminated water is distributed upon a portion of the tray and flows as directed by the baffles to a downcomer and into a storage tank. Air is blown into the storage tank, which is located below the perforated tray, and up through the perforations. The forced air causes the water flowing across the tray to froth, and evaporates the contaminants out of the frothing water. The forced air, carrying the volatilized contaminants, is then vented outside the home.
Inventors
- 👤 Bruce L. Lamarre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:25
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/0042; B01D19/0005; C; C02; C02F; C02F1/00; C02F1/20; C02F1/58; C02F1/62; C02F1/64; C02F1/645; G; G21; G21F; G21F9/00; G21F9/04; G21F9/06; G21F9/12; C02F2101/00; C02F2101/006; Y; Y10; Y10S; Y10S210/00; Y10S210/902; Y10S210/911
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
72 words
A method for removing hazardous contaminants from water comprising: distributing the contaminated water upon the intake portion of a baffled and perforated tray, flowing the contaminated water in a curved flowpath across said tray from said intake portion toward an output portion, and causing sufficient air to flow upwardly through perforations in said tray so that the water flowing along said flowpath forms a deep froth while maintaining frothing throughout said flowpath.
Claim 2
Independent Claim
72 words
A method for removing hazardous contaminants from water comprising: distributing the contaminated water upon the intake portion of a baffled and perforated tray, flowing the contaminated water in a curved flowpath across said tray from said intake portion toward an output portion, and causing sufficient air to flow upwardly through perforations in said tray so that the water flowing along said flowpath forms a deep froth while maintaining frothing throughout said flowpath.
Claim 3
Dependent Claim
18 words
The method of claim 1 further comprising collecting water significantly purified by removal of contaminants in a tank.
Claim 4
Dependent Claim
19 words
The method of claim 1 further comprising venting air laden with contaminants volatilized from the water to the atmosphere.
Claim 5
Dependent Claim
15 words
The method of claim 1 wherein the contaminated water is flowed in a serpentine flowpath.
Claim 6
Dependent Claim
15 words
The method of claim 1 wherein the contaminated water is flowed in a spiral flowpath.
Claim 7
Dependent Claim
18 words
The method of claim 5 wherein the contaminated water is distributed in the center of the spiral flowpath.
Claim 8
Dependent Claim
18 words
The method of claim 5 wherein the contaminated water is distributed at the periphery of the spiral flowpath.
Claim 9
Dependent Claim
28 words
The method of claim 1 further comprising pressurizing a tank located below said tray, whereby the air is blown from said pressurized tank through perforations in said tray.
Claim 10
Dependent Claim
15 words
The method of claim 1 wherein the air is drawn through perforations in said tray.
Claim 11
Dependent Claim
14 words
The method of claim 1 further comprising pumping the contaminated water from a well.
Claim 12
Dependent Claim
14 words
The method of claim 1 further comprising spraying the contaminated water upon said tray.
Claim 13
Dependent Claim
16 words
The method of claim 2 further comprising pumping said collected water into a water storage container.
References Cited (Backward Citations)
US3434701A
Cited
US4036917A
Cited
US4566522A
Cited
US4526692A
Cited
US4582610A
Cited
US4663089A
Cited
US4756724A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-09-02 | 1995-03-04 | 1995-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-02 | 1999-03-04 | 1999-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-02 | 2003-03-04 | 2003-09-03 | $7700.00 | Window Closed / Lapsed |