Patent US5415770A successfully refreshed from Google Patents.
US5415770A
Expired / Lapsed
US
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Apparatus for treating fluids
Assignee: KDF Fluid Treatment Inc
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Filing: 1994-06-22
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Granted: 1995-05-16
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Expires: 2014-06-22
Abstract
Abstract A fluid treating apparatus and method for treating fluid to remove undesirable constituents contained therein are disclosed. The apparatus and method include employing a bed of metal particulate matter. The metal particulate matter is preferably chosen from metals having: favorable redox potentials relative to the redox potentials of the undesirable constituents so as to establish conditions for spontaneous oxidation and reduction reactions between the undesirable constituents and the metal particles and/or having bacteriostatic or bactericidal properties in the case where the undesirable constituent sought to be treated is a bacteria.
Inventors
- 👤 Don E. Heskett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:14
CPC Classifications
C; C02; C02F; C02F9/00; C02F9/20; C02F1/00; C02F1/70; C02F1/705; C02F1/28; C02F1/281; C02F1/50; C02F1/505; C02F2101/00; C02F2101/10; C02F2101/103; C02F2201/00; C02F2201/002; C02F2201/006; C02F2303/00; C02F2303/18; C02F2303/185
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
29 words
An improved activated carbon fluid treating media wherein said improvement comprises finely divided metals of about 4-400 mesh size comprising copper and zinc intimately intermingled with said activated carbon.
Claim 2
Dependent Claim
29 words
An improved activated carbon fluid treating media wherein said improvement comprises finely divided metals of about 4-400 mesh size comprising copper and zinc intimately intermingled with said activated carbon.
Claim 3
Dependent Claim
24 words
The improved activated carbon treating media of claim 1 wherein said copper and said zinc are present in the form of a copper-zinc alloy.
Claim 4
Dependent Claim
67 words
Fluid treating apparatus comprising: inlet means for introducing the fluid to be treated to the apparatus; a first fluid treatment medium through which the fluid introduced to the apparatus passes for treatment, said first fluid treatment medium comprising a finely divided material comprising copper and zinc metals; and a second fluid treatment medium through which the fluid introduced to the apparatus passes for treatment comprising activated carbon.
Claim 5
Dependent Claim
67 words
Fluid treating apparatus comprising: inlet means for introducing the fluid to be treated to the apparatus; a first fluid treatment medium through which the fluid introduced to the apparatus passes for treatment, said first fluid treatment medium comprising a finely divided material comprising copper and zinc metals; and a second fluid treatment medium through which the fluid introduced to the apparatus passes for treatment comprising activated carbon.
Claim 6
Dependent Claim
20 words
The apparatus of claim 3 wherein said first fluid treating medium comprises an alloy of said copper and said zinc.
Claim 7
Dependent Claim
40 words
The apparatus of claim 3, wherein the apparatus includes a chamber to which said inlet means communicates, and wherein said first and second fluid treatment media are contained in said chamber for the flow of the fluid through said media.
Claim 8
Dependent Claim
22 words
The apparatus of claim 5, wherein said first and second fluid treatment media are intimately intermingled with each other in said chamber.
Claim 9
Dependent Claim
46 words
The apparatus of claim 5, wherein one fluid treatment medium is positioned in said chamber between said inlet means and the other fluid treatment medium, whereby the fluid to be treated flows through the one fluid treatment medium and then through the other fluid treatment medium.
Claim 10
Dependent Claim
19 words
The apparatus of claim 3, wherein said first and second fluid treatment media are intimately intermingled with each other.
Claim 11
Dependent Claim
46 words
The apparatus of claim 3, wherein one fluid treatment medium is positioned in said chamber between said inlet means and the other fluid treatment medium, whereby the fluid to be treated flows through the one fluid treatment medium and then through the other fluid treatment medium.
Claim 12
Dependent Claim
90 words
Fluid treating apparatus comprising: inlet means for introducing the fluid to be treated to the apparatus; a first fluid treatment medium through which the fluid introduced to the apparatus passes for treatment, said first fluid treatment medium comprising a finely divided material comprising copper and zinc metals; and a second fluid treatment medium through which the fluid introduced to the apparatus passes for treatment, said second fluid treatment medium comprising at least one treatment medium selected from the group consisting of an ion exchange medium and a reverse osmosis medium.
Claim 13
Dependent Claim
90 words
Fluid treating apparatus comprising: inlet means for introducing the fluid to be treated to the apparatus; a first fluid treatment medium through which the fluid introduced to the apparatus passes for treatment, said first fluid treatment medium comprising a finely divided material comprising copper and zinc metals; and a second fluid treatment medium through which the fluid introduced to the apparatus passes for treatment, said second fluid treatment medium comprising at least one treatment medium selected from the group consisting of an ion exchange medium and a reverse osmosis medium.
Claim 14
Dependent Claim
18 words
The apparatus of claim 10, wherein said finely divided material comprises an alloy of said copper and zinc.
Claim 15
Dependent Claim
40 words
The apparatus of claim 10, wherein the apparatus includes a chamber to which said inlet means communicates, and wherein said first and second fluid treatment media are contained in said chamber for the flow of the fluid through said media.
Claim 16
Dependent Claim
22 words
The apparatus of claim 12, wherein said first and second fluid treatment media are intimately intermingled with each other in said chamber.
Claim 17
Dependent Claim
46 words
The apparatus of claim 12, wherein one fluid treatment medium is positioned in said chamber between said inlet means and the other fluid treatment medium, whereby the fluid to be treated flows through the one fluid treatment medium and then through the other fluid treatment medium.
Claim 18
Dependent Claim
19 words
The apparatus of claim 10, wherein said first and second fluid treatment media are intimately intermingled with each other.
Claim 19
Dependent Claim
46 words
The apparatus of claim 10, wherein one fluid treatment medium is positioned in said chamber between said inlet means and the other fluid treatment medium, whereby the fluid to be treated flows through the one fluid treatment medium and then through the other fluid treatment medium.
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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) | 1998-05-15 | 1998-11-14 | 1999-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-05-15 | 2002-11-14 | 2003-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-05-15 | 2006-11-14 | 2007-05-16 | $7700.00 | Window Closed / Lapsed |