Patent US5300224A successfully refreshed from Google Patents.
US5300224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid treatment device
Assignee: Individual
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Filing: 1991-11-21
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Granted: 1994-04-05
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Expires: 2011-11-21
Abstract
Abstract The present invention provides a one piece or unitary filter assembly for attachment to a waterline to remove chlorine and other substances from water. This unitary assembly provides a rechargeable or reusable filter assembly for use with hot water passing through a concentrated bed of 100% granulated or powdered zinc and includes a removable diverter/screen element to enable zinc to be added to or removed from an internal chamber formed therein. The preferred method of treating water utilizes 100% zinc filter media to react with or remove chlorine and other substances more efficiently from water, thereby allowing a greater volume of water to be treated, as well as the treatment of water at elevated temperatures. The pure zinc filtering media used has the added advantage of achieving a more efficient oxidation of chlorine while meeting current EPA standards.
Inventors
- 👤 Frederick A. Farley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:03
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/72; C02F1/76; C02F1/766; C02F1/001; C02F1/003; C02F1/70; C02F1/705; C02F2201/00; C02F2201/002; C02F2201/006
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
172 words
A unitary filter assembly comprising a hollow body having an internal chamber formed therein between inlet and outlet means integrally formed with said body to allow the flow of fluid into and out of said chamber; said hollow body being cylindrical with a pair of domed end walls having exterior and interior surfaces integrally formed thereto, and a plurality of vanes fixed within said internal chamber to said interior surfaces of said domed end walls for strengthening and fluid flow control purposes; a diverter/screen means removably mounted within said inlet means and extending into said internal chamber a predetermined distance from said inlet means; said diverter/screen means being captured in position within said inlet means and said internal chamber to control the flow of water from said inlet means into said internal chamber; a filter media substantially filling said internal chamber; and said diverter/screen means in said inlet means being removable therefrom and from said internal chamber to allow said filter media to be inserted into or removed from said internal chamber.
Claim 2
Dependent Claim
172 words
A unitary filter assembly comprising a hollow body having an internal chamber formed therein between inlet and outlet means integrally formed with said body to allow the flow of fluid into and out of said chamber; said hollow body being cylindrical with a pair of domed end walls having exterior and interior surfaces integrally formed thereto, and a plurality of vanes fixed within said internal chamber to said interior surfaces of said domed end walls for strengthening and fluid flow control purposes; a diverter/screen means removably mounted within said inlet means and extending into said internal chamber a predetermined distance from said inlet means; said diverter/screen means being captured in position within said inlet means and said internal chamber to control the flow of water from said inlet means into said internal chamber; a filter media substantially filling said internal chamber; and said diverter/screen means in said inlet means being removable therefrom and from said internal chamber to allow said filter media to be inserted into or removed from said internal chamber.
Claim 3
Dependent Claim
29 words
The unitary filter assembly of claim 1, further including an outlet filter screen held within said internal chamber adjacent said outlet means to prevent filter media from exiting therefrom.
Claim 4
Dependent Claim
35 words
The unitary filter assembly of claim 2 wherein said outlet means includes screen threads formed externally on the end thereof to allow a device to be secured to the threaded end of said outlet means.
Claim 5
Dependent Claim
23 words
The unitary filter assembly of claim 3 wherein said diverter/screen means is frustro-conical in shape with a flattened end in said internal chamber.
Claim 6
Dependent Claim
57 words
The unitary filter assembly of claim 4 wherein said diverter/screen means includes an annular lip sized so as to be threadedly captured within said inlet means, and a frustro-conical shaped body with a flattened end and a plurality of openings formed at least in said body, secured to said annular lip and extending into said internal chamber.
Claim 7
Dependent Claim
90 words
The unitary filter assembly of claim 5 wherein said hollow body is cylindrical with a pair of domed end walls having exterior and interior surfaces integrally formed thereto, and a plurality of vanes fixed within said internal chamber to said interior surfaces of said domed end walls for strengthening and fluid flow control purposes, and wherein said filter media is substantially 100% zinc held between said outlet screen mounted in said chamber against said vanes on said interior surface of said end wall adjacent said outlet and said diverter/screen means.
Claim 8
Dependent Claim
172 words
A unitary filter assembly adapted to remove chlorine from water, including: a cylindrical hollow body comprised as a single integral unit having domed end walls with exterior and interior surfaces, and an annular side wall bounding a hollow inner chamber with a filter media held therein; water inlet and outlet means formed integrally with said domed end walls and extending outwardly away from said domed end walls and said hollow inner chamber, and fluidly connected to said hollow inner chamber; a diverter/screen means removably mounted in the water inlet means and extending into said chamber, said diverter/screen means having a plurality of openings formed therein whereby water entering said inlet water inlet means will pass through said openings in said diverter/screen means to be evenly distributed into said filter media within said hollow inner chamber; and a cylindrical outlet filter mounted within said hollow inner chamber adjacent the water outlet means on a plurality of vanes formed on the interior surface of said domed end wall having said water outlet means therein.
Claim 9
Dependent Claim
172 words
A unitary filter assembly adapted to remove chlorine from water, including: a cylindrical hollow body comprised as a single integral unit having domed end walls with exterior and interior surfaces, and an annular side wall bounding a hollow inner chamber with a filter media held therein; water inlet and outlet means formed integrally with said domed end walls and extending outwardly away from said domed end walls and said hollow inner chamber, and fluidly connected to said hollow inner chamber; a diverter/screen means removably mounted in the water inlet means and extending into said chamber, said diverter/screen means having a plurality of openings formed therein whereby water entering said inlet water inlet means will pass through said openings in said diverter/screen means to be evenly distributed into said filter media within said hollow inner chamber; and a cylindrical outlet filter mounted within said hollow inner chamber adjacent the water outlet means on a plurality of vanes formed on the interior surface of said domed end wall having said water outlet means therein.
Claim 10
Dependent Claim
22 words
The unitary filter assembly of claim 7 wherein said filter media in said chamber is 100% zinc in granulated or powdered form.
Claim 11
Dependent Claim
66 words
The unitary filter assembly of claim 8 wherein the interior surface of said domed end wall adjacent said inlet includes a plurality of vanes thereon and said diverter/screen means includes an annular lip sized so as to be threadedly captured within said inlet, and a frustro-conical shaped body, having said plurality of openings formed therein, secured to said annular lip and extending into said inner chamber.
Claim 12
Dependent Claim
33 words
The unitary filter assembly of claim 9 wherein said outlet includes threads formed on a portion of the exterior thereof; and a device may be mounted on said threaded portion of said outlet.
Claim 13
Dependent Claim
83 words
The unitary filter assembly of claim 7 wherein said diverter/screen means includes an annular lip held within said inlet, and a frustro-conical shaped body, having said plurality of openings formed therein, secured to said annular lip and extending into said inner chamber with a flattened end thereon in said chamber, and said annular lip of said diverter/screen is threaded into threads formed in said inlet and said openings formed in said frustro-conical body are larger than openings formed in said flattened end thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-04-04 | 1997-10-04 | 1998-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-04-04 | 2001-10-04 | 2002-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-04-04 | 2005-10-04 | 2006-04-05 | $7700.00 | Window Closed / Lapsed |