US5160038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water purifying apparatus
Assignee: Ube Corp
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Filing: 1990-01-11
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Granted: 1992-11-03
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Expires: 2010-01-11
Abstract
Abstract A water purifying cartridge including a double structure container having an outer container and an inner cylinder disposed within the outer container, an inlet port for flowing water into an external space defined by the outer container and the inner cylinder, and an outlet port for discharging water from the internal space formed within the inner cylinder, the external space and the internal space communicating with each other through a water channel formed in the inner cylinder and separated by a filter, the external space being filled with activated carbon and the internal space being loaded with separation- and filtration membranes, whereby water flowed into the external space from the raw water supplying portion via the inlet port being arranged to pass through the activated carbon, then introduced into the internal space via the water channel, then purified during the passage through the separation- and filtration membranes, and then discharged from the purified water outlet portion via the outlet port.
Inventors
- 👤 Takashi Harada
- 👤 Susumu Fujimura
- 👤 Masahide Higashiyama
- 👤 Hidetoshi Tokita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:32
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/14; B01D61/18; C; C02; C02F; C02F9/00; C02F9/20; B01D61/20; B01D63/00; B01D63/02; B01D63/024; B01D63/0241; C02F1/00; C02F1/001; C02F1/003; C02F1/28; C02F1/283; C02F1/44; C02F1/444; B01D2313/00; B01D2313/13; B01D2313/18; B01D2313/20; B01D2313/201; B01D2313/44; C02F2201/00; C02F2201/002; C02F2201/006
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
193 words
A water purifying cartridge comprising a double structure container having an outer container and an inner cylinder disposed within said outer container, an inlet port through which water flows into an external space defined by said outer container and said inner cylinder, and an outlet port through which water flows out of an internal space located at an inner side of said inner cylinder, said external and internal spaces being in communication with each other via a water channel formed in said inner cylinder and separated through a filter, said filter being wound on an outer peripheral wall of said inner cylinder, said outer peripheral wall being provided with a water pocket, said water pocket comprising a narrow gap formed between said outer peripheral wall and an inner surface of said filter, said external space being filled with activated carbon and said internal space being loaded with separation and filtration membranes, whereby water flowed into said external space through said inlet port passes through said activated carbon, then via said water channel into said internal space wherein it is purified by said separation and filtration membranes, and then discharged through said outlet port.
Claim 2
Dependent Claim
193 words
A water purifying cartridge comprising a double structure container having an outer container and an inner cylinder disposed within said outer container, an inlet port through which water flows into an external space defined by said outer container and said inner cylinder, and an outlet port through which water flows out of an internal space located at an inner side of said inner cylinder, said external and internal spaces being in communication with each other via a water channel formed in said inner cylinder and separated through a filter, said filter being wound on an outer peripheral wall of said inner cylinder, said outer peripheral wall being provided with a water pocket, said water pocket comprising a narrow gap formed between said outer peripheral wall and an inner surface of said filter, said external space being filled with activated carbon and said internal space being loaded with separation and filtration membranes, whereby water flowed into said external space through said inlet port passes through said activated carbon, then via said water channel into said internal space wherein it is purified by said separation and filtration membranes, and then discharged through said outlet port.
Claim 3
Dependent Claim
74 words
A water purifying apparatus comprising a block base having a raw water supplying portion and a purified water outlet portion, a water purifying cartridge removably mounted on said block base, and a hot water prevention means mechanism for automatically preventing the inflow of hot water having a temperature higher than 60° C. into said water purifying cartridge, said hot water prevention means being located in a raw water supplying passage to said block base.
Claim 4
Dependent Claim
74 words
A water purifying apparatus comprising a block base having a raw water supplying portion and a purified water outlet portion, a water purifying cartridge removably mounted on said block base, and a hot water prevention means mechanism for automatically preventing the inflow of hot water having a temperature higher than 60° C. into said water purifying cartridge, said hot water prevention means being located in a raw water supplying passage to said block base.
Claim 5
Dependent Claim
117 words
A water purifying apparatus as claimed in claim 2, wherein said hot water prevention means is disposed to an arm-like water inlet member connected with said block base at said raw water pipe supplying portion and having a service water pipe connector portion, said water inlet member including a passage for supplying service water to said raw water supplying portion and a raw water outlet portion, said passage and raw water outlet portion being in communication with said service water pipe connector portion, a switch valve disposed between said passage and said service water pipe connector for directing a stream from the service water pipe connector to either said passage or to said raw water outlet portion.
Claim 6
Dependent Claim
167 words
A water purifying apparatus as claimed in claim 2, wherein said water purifying cartridge includes a double structure container having an outer container and an inner cylinder disposed within said outer container, an inlet port for flowing water into an external space defined by said outer container and said inner cylinder, and an outlet port for discharging water from said internal space formed within said inner cylinder, said external space and said internal space being in communication with each other via a water channel formed in said inner cylinder and separated through a filter, said external space being filled with activated carbon and said internal space being loaded with separation and filtration membranes, whereby water flowed into said external space from said raw water supplying portion via said inlet port passes through said activated carbon, then via said water channel into said internal space wherein it is purified by said separation and filtration membranes, and then discharged from said purified water outlet portion via said outlet port.
Claim 7
Dependent Claim
40 words
A water purifying apparatus as claimed in claim 2, wherein said hot water prevention means comprises a valve body and a shape memory alloy for driving said valve body, said shape memory alloy being located downstream from said valve body.
Claim 8
Dependent Claim
117 words
A water purifying apparatus as claimed in claim 5, wherein said hot water prevention means is disposed to an arm-like water inlet member connected with said block base at said raw water pipe supplying portion and having a service water pipe connector portion, said water inlet member including a passage for supplying service water to said raw water supplying portion and a raw water outlet portion, said passage and raw water outlet portion being in communication with said service water pipe connector portion, a switch valve disposed between said passage and said service water pipe connector for directing a stream from the service water pipe connector to either said passage or to said raw water outlet portion.
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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) | 1995-11-03 | 1996-05-04 | 1996-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-11-03 | 2000-05-04 | 2000-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-11-03 | 2004-05-04 | 2004-11-03 | $7700.00 | Window Closed / Lapsed |