US5098562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating deaerated water
Assignee: Individual
•
Filing: 1991-01-29
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Granted: 1992-03-24
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Expires: 2011-01-29
Abstract
Abstract A water treating apparatus is provided with a softening section, including an ion-exchange resin-filled section and a softening section disposed integrally with a vacuum deaerating membrane section so as to allow gases to pass through the membrane while a liquid is prevented from passing therethrough. The apparatus is compact in size and easily handled. The softened water provided thereby is useful as deionized and degassed water for boiler water and for the preparation of integrated circuits.
Inventors
- 👤 Yoshihiko Shibata
- 👤 Yoshihiro Chikamori
- 👤 Youichi Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:04
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/0031; C; C02; C02F; C02F9/00; C02F9/20; B01D61/00; C02F1/00; C02F1/42
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
157 words
A water treating apparatus having a water passage comprising an ion-removing section which contains material which removes ions from water and a degassing section, wherein: (a) the ion-removing section is disposed as a central core of said apparatus; (b) the degassing section comprises a waterproof, air-permeable membrane disposed such that one surface thereof forms and defines a water passage and the opposite surface thereof forms and defines a gas passage, each of said passages being defined by a spacer; (c) the waterproof, air-permeable membrane and the spacer being spirally connected to each other and spirally wound about said central core; (d) said water passage in said degassing section being connected to a soft water inlet from said ion-removing section to said degassing section and including an outlet for soft water emerging from said degassing section; and (e) said gas passage being connected to a gas outlet therefrom through which the pressure within said gas passage is reduced.
Claim 2
Dependent Claim
157 words
A water treating apparatus having a water passage comprising an ion-removing section which contains material which removes ions from water and a degassing section, wherein: (a) the ion-removing section is disposed as a central core of said apparatus; (b) the degassing section comprises a waterproof, air-permeable membrane disposed such that one surface thereof forms and defines a water passage and the opposite surface thereof forms and defines a gas passage, each of said passages being defined by a spacer; (c) the waterproof, air-permeable membrane and the spacer being spirally connected to each other and spirally wound about said central core; (d) said water passage in said degassing section being connected to a soft water inlet from said ion-removing section to said degassing section and including an outlet for soft water emerging from said degassing section; and (e) said gas passage being connected to a gas outlet therefrom through which the pressure within said gas passage is reduced.
Claim 3
Dependent Claim
33 words
A water treating apparatus of claim 1 wherein said ion-removing section is filled with an ion-exchange resin and a filter for removing particles is mounted between said ion-removing section and said degassing section.
Claim 4
Dependent Claim
33 words
A water treating apparatus of claim 1 wherein said ion-removing section is connected to a salt water vessel disposed to supply salt water to said ion-removing section continuously to regenerate said ion-exchange resin.
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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) | 1995-03-24 | 1995-09-23 | 1996-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-24 | 1999-09-23 | 2000-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-24 | 2003-09-23 | 2004-03-24 | $7700.00 | Window Closed / Lapsed |