Patent US4257989A successfully refreshed from Google Patents.
US4257989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Humidifier
Assignee: TDK Corp
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Filing: 1979-02-22
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Granted: 1981-03-24
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Expires: 1999-02-22
Abstract
Abstract A humidifier including a misting mechanism for misting water by a ultrasonic vibrator etc. and a water feeder formed by a water storage tank and a water passage and an ion exchange resin layer disposed in the water passage to the misting mechanism.
Inventors
- 👤 Kyoichi Nishikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:53
CPC Classifications
B; B01; B01J; B01J47/00; B01J47/14; B05; B05B; B05B12/00; B05B12/08; B05B17/00; B05B17/04; B05B17/06; B05B17/0607; B05B17/0615; F; F24; F24F; F24F6/00; F24F6/12; Y; Y02; Y02B; Y02B30/00; Y02B30/70; Y10; Y10S; Y10S261/00; Y10S261/46; Y10S261/48
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
237 words
A humidifier, comprising: a housing having means defining a misting chamber therein for containing an amount of treated water to be misted; a mist conduit extending upwardly from the misting chamber and opening through the top of the housing for discharge of mist from the housing; a detachable water storage tank supported in the housing for storing a supply of untreated water to be misted, and having a water outlet; said water storage tank having an ion exchange chamber on the bottom thereof with one end in communication with the water outlet from the water storage tank and the other end in communication with the misting chamber, said ion exchange chamber also comprising a water passage for flow of water from the storage tank to the misting chamber; a removable ion exchange resin layer in the water passage for treating water flowing therethrough from the storage tank to the misting chamber; ultrasonic vibration means in the misting chamber for misting the water therein; a transparent viewing window in a wall of the water passage for visual inspection of the resin layer; and valve means in said other end of the water passage operable to close when the storage tank is removed from the housing and openable when the storage tank is placed in operative position in the housing, whereby the storage tank may be removed for inspection and servicing of the storage tank and ion exchange chamber.
Claim 2
Dependent Claim
237 words
A humidifier, comprising: a housing having means defining a misting chamber therein for containing an amount of treated water to be misted; a mist conduit extending upwardly from the misting chamber and opening through the top of the housing for discharge of mist from the housing; a detachable water storage tank supported in the housing for storing a supply of untreated water to be misted, and having a water outlet; said water storage tank having an ion exchange chamber on the bottom thereof with one end in communication with the water outlet from the water storage tank and the other end in communication with the misting chamber, said ion exchange chamber also comprising a water passage for flow of water from the storage tank to the misting chamber; a removable ion exchange resin layer in the water passage for treating water flowing therethrough from the storage tank to the misting chamber; ultrasonic vibration means in the misting chamber for misting the water therein; a transparent viewing window in a wall of the water passage for visual inspection of the resin layer; and valve means in said other end of the water passage operable to close when the storage tank is removed from the housing and openable when the storage tank is placed in operative position in the housing, whereby the storage tank may be removed for inspection and servicing of the storage tank and ion exchange chamber.
Claim 3
Dependent Claim
22 words
A humidifier according to claim 1 wherein the ion exchange resin layer is packed in a bag having water permeability and flexibility.
Claim 4
Dependent Claim
46 words
A humidifier according to claim 1 or 2, wherein; a pair of detection electrodes are disposed in water fed through the ion exchange resin layer; and a detector circuit means is connected with the electrodes for detecting the electric conductivity of water passing over the electrodes.
Claim 5
Dependent Claim
71 words
A humidifier according to claims 1 or 2, wherein; a pair of detection electrodes are disposed in water fed through the ion exchange layer; a control mechanism is connected with the ultrasonic vibration means for controlling operation of the vibration means; and control circuit means is connected with the electrodes and with the control mechanism for controlling operation of the ultrasonic vibration means dependent upon a condition sensed by the electrodes.
Claim 6
Dependent Claim
46 words
A humidifier according to claims 1 or 2, wherein: the ion exchange chamber has an opening in one end thereof; and a removable plug is inserted into the opening to close the opening but is removable therefrom to enable access to the ion exchange resin layer.
Claim 7
Dependent Claim
30 words
A humidifier according to claims 1 or 2, wherein: the ultrasonic vibration means is mounted in a bottom wall portion of the housing at the bottom of the misting chamber.
References Cited (Backward Citations)
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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) | 1984-03-23 | 1984-09-22 | 1985-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-23 | 1988-09-22 | 1989-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-23 | 1992-09-22 | 1993-03-24 | $7700.00 | Window Closed / Lapsed |