Humidifier
US4257989A · kind A · utility
52Cited by
7References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 22, 1979 |
| Grant date | Mar 24, 1981 |
| Priority date | — |
| Expiry date | Feb 22, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/48
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.