Evaporative humidifier
US6427984B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2000 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | Aug 11, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/65
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An evaporative humidifier including a base removably supporting a water tray for holding a quantity of water. A blower assembly and a water tank are removably supported by the base above the water tray. The blower assembly includes a housing and a fan disposed intermediate a pair of air inlets and an air exhaust outlet. A cylindrically shaped wick filter is supported by the water tray and extends upwardly into the housing. The wick filter includes a cylindrical side wall and opposing open upper and lower ends. The fan is driven by a motor mounted inside the housing for drawing air into the housing through the air inlets, through the cylindrical side walls of the wick filter, and then through the open upper end of the wick filter and out of the housing through the air exhaust outlet. A float assembly is removably supported by the water tray and includes an vertically extending switch actuator vertically moveable with changing water levels in the water tray and selectively engagable with a float switch for deactivating the motor when the water level falls below a predetermined point. The water tank includes concave and convex side walls and a handle defining a pivot point wherein sup…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.