Determining clog steam generator tank filter laundry drier, and apparatus
US8256137B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2008 |
| Grant date | Sep 4, 2012 |
| Priority date | — |
| Expiry date | Oct 12, 2029 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F2105/60
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A home laundry drier (1) having a revolving drum (5) for housing the laundry to be dried, a hot-air generator (7) for circulating a stream of hot air inside the drum (5), and a steam generator (17) for feeding steam into the drum (5); the steam generator (17) having an electric boiler (18) designed to receive a given quantity of water and immediately convert it into a stream of low-pressure steam to be fed into the drum (5), a demineralized-water reservoir (20) located over and communicating with the electric boiler (18), and a lint filter (23) located upstream from the water reservoir (20); the water reservoir (20) receiving distilled water from the water canister (12) of the heat exchanger (10) of the hot-air generator (7) via a water drain circuit (13); and the laundry drier (1) also having a liquid level sensor (26) for determining when the water in the water reservoir (20) is below a given minimum level, and a central control unit (24) for determining whether the water reservoir (20) is in a given low-water-level condition at both the start and end of a user-selected drying cycle not including activation of the steam generator (17).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.