Control arrangements for clothes driers and clothes driers including such control arrangements
US4209915A · kind A · utility
16Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1978 |
| Grant date | Jul 1, 1980 |
| Priority date | — |
| Expiry date | Apr 3, 1998 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F2105/28
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A clothes drier control circuit includes an electric heater regulated to maintain a constant predetermined temperature difference between the outlet and the ambient air. A digital reference value is stored representing the constant heat output level when a constant rate of evaporation is reached. The eventual reduction of the heat output to a given fraction of the reference value is detected so as to indicate that the clothes have reached a predetermined desired degree of dryness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.