Clothes dryer
US4974339A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1989 |
| Grant date | Dec 4, 1990 |
| Priority date | — |
| Expiry date | Apr 27, 2009 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F58/24
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A clothes dryer having a body with heater therein and a rotatable drying chamber is provided with a dual side rotating bladed heat exchange type fan having in its outer portion a group of grooves; and a partition member having an opening whose inner surface is opposed to the outer surface of said dual side bladed fan for separating paths of heated air and cooling air together with said dual side bladed fan in said body; the partition member has a group of fixed grooves interleaved with the fan rotating grooves to form a labyrinth seal; the fixed grooves extend from a base or the partition member and have a rising portion extending in the heated air path to inhibit the leakage of heated air from the heated air path to the cooling air path and have an opening to provide communication between the heated air and the cooling air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.