Washing machine
US5152159A · kind A · utility
21Cited by
1References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1991 |
| Grant date | Oct 6, 1992 |
| Priority date | — |
| Expiry date | Mar 25, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F33/47
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An automatic washing machine includes an outer tub, an inner tub rotatably mounted in the outer tub and having a plurality of dehydration perforations formed in an upper end portion, a drain hole formed in the bottom of the inner tub, a valve mechanism for opening and closing the drain hole, a stopper for stopping the inner tub at a predetermined position, and a drive section mounted in the outer tub for driving the valve mechanism so that the drain hole is opened and closed, in the condition that the inner tub is stopped at the predetermined position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.