Washing machine
US4446706A · kind A · utility
80Cited by
11References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 15, 1982 |
| Grant date | May 8, 1984 |
| Priority date | — |
| Expiry date | Dec 15, 2002 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F2105/48
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The invention relates to a washing machine which comprises a casing (1) having a washing-liquid container (2) and a cylindrical washing drum (3) rotatably arranged in the container. The washing drum is driven by a single, brushless a.c.motor, to which energy is supplied from an inverter (41), so that the washing machine may be driven at a desired, alternative number of revolutions/min, which are preprogrammed and within an extended range of revolutions/min.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.