Automatic liquid level control for automatic washers
US4480449A · kind A · utility
31Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1983 |
| Grant date | Nov 6, 1984 |
| Priority date | — |
| Expiry date | Jun 16, 2003 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F39/087
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An automatic liquid level control is provided for an automatic washing machine which measures the volume of liquid required to be added to the tub increase the liquid level in the tub by a predetermined increment. The measured amount is compared to a reference amount corresponding to an empty tub. When the measured amount equals the reference amount, the clothes in the washer will be covered and the control terminates introduction of the liquid into the tub and continues with the remainder of the washing cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.