Washing machine
US11566365B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2020 |
| Grant date | Jan 31, 2023 |
| Priority date | — |
| Expiry date | Dec 3, 2040 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F2105/42
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The present disclosure relates to a washing machine including a tub, a drum, and a detergent supply device configured to supply an additive to the tub. The detergent supply device includes a plurality of cartridges storing additive, a plurality of check valve assemblies connected to the plurality of cartridges and configured to control extracting of the additive, a pump for extracting additive, an inlet channel defining a plurality of flow paths respectively connected to the plurality of check valve assemblies, where the inlet channel is configured to transmit a pressure change generated by the pump to the plurality of check valve assemblies, and a flow path switching valve connected to the pump and the inlet channel and configured to selectively establish fluid communication between the pump and any one of the plurality of flow paths of the inlet channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.