Self-cleaning under basket lint filter for automatic washers
US4357813A · kind A · utility
8Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1980 |
| Grant date | Nov 9, 1982 |
| Priority date | — |
| Expiry date | Dec 1, 2000 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F13/02
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A filter cone fixed to the bottom of a washing machine basket includes a plurality of closely spaced rigid teeth in a circumferential row extending outwardly and upwardly to divide the tub into first and second chambers for filtering laundry liquid during a washing cycle and for preventing sediment and debris from returning into the basket during a direct-into-spin portion of the wash cycle. The reverse flow of water through the filter teeth during the drain portion of the washing cycle effects self-cleaning of the teeth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.