Patent · US Expired

Self-cleaning filter with bypass

US6402962B1 · kind B1 · utility

11Cited by
6References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 26, 2000
Grant dateJun 11, 2002
Priority date
Expiry dateJul 26, 2020

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01D2201/02
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A self-cleaning filter with a bypass port is provided for a washing machine that recirculates water back to the wash tub. The filter includes a housing with a filter element disposed therein. The filter element normally filters lint and other material from the water drained from the wash tub, with the water then being recirculated back to the wash tub. When the filter element becomes clogged, the water automatically flows through a bypass port in the filter, such that recirculation continues. The filter element is automatically cleaned by back-washing the filter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.