Patent · US Expired

Slit valve for automatic washer

US5249441A · kind A · utility

26Cited by
11References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 2, 1992
Grant dateOct 5, 1993
Priority date
Expiry dateJan 2, 2012

Classification

  • Technology area (CPC D)Textiles; Paper
  • CPC primaryD06F37/12
  • WIPO fieldOther consumer goods
  • WIPO sectorOther fields

Abstract

In an automatic washer including a perforate wash basket, valves are provided which restrict the fluid flow through the perforations during portions of the wash cycle when the basket is stationary or slowly rotating or oscillating, but permit extraction and fluid flow therethrough during higher spin speeds. These valves may take the form of individual elastomeric sheet-like components which are attached around the basket, or they may be grouped into functional units occupying larger areas, such as bands or sheets of elastomeric material. The valve openings are formed as slits or cuts in the elastomeric material.

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