Grill assembly of a cyclone dust collecting apparatus for a vacuum cleaner
US6648934B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2002 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Feb 12, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/03
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A grill assembly for a cyclone dust collecting apparatus for use in a vacuum cleaner capable of improving dust collection of the vacuum cleaner by preventing dirt from flowing into a vacuum-generating device after passing through a grill. The grill assembly is disposed at an upper part of an air discharge passage of a cyclone body for separating dirt from a whirling air current by centrifugal force by forming the whirling air current from drawn air, and the grill assembly prevents dirt from being drawn into the vacuum-generating device of the vacuum cleaner. The grill assembly comprises a grill body having a plurality of passages formed thereon and filtering units disposed along an interior wall of the grill body for filtering dust drawn into the grill body through the plurality of passages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.