Grill assembly of a cyclone dust collecting apparatus for a vacuum cleaner
US6599338B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2002 |
| Grant date | Jul 29, 2003 |
| Priority date | — |
| Expiry date | Feb 25, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/03
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A grill assembly of a cyclone dust collecting apparatus for a vacuum cleaner capable of improving the capability of dust collecting of the vacuum cleaner by reducing the amount of the filth drawn into a vacuum generating device through a grill. The grill assembly, disposed at the upper part of the air discharging passage of a cyclone body that separates filth from a whirling air current by a centrifugal force for the whirling air current of the drawn air for preventing the filth from being drawn into the vacuum generating device of the vacuum cleaner, includes a grill body and a plurality of passages disposed therein. The extended line of the center line of the passages forms an acute angle with a stream line of the whirling air current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.