Cleaner
US10646806B2 · kind B2 · utility
3Cited by
17References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2017 |
| Grant date | May 12, 2020 |
| Priority date | — |
| Expiry date | Aug 21, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2279/55
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A cleaner includes: a main body that receives a suction motor; and a filter unit that is detachably coupled to the main body to filter air discharged from the suction motor and includes a ring-shaped filter and a filter frame that receives the ring-shaped filter, wherein the filter frame includes: an inner frame; an outer frame that defines a filter space for receiving the filter in cooperation with the inner frame; and a ring-shaped filter cover that connects the outer frame and the inner frame to each other and has one or more air openings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.