Drum-type washing apparatus
US11629447B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2020 |
| Grant date | Apr 18, 2023 |
| Priority date | — |
| Expiry date | May 20, 2041 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F37/22
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A drum-type washing apparatus includes: a housing including a door in a front thereof to be opened and closed; and a washing tub supported to spin inside the housing, having a cylindrical shape opened toward the door to accommodate laundry therein, and including a pattern on which a plurality of dewatering holes for discharging wash water are arranged on an inner circumferential surface thereof, the pattern including: a first pattern including an even area provided at least one side of a first dewatering hole along the inner circumferential surface, and a second pattern provided at least one side of a second dewatering hole different from the first dewatering hole along the inner circumferential surface and including an uneven area having lower flatness than the even area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.