Corrugated tube for blower and blower
US11927282B2 · kind B2 · utility
1Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2020 |
| Grant date | Mar 12, 2024 |
| Priority date | — |
| Expiry date | Jan 9, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2250/52
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An outlet tube includes a first rib, a second rib, and a channel positioned between the first rib and the second rib. The first rib extends from a surface of the tube. The first rib tapers between a first thickness and a second thickness. The second rib extends from the surface of the tube. The second rib tapers between the first thickness and the second thickness. The channel has a first width between adjacent first thicknesses and a second width between adjacent second thicknesses. The first width is greater than the second width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.