Air-guiding casing of a ventilation fan
US9746196B2 · kind B2 · utility
2Cited by
11References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2014 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Oct 22, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/626
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An air-guiding casing of a ventilation fan includes a main body and an air-guiding tube. The main body forms a compartment and includes an inlet and an outlet. The inlet and the outlet are in communication with the compartment. A first engaging portion is arranged on a part of an edge of the outlet and on one side of the main body. The air-guiding tube has an engaging end and an outlet end opposite to the engaging end. A second engaging portion is arranged on the engaging end. The first and second engaging portions are engaged with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.