Ventilation system and ventilation fan housing thereof
US9957978B2 · kind B2 · utility
0Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2015 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Aug 31, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2013/205
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A ventilation fan housing includes: a shield body having a receiving space, a maintenance opening and a wire-positioning opening adjacent to the maintenance opening, with the maintenance opening and wire-positioning opening penetrating a wall of the shield body and communicating with the receiving space, and with a lid connecting with the shield body detachably to cover the maintenance opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.