Reverse flow preventing device and electronic apparatus
US7302967B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2006 |
| Grant date | Dec 4, 2007 |
| Priority date | — |
| Expiry date | Jan 31, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7903
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A reverse flow preventing device arranged in a flow path of fluid formed by a fan and an electronic apparatus equipped with the same. The reverse flow preventing device has a frame, a plurality of support shafts arranged about the center of the frame and mounted on the frame, and a plurality of pivotable plate members supported by the support shafts. The plate members can move between the first position (reverse flow preventing position) in which they lie in a substantially single plane and the second position (normal operating position) in which they move. The support shafts and the plate members are arranged substantially concentrically or radially.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.