Air valve for electronics enclosures
US9523432B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2015 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | Sep 30, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K7/20727
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method includes rotating a first elongated, inlet-side member of an air valve toward an open configuration when a fan blade is rotating and rotating the first inlet-side member to toward a closed configuration when the fan blade is not rotating. The air valve includes a frame and a sheet of thin material. The frame may have an outlet-side member configured to be mounted on a fan housing and the inlet-side member rotatably coupled to the outlet-side member. The material may have top and bottom edges, and a plurality of folds perpendicular to the top and bottom side edges that divide the sheet into a plurality of sections. The material may be attached to the outlet-side member and the inlet-side member, and configurable between folded and expanded positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.