Method and apparatus for a low impedance anti-recirculation air moving inlet device
US8388423B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2008 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | Jul 15, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K7/2019
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An inlet recirculation apparatus for an air moving device includes a housing defined by a wall extending from a base. The base includes an aperture therethrough receptive to alignment with an inlet of the air moving device. A plurality of flaps each pivotally extends radially outwardly from a center pivot to another corresponding pivot disposed around a perimeter of the wall. The center pivot is coaxial with a center of the aperture. Each flap moves to an open position due to air pressure from the air moving device causing air to flow into the inlet wherein each flap pivotally rotates about the center pivot and corresponding pivot at the wall, and moves to a closed position when air pressure from the air moving device ceases wherein a space between contiguous flaps is eliminated when each flap pivotally rotates to the closed position about the center pivot and corresponding pivot at the wall to prevent reverse airflow through the air moving device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.