Door insert for balancing air pressure
US8662971B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 28, 2011 |
| Grant date | Mar 4, 2014 |
| Priority date | — |
| Expiry date | Oct 7, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B7/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The door insert of the present invention balances air pressure in a closed environment. It includes a frame that defines a slot. A pair of tabs emanates from opposing sides of the frame to attach the frame to a door. Media, which has a plurality of apertures therethrough, resides in the slot. The frame, with media installed therein resides within a notch in an edge of a door. Air is permitted to flow through the door insert to balance the air pressure within an environment divided by the door. The frame is preferably ABS plastic and the media is preferably paper. The appearance of the frame and media may be modified to aesthetically match the decor of the door, door hardware and surrounding environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.