Rapid response self-closing pressure equalization vent
US8839807B2 · kind B2 · utility
1Cited by
9References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2010 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | Jul 20, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7922
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rapid response self-closing pressure equalization vent employs a frame supported in a compartment divider and a movable vent portion having a periphery sealingly engaging the frame in a closed position. Multiple resilient extension elements are attached to the frame and engage the movable vent portion for even displacement around a periphery of the movable vent portion relative to the frame to an open position responsive to a pressure differential on the movable vent portion. The resilient extension elements retract upon equalization of the pressure differential to reseat the movable vent portion in the frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.