Explosion vent

Patent metadata

Field	Value
Publication number	US-9903491-B2
Application number	US-201615076054-A
Country	US
Kind code	B2
Filing date	Mar 21, 2016
Priority date	Mar 20, 2015
Publication date	Feb 27, 2018
Grant date	Feb 27, 2018

Abstract

An explosion vent mounted to seal an opening formed on a wall of a closed space comprises a cover being dimensioned to fit on said opening and having a perimeter with an edge adapted to seal the cover against the opening with a sealing element. A spring element is arranged to hold the cover in the opening and the spring element has a direction of spring action. The cover is held by opposite retaining surfaces in the opening and the cover and he retaining surfaces are acting against the spring action of element. The sealing element is positioned against the opening so that the sealing force is directed at least partially crosswise to the direction of the spring action of the spring element.

First claim

The invention claimed is:

1. An explosion vent mounted to seal an opening formed on a wall, the vent comprising:
a cover being dimensioned to fit on said opening and having a perimeter with an edge adapted to seal the cover against the opening with a sealing element, wherein:
the cover has a first surface on its perimeter edge for accommodating the sealing element and a second surface extending outwards from the first surface and forming a flange having larger dimensions than the first surface,
at least one leaf spring extends over the perimeter of the cover and is attached on a surface that is on an opposite side of the cover in relation to the flange, and wherein the leaf spring is configured to hold the cover in the opening and having a direction of spring action,
opposite retaining surfaces in the opening are provided and the cover is acting against the spring action of element, and
that the sealing element is positioned against the opening so that the sealing force is directed at least partially crosswise to the direction of the spring action of the spring element.

2. The explosion vent according to the claim 1 , wherein the opening has a surface facing towards the center of the opening and the sealing element is mounted on the cover so that it causes a sealing force against that surface.

3. The explosion vent according to the claim 1 , wherein the sealing force is directed at least partially crosswise, perpendicular, to the opening direction of the cover and the spring element is positioned to cause a force that is opposite to the opening direction of the cover.

4. The explosion vent according to claim 1 , further comprising means for preventing the rotation of the cover in the opening.

Assignees

• Abb Technology Oy

Inventors

• Karppa Jaani
• Kinnunen Tuomo
• Myllykoski Pirkka

Classifications

• F16K17/0493

  with a spring other than a helicoidal spring · CPC title

• F42B39/20

  Packages or ammunition having valves for pressure-equalising; Packages or ammunition having plugs for pressure release, e.g. meltable {; Blow-out panels; Venting arrangements (ventilating arrangements on packages formed from foldable or erectable blanks B65D5/4295; packages with pressure-relief valves incorporated in a container wall B65D77/225)} · CPC title

• F16K17/0413 Primary

  in the form of closure plates · CPC title

• F16K17/36 Primary

  actuated in consequence of extraneous circumstances, e.g. shock, change of position · CPC title

• B64C2001/009

  comprising decompression panels or valves for pressure equalisation in fuselages or floors · CPC title