Explosion vent

Patent metadata

Field	Value
Publication number	US-2016273670-A1
Application number	US-201615076054-A
Country	US
Kind code	A1
Filing date	Mar 21, 2016
Priority date	Mar 20, 2015
Publication date	Sep 22, 2016
Grant date	—

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

1 . An explosion vent mounted to seal an opening formed on a wall 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: at least one spring element for holding the cover in the opening and having a direction of spring action, opposite retaining surfaces in the opening and the cover acting against the spring action of element, and that the sealing element being 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 . An 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 . An explosion vent according to the claim 1 , wherein the sealing force is directed at least partially crosswise, preferably 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 . An explosion vent according to the claim 1 , 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.

5 . An explosion vent according to claim 1 , wherein the at least one spring element is attached on the cover on a surface that is opposite side of the cover in relation to the flange.

6 . An explosion vent according to claim 1 , wherein means for preventing the rotation of the cover in the opening.

7 . An explosion vent according to claim 1 , wherein the spring element is at least one leaf spring extending over the perimeter of the cover.

Assignees

• Abb Technology Oy

Inventors

• Karppa Jaani
• Kinnunen Tuomo
• Myllykoski Pirkka

Classifications

• E04B1/98 Primary

  against vibrations or shocks (on foundations E02D31/08); against mechanical destruction, e.g. by air-raids (against incendiary damage only E04B1/94; finishing work therefor E04F; buildings withstanding earthquake or the like, shelters, arrangements of splintercatching walls E04H9/00) · CPC title

• F16K17/16

  with fracturing diaphragm {; Rupture discs} · CPC title

• F16K17/36 Primary

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