Patent ID: 8720483

Claim:
A device for equalizing pressure surges in the event of possible dust or gas explosions in closed systems, including silos and pipelines, comprising: a hinged lid having a body and a planar surface that can pivot; an outlet connector; a deflecting plate for contact of the lid in the event of an explosion on the outlet connector, wherein the hinged lid is formed from a carbon/glass fiber material, whereby the lid body is formed from carbon/glass fiber mats that form outer walls, with an enclosed body made of plastic foam material, forming the lid contour; wherein a heat tape is laminated into a side of the layer of carbon/glass fiber mat that faces outward and wherein said heat tape is configured to serve to prevent said hinged lid from freezing if temperatures fall below a freezing point; and wherein said deflecting plate is spring loaded and held in a transport position by means of multiple safety wires that are stepped in length.