Pressure relief device and housing comprising same
AssigneeR. Stahl Schaltgeräte GmbH
InventorThorsten ARNHOLD
Life of this patent
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Abstract
A pressure relief device including a gas-permeable body to which a membrane adheres that is preferably impermeable to moisture. The membrane can be a rubber membrane that is formed by applying liquid rubber to the pressure relief body and, optionally, a component which supports the liquid rubber and surrounds the pressure relief body.
Claims20
A pressure relief device, for explosion-protected housings, comprising:
- a porous gas-permeable body having a first side facing a volume during use that contains at least one potential ignition source and a second side facing away from the volume during use;
- and
- a membrane attached to the porous gas-permeable body in a manner being in abutment against the porous gas-permeable body.
A method for attaching a membrane to a porous gas-permeable body for providing a pressure relief device that comprises a first side facing a volume during use that contains at least one potential ignition source and a second side facing away from the volume during use;
- and a membrane attached to the porous gas-permeable body in a manner being in abutment against the porous gas-permeable body, wherein
- the porous gas-permeable body is attached to a component supporting the porous gas-permeable body such that the second side of the porous gas-permeable body faces an environment;
- the method including the steps of:
- spraying of a non-cured membrane material on the second side of the porous gas-permeable body;
- and
- curing the membrane material for creating the membrane.
Dependencies are inferred from the claim text.