Patent ID: 7213622

Claim:
Venting device, particularly for fluid-storing reservoirs with a connecting part ( 10 ) for establishing an air-carrying or fluid-carrying connection ( 14 ) to the interior of the reservoir, and with a closure part ( 16 ) which can be removed from the connecting part ( 10 ), especially in the form of a sealing cap, when the closure part ( 16 ) has been fitted between it and the connecting part ( 10 ) there being at least one leakage point ( 18 ) in the manner of an air exchange opening, a labyrinth-like seal ( 20 ) effectively sealing the respective leakage point ( 18 ) at least against penetrating media such as water and detergent chemicals, but not against air exchange for actual venting, the labyrinth-like seal ( 20 ) comprising a system of seal passages ( 22 ), of which one part in the manner of a collecting and delivery site ( 24 , 26 ) holds the respective penetrating medium, the respective collecting and delivery site ( 24 , 26 ) being part of a U-shaped or angular seal passage ( 32 , 34 ), and at least one sealing leg ( 36 ) of the fitted closure part ( 16 ) engaging at least in the U-shaped seal passage ( 32 ), characterized in that for effective sealing in the intended flow direction of the penetrating medium downstream of the U-shaped seal passage ( 32 ) an angular seal passage ( 34 ) follows in a definable plurality and that the respective angular seal passage ( 34 ) is formed from the collecting and delivery site ( 24 , 26 ) which is routed along the radial circumference of the connecting part ( 10 ) and into which guide channels ( 50 ) discharge which extend transversely to it and which with their other free end are each connected to the U-shaped seal passage ( 32 ) and to the interior of the venting device in a manner so as to be able to carry the media.