| 主权项 |
1. An air pipe head comprising:
a housing bounding a venting channel and a chamber, wherein the venting channel has an end port opening downwards into the chamber, wherein a float member is arranged in the chamber and guided for guided movement between an uppermost position closing off the end port and a lowermost position spaced below the end port, wherein the chamber communicates with surroundings of the air pipe head via at least one side port, and wherein a downwardly facing surface portion of the float member in its lowermost position is shielded in substantially all lateral directions and an upper surface portion of the float member in its lowermost position is left exposed through said side port. |
