Patent ID: 8287260

Claim:
An air venting valve for removing air from a vulcanizing mould of a vehicle tire which comprises: a valve body having a substantially cylindrical inner surface functioning as an air channel, a valve stem movable in its longitudinal direction within the valve body, said valve stem having an outer diameter which is smaller than the inner diameter of the valve body, defining an air flow channel therebetween, a valve disc disposed at one end of the valve stem at the side of a mould surface, the diameter of said valve disc being larger than the inner diameter of the valve body, wherein said valve disc supports itself in a closed position of the air venting valve on a stop surface of the valve body and defines an open position at a clearance from said stop surface, wherein a spring member is disposed in the air flow channel for forcing the valve stem in a predetermined open position when a blank is removed from the vulcanizing mould, and wherein the valve body is provided with an internal thread at an end opposite to the stop surface of the valve body, and the valve stem is provided with an external thread at an end opposite to the valve disc, whereby the valve stem is adapted to be screwably installed in the valve body.