Patent ID: 6708714
Filing Date: 2004-03-23
Classification: A61M,Y10T

Abstract:
Two-way valve, particularly for liquid dispensers, with a first connection for a liquid reservoir, a second connection for a pump for suction or compression and a third connection for a liquid consuming means, a diaphragm disk being clamped on its radially outer annular edge between a valve housing and a cover housing and engaging flat against an annular seat, in whose vicinity is located an axial opening for the liquid and where the diaphragm disk engages on the cover side against a mating annular seat having the same diameter, characterized in that between the radially outer annular edge (4a) and a radially smaller diameter annular seat (10) is provided an additional, bilateral clamping (9) of the diaphragm disk (4) open in the centre (4b) and which comprises the mating annular seat (6a) and an annular seat (2a) and that besides the additional clamping (9) a first annular channel (11) is formed, which issues into the third connection (3).