Patent ID: 8590558

Claim:
A valve system connectable to a fluid channel ( 3 ), wherein the valve system ( 5 ) comprises an actuating means ( 33 ) and a closing element ( 17 ) for selectively closing and opening of the channel ( 3 ), wherein the valve system ( 5 ) comprises a chamber ( 15 ) and a movable coupling member ( 37 ), which can adapt at least two positions, wherein a section ( 48 ) of the coupling member ( 37 ) is located within the chamber ( 15 ) in at least one position of the coupling member ( 37 ) and the coupling member ( 37 ) is capable of moving under its gravitational force into a transfer position in which the coupling member ( 37 ) may transfer to the closing element ( 17 ) an external force acting on the actuating means ( 33 ) towards the closing element ( 17 ).