20130270306 | Easy-Open Valve Closure - Valve closure for bottles, comprising a valve portion to be fitted on a bottle neck and having a valve stopper and devices for sealed fixing on the bottle neck, an axially movable outer valve portion comprising a head plate, a valve opening for engagement with the valve stopper and a female thread screw cap connected to the head plate, the thread having a nominal radius r in engagement with a male screw thread of a connecting portion connected to the valve stopper. To permit easy opening of the closure with one hand, the screw cap is fixedly connected to an actuating lever extending radially outwardly from the screw cap so that the lever radius R defined by the radially outer end of the actuating lever has a spacing relative to the axis of the screw cap, which is more than 120% than the nominal radius r of the female screw thread. | 10-17-2013 |