| abstract |
The outlet ( 12 ) of a dispenser reservoir ( 8 ) is sealingly closed by a transverse catch member ( 21 ) which also positively prevents the dispenser ( 1 ) from being actuated. Pulling out the catch member ( 21 ) opens the reservoir ( 8 ) and releases the discharge actuator ( 37 ). Thus the piston ( 14 ) opposing the reservoir outlet ( 12 ) can enter. The materials of the reservoir ( 8 ) and reservoir seal ( 30 ) are paired in glass, tetrafluoroethylene or the like. Thus even sensitive media may be stored in the dispenser ( 1 ) over lengthy periods without risking any change in the substances. |