Patent ID: 7748526
Filing Date: 2010-07-06
Classification: A61C,B65D

Abstract:
1. A mixing device with a first chamber ( 1 ) for a first component, a second chamber ( 12 ) for a second component, and a divider means ( 11 , 13 ) separating the first and the second chamber, in which the second chamber ( 12 ) is defined by an inner hollow cylinder ( 10 ) which is arranged so as to be movable in a piston-like fashion in an outer hollow body ( 2 ) including the first chamber ( 1 ), and the first chamber comprises an evacuation opening ( 5 ) that is adapted to be connected with a vacuum source, characterized in that a vacuum packing ( 30 ) is welded around the evacuation opening ( 5 ) of the first chamber to the outer hollow body ( 2 ).