Patent ID: 6264067
Filing Date: 2001-07-24
Classification: B05B,B65D

Abstract:
An actuation device for actuating a dispensing member and for dispensing a product, said actuation device comprising:an inlet orifice for flow communication with the dispensing member;a dispensing orifice;at least one passage configured to convey product from said inlet orifice to said dispensing orifice;a suction orifice in flow communication with said passage, said suction orifice being distinct from said inlet orifice; anda vacuum mechanism including a variable-volume chamber having a collecting region and a chamber orifice for flow communication with said chamber, said variable-volume chamber being entirely enclosed within said actuation device, said chamber orifice being in flow communication with said suction orifice, and at least a portion of said collecting region being below the level of said chamber orifice, said vacuum mechanism being configured to create at least a partial vacuum inside said passage so that at least some of any residual product residing in said passage is conveyed, via said suction orifice and said chamber orifice, into said collecting region of said variable-volume chamber.