Patent ID: 6752295
Filing Date: 2004-06-22
Classification: B05B

Abstract:
A dispenser drain attachment, comprising:a first one-piece structural part forming a threaded cap with a tapering drain socket having an extension and a double diaphragm with deformable diaphragm disks on said extension, said first one-piece structural part being made in an injection molding procedure; a second one-piece structural part forming a drain tube for receiving said double diaphragm for sealing said drain tube, said second one-piece structural part further including an elastic gas bellows for dispensing a flowable media by alternately deforming said deformable diaphragm disks of said double diaphragm as one-way valves resulting from changed pressure conditions occurring when said elastic gas bellows is deformed via compression and release, said second one-piece structural part being made in an injection-molding procedure; and, means for attaching said first one-piece structural part to said second one-piece structural part, said means for attaching being formed as an integral part of at least one of said first one-piece structural part or said second one-piece structural part, said dispenser drain attachment comprising of said first one-piece structural part and said second one-piece structural part with each of said one-piece structural parts made via two-component injection molding comprising a first component and a second component, whereas said second component for said double diaphragm with its said deformable diaphragm disks and for said elastic gas bellows being a softer and more flexible material than said first component for said threaded cap with said tapering drain socket and for said drain tube, there being a lateral receiving sleeve shaped on an outer side of said drain tube, said lateral receiving sleeve merging on one side into a film hinge, onto which a retaining ring with an inserting collar is molded, said inserting collar being capable of being tightly clipped into said lateral receiving sleeve.