Back suction free eye drop nozzle for e.g. bottle, has air pipe directly formed in adapter under flexible seal, which is inwardly fitted at container, where flexible seal opened to inner space is significantly lighter than orifice outlets

摘要

The nozzle has a flexible seal (9) arranged or directly formed on an inner side of a valve head (1) of a valve bushing (5). The flexible seal is inserted and attached in an adapted sealing sleeve (10) and/or in a conical and/or convex sealing cone at an adapter (6) under a light initial load. An air pipe (11) is directly formed in the adapter under the flexible seal, which is inwardly fitted at a container (21) with low pressure. The flexible seal opened to an inner space (2) is significantly lighter than orifice outlets (13, 22, 23). An independent claim is also included for a method for producing a back suction free eye drop nozzle.