Syringe-type liquid container dispenser adapter

An adapter for connecting in fluid communication a nozzle of a liquid medication dispensing syringe-type dispenser with the interior of a bottle having a bottom wall and containing liquid medication or the like comprising:

• a tubular body member composed of resilient material and being generally cylindrical in shape to fit snugly within the mouth of the bottle;
• means defining an opening extending axially through said body member for receiving the nozzle of the syringe-type dispenser, said opening including a forward nozzle receiving portion and a rear portion, the axial length of said forward portion being substantially the same as the axial length of the nozzle so that the exit end of the nozzle terminates near said rear portion when the nozzle is inserted fully within said opening;
• means defining a fluid pathway disposed at said rear portion of said opening for guiding liquid to said forward nozzle-receiving portion and for preventing or minimizing the introduction of air into said opening;
• means defining a re-entry vent opening extending axially through said body member terminating near the bottom thereof to vent to the atmosphere the space between the liquid level and said member;
• and
• said means defining a fluid pathway including a tube depending from the adapter into the bottle terminating at its lower end near the bottom wall of the bottle for conveying liquid medication therefrom to the nozzle of the dispenser;
• valve means disposed in said fluid pathway for permitting liquid medication to flow from said tube to the nozzle when it is inserted in the nozzle-receiving opening and for trapping liquid medication in said tube near the first-mentioned opening when the dispenser is withdrawn from said opening, said valve means being a web extending across the first-mentioned opening and having a slit therein for receiving the nozzle of the dispense.