Abstract: A new two part closure for a sanitary wash bottle assembly comprising an inner multiple lobed elastomer plug and a sealing stopper. A dispensing tube passes through the inner plug and a bulb is positioned next to the neck of the flask of the wash bottle. The sealing stopper is formed with a downwardly extending skirt which encompasses the top rim of the wash bottle and an inner lip-matching groove to engage the wash bottle rim at the lip edge. The inner plug member is formed with uniformly spaced apart lobes at the bottom of the plug and with a central axial bore having narrowed portions at the top and bottom of the bore to facilitate pushing in the dispensing tube. The plug is molded by a transfer molding operation and is formed of a yieldable elastomer having a Durometer (Shore A). The multi-lobe construction of the plug provides a yieldable easily manipulated plug mass which can be easily inserted within the outer skirt and cap member of the double stopper assembly.

Abstract: An improved sanitary washbottle kit assembly comprising a specially shaped molded two piece dispensing and sealing stopper equipped with a dispensing tube and resilient bulb adjacent the neck of the flask of the washbottle. The molded two piece dispensing and sealing stopper is formed of resilient compressible material, one piece being an outer piece which covers the open top of the flask extending downwardly over the neck and is shaped with a projecting ledge at a height a short distance below the top of the flask to form a horizontal channel extending between the outside of the flask and the inside of the flask while the second piece is a molded inner stopper formed with a flange fitting into a counterbore of the outer stopper, this flange counterbore interfitting providing a single compressible resilient closure unit. The inner stopper piece may be adhered by adhesive to the inner stopper piece.