Document Type and Number:
Japanese Patent JPS5548028
Kind Code:
B2
Abstract:
A leak-proof closure for a liquid container having a threaded neck. A cap for the closure has internal threads which mate with those on the container neck. The cap has an annular skirt portion above or below the threaded section. The container neck has at least one annular sealing ring on its outer surface at such a level that the cap skirt portion fits circumjacent the ring when the cap is threaded onto the neck into closed position. The outer diameter of the ring and the inner diameter of the cap skirt are such that an interference fit therebetween is established. Preferably the sealing ring or rings have a sharp edge in order to provide substantially a line contact with the skirt portion. In a preferred and illustrated embodiment, co-operating means are provided on the cap and the container to make the closure child-proof.
Application Number:
JP7377773A
Publication Date:
December 03, 1980
Filing Date:
July 02, 1973
Export Citation:
International Classes:
B65D41/04; B65D50/04