Patent ID: 7191809

Claim:
A connector for dispensing liquid from a tank ( 53 ), said connector having a construction in which: both a liquid dispensing plug installation hole ( 55 ) and a dual-purpose gas/liquid supply plug installation hole ( 56 ) are formed in a drum cap ( 51 ) which is threadably engaged with a neck portion of said tank ( 53 ); a liquid plug ( 57 ), which is provided with a siphon tube ( 59 ) extending to an inner bottom surface of said tank ( 53 ), is fixedly mounted in said liquid dispensing plug installation hole ( 55 ) in a manner such that said liquid plug ( 57 ) prevents its upper surface from being positioned in a level beyond an upper surface of said drum cap ( 51 ); a dual-purpose gas/liquid plug ( 70 ) is fixedly mounted in said dual-purpose gas/liquid supply plug installation hole ( 56 ) in a manner such that said dual-purpose gas/liquid plug ( 70 ) prevents its upper surface from being positioned in a level beyond said upper surface of said drum cap ( 51 ); and, a liquid cap ( 62 ) and a dual-purpose gas/liquid cap ( 75 ) are detachably mounted on said liquid plug ( 57 ) and said dual-purpose gas/liquid plug ( 70 ), respectively, in an insertion manner so as to hermetically close an upper opening portion of each of said plugs ( 57 , 70 ).