Drainage assembly

Claim 1

A BOTTLE COUPLING DEVICE OF THE CHARACTER DESCRIBED FOR DRAINING RELATIVELY VISCOUS FLUIDS, SUCH AS KETCHUP AND THE LIKE, FROM ONE BOTTLE INTO ANOTHER, COMPRISING A CYLINDRICAL SLEEVE PROVIDING A SLIP-FIT CONNECTION BETWEEN THE THREADED NECK PORTION OF EACH BOTTLE, AN ANNULAR LIP FORMED ON THE INNER SURFACE OF THE SLEEVE INTERMEDIATE THE ENDS THEREOF FOR LIMITING THE INGRESS OF THE NECK PORTION OF EACH BOTTLE INTO THE SLEEVE, SAID LIP EXTENDING RADIALLY INWARDLY FROM THE INNER SURFACE OF THE SLEEVE AND HAVING PLANE SURFACES NORMAL TO THE LONGITUDINAL AXIS OF THE SLEEVE FOR MAINTAINING THE UPPER SURFACES OF THE BOTTLE OUTLETS IN SPACED RELATION TO THEREBY PREVENT CRACKING OR CHIPPING THEREOF, AND A PAIR OF ANNULAR SHOULDERS FORMED ON THE INNER SURFACE OF THE SLEEVE ON OPPOSITE SIDES OF SAID LIP, EACH SHOULDER BEING POSITIONED SUBSTANTIALLY INTERMEDIATE THE RESPECTIVE END OF THE SLEEVE AND THE CORRESPONDING SIDE OF SAID LIP, SAID SHOULDERS BEING ADAPTED TO ENGAGE THE THREADED PORTION OF THE BOTTLE NECK TO THEREBY FORM AN EFFECTIVE SEAL BETWEEN THE BOTTLES.