Device for improving the pourability of fluids and also forming an improved closure for a container of such fluids

Claim 1

In combination with a container having an externally threaded open end, an insert for such containers to promote the dripless dispensing of semi-viscous liquids such as oil, syrup, and the like, comprising a circular flange adapted to bear sealingly against the open end of the container, and an integrally related annular well proportioned to fit within the container and disposed below the open end of the container and including means forming a drainage opening within the base thereof, and a pouring spout formed from a reverse bend within said well integrally related to said insert, and extending substantially above the circular flange and having a pouring lip disposed diametrically from said drainage opening and with a sharp pouring edge which contributes to dripless pouring from the interior of the container through said spout and providing a run-back surface leading to said well where the fluid is returned to the interior of the container at the level of said well, and a screw-on cap threadedly received over the threaded exterior at the open end of said container and including a shoulder adapted to exert clamping effort against the pouring edge and which clamps the circular shoulder of said insert sealingly against the open end of the container and prevents pouring out of said spout until said cap is removed.