Pouring spout for liquid containers

Claim 1

A pouring spout for a container having a threaded neck comprising a tubular elongated spout body which is at least in part flexible and provided at opposite ends with threaded necks of equal thread size, a threaded closure cap having a wide marginal flange approximately equal to the diameter of the container neck and adapted for threaded engagement with either of said equal thread size necks, an adapter portion integrally formed on one end of the spout body and having an enlarged ring substantially larger in diameter than the equal thread size necks and approximately equal in diameter to the container neck, a container neck sealing gasket adapted for engagement between the end of the container neck at either side of the enlarged ring, and a threaded adapter and sealing ring of sufficient size to pass over the enlarged ring and said gasket and adapter to threadedly engage the container neck and including an annular end wall adapted to bear on the enlarged ring when the spout is in a pouring position and to bear on said wide flange of the closure cap when the spout is in an inverted stored position within the container, said enlarged ring of the adapter portion being roughly V-shaped in cross section and hollow, the adapter portion being conically tapered away from one side of the ring and toward the outlet end of the spout.