End closure arrangement for dispensing foamable liquids

Claim 1

AN ARTICLE OF MANUFACTURE, FOR DISPENSING FLOWABLE MATERIAL INTO A RESERVOIR THROUGH AN INLET PORT ON THE RESERVOIR, COMPRISING: A CONTAINER FOR THE FLOWABLE MATERIAL HAVING A NECK, SAID NECK HAVING A TOP PORTION THAT IS CLOSED EXCEPT FOR AN ECCENTRICALLY LOCATED APERTURE THERETHROUGH WHICH COMMUNICATES WITH THE CONTAINER''S INTERIOR; WALL MEANS DEFINING A SPOUT, SAID SPOUT HAVING A FLOOR PORTION WHICH IS CLOSED EXCEPT FOR AN ECCENTRICALLY LOCATED APERTURE THERETHROUGH, AN INNER WALL WITHIN SAID SPOUT EXTENDING FROM SAID FLOOR PORTION AND CONTACTING SAID WALL MEANS TO FORM A PAIR OF DUCTS WITHIN SAID SPOUT ONE OF WHICH IS IN COMMUNICATION WITH SAID APERTURE IN SAID FLOOR PORTION, MEANS FOR ROTATABLY CONNECTING SAID SPOUT AND SAID NECK SO THAT IN ONE RELATIVE POSITION OF SAID SPOUT AND NECK SAID FLOOR PORTION IS IN FACE-TO-FACE ABUTMENT WITH SAID TOP PORTION WHEREBY SAID FLOOR PORTION CLOSES SAID APERTURE IN SAID TOP PORTION AND SAID TOP PORTION CLOSES SAID APERTURE IN SAID FLOOR PORTION; SAID INNER WALL REINFORCING SAID WALL MEANS DEFINING SAID SPOUT AGAINST BUCKLING AND REINFORCING SAID FLOOR PORTION AGAINST BUCKLING SAID WALL MEANS DEFINING SAID SPOUT BEING CONFIGURED FOR INSERTION INTO THE INLET PORT OF SAID RESERVOIR IN SEALED RELATIONSHIP THEREWITH; SAID CONTAINER AND ASSOCIATED NECK BEING ROTATABLE INTO A SECOND POSITION RELATIVE TO SAID SPOUT IN WHICH THE APERTURE IN SAID TOP PORTION OF SAID NECK IS IN REGISTRY WITH THE APERTURE IN SAID FLOOR PORTION OF SAID SPOUT.