Combined self-hinging pouring spout and closure

Claim 1

A COMBINATION POURING SPOUT AND CLOSURE FOR A CONTAINER HAVING AN OPENING COMPRISING A CLOSURE PLATE, A CLOSURE INSERT OF LESS LENGTH AND WIDTH THAN SAID CLOSURE PLATE ON THE BOTTOM SIDE OF SAID CLOSURE PLATE SO AS TO FIT WITHIN SAID OPENING, WINGS EXTENDING DOWNWARDLY FROM OPPOSITE SIDES OF SAID CLOSURE INSERT HAVING RAISED PORTIONS ADJACENT SAID CLOSURE INSERT SO AS TO FORM GROOVES BETWEEN SAID WINGS AND SAID CLOSURE PLATE OF WHICH GROOVES SAID CLOSURE INERT FORMS THE BOTTOM, SAID WINGS HAVING EXTENSIONS AT ONE END OF SAID CLOSURE PLATE EXTENDING BEYOND SAID CLOSURE PLATE, SAID WINGS AND SAID EXTENSIONS DEFINING ADDITIONAL GROOVES IN GENERAL PERPENDICULAR TO SAID END OF SAID CLOSURE PLATE, BUT INCLINED AWAY FROM SAID WINGS SO AS TO TERMINATE UNDER SAID ONE END OF SAID CLOSURE PLATE, SAID WINGS AND SAID EXTENSIONS BEING CURVED ON CURVES OF WHICH THE WALLS OF SAID ADDITIONAL GROOVES ADJACENT SAID WINGS ARE THE RADII, SAID WINGS BEING CUT BACK FROM SAID CURVES ADJACENT THE OTHER END OF SAID CLOSURE PLATE SO AS TO HAVE LESS RADIUS THAN THE DOWNWARD EXTENDING PORTIONS OF SAID WINGS.