Cap for a widemouthed container

In combination, a container having a neck having an annular end with a substantially circular upper corner and a downward tapering lower curvature ending in a minimum diameter portion, a first and a second annular recess spaced from each other and below said minimum diameter portion;

• and a cap of a flexible plastic material deformable to accommodate minor variations in bottle dimensions and to permit said cap to stretch over said minimum diameter portion, said cap being preformed and having substantially uniform wall thickness throughout, said cap comprising a flat top disc having a diameter about equal to that of said neck, a depending skirt extending below said minimum diameter portion and having a pair of inwardly extending annular projections each fitting snugly in sealing engagement in one of said annular recesses, and pairs of depending tabs connected to said skirt to extend below said skirt on opposite sides thereof, said skirt being weakened by two pair of score lines extending from each pair of tabs and which are located on the outside surface of said skirt to prevent leakage from the bottle, said score lines being positioned on opposite sides of said tab and extending upwardly toward said flat top disc and diverging outwardly from each other and terminating in the skirt just above said minimum diameter portion and below said corner said skirt being tearable along each pairof score lines to open said cap, said cap in position on said neck sealing said neck against either input or output of any substance, said cap when torn along said score lines permitting removal of said cap from said neck and ready replacement thereof on said neck to reseal said bottle.