Reclosable plastic bag

Claim 1

In a reclosable, flexible container of the type comprising: (a) a plastic film bag having flexible first and second opposing walls and an opening therein; (b) interlocking and cooperative male and female elements formed of a resilient material integrally at the inner surface of said walls about the opening of said bag, said male element being formed at said first wall and having locking surfaces thereon and said female element being formed at said second wall and having locking surfaces leading from an outer mouth portion thereof for engaging said male element locking surfaces and closing said bag thereby; and (c) external flanges formed on the upper exposed edges of said walls and extending outwardly of said elements and adapted to be gripped and drawn apart to separate said elements with said bag being opened by drawing said elements apart and being closed by pressing said elements together; the improvement comprising: (d) first and second ramp structures formed integrally with said second wall of said bag adjacent said female element, said ramp structures extending laterally from opposite sides of the outer mouth portion of said female element to the inner surface of said second wall and providing planar surfaces on both sides of said female element upon which the leading part of said male element can slide towards and so as to locate at least a portion thereof over a portion of the mouth of said female element to be interlocked therewith enabling subsequent interlocking of the remaining portions of said elements by continuous pressure applied thereto to close said bag.