Patent ID: 7496992

Claim:
A zipper for a reclosable package, including: a first profile including a first flange and a male leak-resistant element and terminating in a first inter-engaging element, wherein said male leak-resistant element includes a wedge element; a second profile including a second flange and a female leak-resistant element and terminating in a second inter-engaging element, wherein said female leak-resistant element includes two opposed parallel ribs forming a grooved structure; a slider which, when moving in a closing direction, urges said first and second inter-engaging elements into inter-engagement with each other and urges said male leak-resistant element into insertion within said grooved structure of said female leak-resistant element, and when moving in an opening direction; separates said first and second inter-engaging elements from each other; wherein said slider includes a slider retaining flange impinging against at least one of said first and second profiles at a location between and separated from said inter-engaging elements and said leak-resistant elements; wherein said male and female leak-resistant elements are free of detent engagement elements whereby movement of said slider in said opening direction allows separation of said male leak-resistant element from said female leak-resistant element; wherein said slider includes a top wall and first and second side walls extending therefrom, and wherein said slider retaining flange extends from said first side wall in order to maintain engagement between said male and female leak-resistant elements; and wherein said slider includes an opening end wherein said first and second inter-engaging elements are separated and a closing end wherein said first and second inter-engaging elements are inter-engaged with each other, and wherein first and second side walls include respective first and second side wall extensions at said opening end, urging against said first and second leak-resistant elements.