Patent 7241046 was granted and assigned to Illinois Tool Works on July, 2007 by the United States Patent and Trademark Office.
A watertight closure for a reclosable package has first and second mutually interlocking profiles. Together, the profiles have two sets of interlocking members, one on either side of a central portion. There, at least one profile has a collapsible member in its central portion. The other profile may have a compressing member or a collapsible member opposite to the collapsible member, or it may have neither. In any event, when the first and second mutually interlocking profiles are joined to one another, the collapsible member encounters and compresses against the other profile to create a watertight seal.