# US 7,610,662 B2 · Leakproof slider zipper > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,610,662 B2 - Document ID: US7610662B2 - Status: Granted - Kind: B2 - Application number: 11/599,960 - Filed: 2006-11-15 - Published: 2008-05-15 - Granted: 2009-11-03 - Earliest claimed: 2006-11-15 - Assignees: Illinois Tool Works Inc. - Inventors: Steven Ausnit - Web page: https://patentgrep.com/patent/US7610662B2 ## CPC - B65D 33/2508: {using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor} - B65D 33/2541: {characterised by the slide fastener, e.g. adapted to interlock with a sheet between the interlocking members having sections of particular shape} - Y10T 24/15: Bag fasteners - Y10T 24/2534: Opposed interlocking surface having dissimilar cross section - Y10T 24/2561: Slider having specific configuration, construction, adaptation, or material - Y10T 24/2582: having specific contour or arrangement of converging channel, separator island, or wing - B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract The present disclosure relates to a leakproof or leak-resistant slider zipper for reclosable packages or bags wherein the zipper profiles include upper flanges which are captured within horizontal channels of the slider. The horizontal channels are configured to be closer to each other at the closing end than at the opening end so as to urge the zipper profiles together at the closing end and apart at the opening end. The zipper profiles further include complementary interlocking elements as well as a lower bead and flap configuration wherein the flap remains urged against the bead in a leakproof or leak-resistant configuration throughout the entire length of the slider. ## Claims ### Claim 1 A zipper for a reclosable package or bag, comprising: a first zipper profile with a first interlocking element, a first flange and a first leak-resistant element; a second zipper profile with a second interlocking element, a second flange and a second leak-resistant element; and a slider including first and second channels capturing the respective first and second flanges above the first and second interlocking elements whereby the first and second interlocking elements are below the first and second channels, the slider including an opening end wherein the channels are spaced apart so as to separate the first and second zipper profiles and a closing end wherein the channels are spaced apart so as to interlock the first and second zipper profiles, whereby when the slider is moved in a first direction, the first and second zipper profiles are interlocked with each other and when the slider is moved in a second direction, the first and second zipper profiles are separated from each other; the slider further including first and second side walls which include tapered portions to maintain contact between the first leak-resistant element and the second leak-resistant element throughout an entire length of the slider. ### Claim 2 (depends on 1) The zipper of claim 1 wherein one of the first and second leak-resistant elements includes a semi-cylindrical protrusion. ### Claim 3 (depends on 2) The zipper of claim 2 wherein another of the first and second leak-resistant elements includes a flap protrusion urged against the semi-cylindrical protrusion by the tapered portions. ### Claim 4 (depends on 3) The zipper of claim 3 wherein the first interlocking element is positioned between the first flange and the first leak-resistant element and wherein the second interlocking element is positioned between the second flange and the second leak-resistant element. ### Claim 5 (depends on 1) The zipper of claim 1 wherein one of the first and second interlocking elements is a male element and another of the first and second interlocking elements is a female element complementary to the male element. ### Claim 6 (depends on 5) The zipper of claim 5 wherein the male element is arrowhead shaped with a shaft. ### Claim 7 (depends on 5) The zipper of claim 5 wherein the female element has two outwardly extending arms for capturing the male element. ### Claim 8 (depends on 7) The zipper of claim 7 wherein detent hooks are formed on distal ends of the outwardly extending arms. ### Claim 9 (depends on 1) The zipper of claim 1 wherein the first and second channels are formed by a divider bar formed parallel to a top wall of the slider. ### Claim 10 (depends on 9) The zipper of claim 9 wherein the divider bar is supported by a stem extending from a top wall of the slider. ### Claim 11 (depends on 10) The zipper of claim 10 wherein the stem separates the first channel from the second channel. ### Claim 12 (depends on 11) The zipper of claim 11 wherein the divider bar is free of a separator extending from the divider bar to a position between the first and second interlocking elements. ### Claim 13 (depends on 9) The zipper of claim 9 wherein the divider bar includes a separator extending between the first and second interlocking elements. ### Claim 14 (depends on 1) The zipper of claim 1 wherein the first and second flanges extend inward toward each other. ### Claim 15 (depends on 1) The zipper of claim 1 wherein the first and second channels are formed by respective first and second divider bar segments extending from respective first and second side walls of the slider. ### Claim 16 (depends on 1) The zipper of claim 1 wherein the first and second flanges have a C-shaped cross section. ### Claim 17 (depends on 1) The zipper of claim 1 wherein the first and second flanges have a T-shaped cross section. ### Claim 18 (depends on 1) The zipper of claim 1 wherein the first and second flanges have a cylindrical cross section. ### Claim 19 (depends on 1) The zipper of claim 1 wherein the first and second flanges have a semi-cylindrical cross section. ### Claim 20 A zipper for a reclosable package or bag, comprising: a first zipper profile with a first interlocking element, a first flange and a first leak-resistant element; a second zipper profile with a second interlocking element, a second flange and a second leak-resistant element; and a slider including first and second channels capturing the respective first and second flanges above the first and second interlocking elements whereby the first and second interlocking elements are below the first and second channels, the slider including an opening end wherein the channels are spaced apart so as to separate the first and second zipper profiles and a closing end wherein the channels are spaced apart so as to interlock the first and second zipper profiles, whereby when the slider is moved in a first direction, the first and second zipper profiles are interlocked with each other and when the slider is moved in a second direction, the first and second zipper profiles are separated from each other; the slider further including first and second side walls which include tapered portions to maintain contact between the first leak-resistant element and the second leak-resistant element throughout an entire length of the slider; and wherein the first channel is formed by a divider bar extending from one of the side walls and formed parallel to a top wall of the slider and wherein the second channel is formed by a finger extending from the divider bar parallel to the side walls.