Burst zipper

Patent metadata

Field	Value
Publication number	US-9247791-B2
Application number	US-201313767534-A
Country	US
Kind code	B2
Filing date	Feb 14, 2013
Priority date	May 4, 2012
Publication date	Feb 2, 2016
Grant date	Feb 2, 2016

Abstract

A burst zipper system includes a flexible zipper, a close-only slider and a set of handles. The burst zipper system is configured to be closed by operation of the close-only slider and opened by pulling on the set of handles in opposite directions. The burst zipper system can be used in sports bags, such as duffle bags, and backpacks, in tents, and the like.

First claim

What is claimed is:

1. A burst zipper system, comprising:
a zipper having a length, the zipper including a first closure strip and a second closure strip, wherein the first closure strip includes a first interlocking member and a first web portion, and the second closure strip includes a second interlocking member and a second web portion;
a slider configured to fit around the zipper; and
a set of handles, the set of handles including at least two handles which are arranged substantially directly opposite each other and spaced apart across the zipper, such that the slider is slidable between the at least two handles,
wherein the zipper is configured to be closed by the slider, which joins the first and second interlocking members as the slider runs along the length of the zipper, and opened by pulling on the set of handles, and
wherein the set of handles are attached via welding, stitching or by using an adhesive.

2. The burst zipper system of claim 1 , wherein the slider is a bi-directional, close-only slider.

3. The burst zipper system of claim 1 , wherein the zipper is a flexible zipper extruded from a polymeric material.

4. The burst zipper system of claim 1 , wherein the first interlocking member includes a first set of teeth and the second interlocking member includes a second set of teeth, the first set of teeth and the second set of teeth configured to interlock with each other in an interference fit, and wherein each of the first web portion and the second web portion is bent at least once to position the first set of teeth and the second set of teeth to face each other.

5. The burst zipper system of claim 4 , wherein the first web portion is bent at five locations and the second web portion is bent once to provide four sides for the slider to ride on, and wherein the first set of teeth and the second set of teeth interlock longitudinally with each other.

6. The burst zipper system of claim 4 , wherein the first web portion is bent once at 90° and the second web portion is bent once at 90°, wherein the first and second sets of teeth interlock longitudinally with each other, and wherein the first closure strip includes a rib extending away from the first set of teeth and parallel with the first web portion.

7. The burst zipper system of claim 6 , wherein the slider is configured to fit around the first and second interlocking members, and includes a channel configured to fit around the rib, and wherein the rib and the channel together facilitate the slider to securely run along the length of the zipper.

8. The burst zipper system of claim 4 , wherein the slider includes one or more bearing elements arranged substantially in-line with one or both of the first and second interlocking members, the one or more bearing elements configured to facilitate compressing of the first and second interlocking members together.

9. The burst zipper system of claim 4 , wherein the first and second interlocking members face each other laterally and interlock with each other laterally.

10. The burst zipper system of claim 4 , wherein the slider is configured to fit around the first and second interlocking members, and includes a receiver on an exterior wall to receive a pull element to facilitate movement of the slider along the zipper to close the zipper.

11. The burst zipper system of claim 1 , wherein the set of handles includes a first handle and a second handle, the first and the second handles being semi-looped handles,
wherein the first handle is attached on the first web portion and the second handle is attached on the second web portion opposite from the first handle across the zipper, such that the first and second handles are pulled in opposing directions to separate the first and second interlocking members after they have been interlocked with each other.

12. The burst zipper system of claim 1 , wherein the set of handles includes a first handle, a second handle, a third handle, and a fourth handle, wherein the first and second handles intersect each other and are arranged on a first closure member side of the zipper, and the third and fourth handles intersect each other and are arranged on a second closure member side of the zipper, wherein the second handle is attached on the first web portion and the third handle is attached on the second web portion, and the first handle is aligned adjacent the second handle and attached to a bag to which the zipper is attached, and the fourth handle is aligned adjacent the third handle and attached to the bag, wherein the first, second, third, and fourth handles are aligned and arranged such that the first and second handles are pulled together in one direction, and the third and fourth handles are pulled together in the opposite direction to separate the first and second interlocking members after they have been interlocked with each other.

13. The burst zipper system of claim 1 , wherein the set of handles includes a first handle, a second handle, a third handle, and a fourth handle, wherein the first and second handles are arranged along the first web portion together and attached at three attachment locations, and the third and fourth handles are arranged along the second web portion together and attached at three attachment locations, wherein the set of handles are arranged such that the first and second handles are pulled in one direction and the third and fourth handles are pulled in the opposite direction to separate the first and second interlocking members after they have been interlocked with each other.

14. The burst zipper system of claim 13 , wherein the first and second handles are formed from a single strip of material and separated by an attachment location, and the third and the fourth handles are formed from a single strip of material separated by an attachment location.

15. The burst zipper system of claim 1 , wherein the set of handles are provided in the form of internal pockets.

16. The burst zipper system of claim 1 including two zippers each including a respective slider and each including a respective set of handles, the zippers positioned on either side of a web and each configured to close the web independently, each zipper configured such that either or both sets of handles can open one or both of the zippers independently.

17. A burst zipper system, comprising:
a zipper having a length, the zipper including a first closure strip and a second closure strip, wherein the first closure strip includes a first interlocking member and a first web portion, and the second closure strip includes a second interlocking member and a second web portion;
a slider configured to fit around the zipper; and
a set of handles, the set of handles including at least two handles which are arranged substantially directly opposite each other across the zipper,
wherein the zipper is configured to be closed by the slider, which joins the first and second interlocking members as the slider runs along the length of the zipper, and opened by pulling on the set of handles, and
wherein the first interlocking member is an arrow-head shaped male member and the second interlocking member is a female member configured to receive the arrow-head shaped male member, the female member including barbs to secure the arrow-head shaped male member in the female member, wherein the first closure strip includes a first tab, and the first tab and the first web portion extend in a same first direction away from the arrow-head shaped male member, and the first tab and the first web portion define a first channel behind the arrow-head shaped male member, and wher

Assignees

• Illinois Tool Works

Inventors

• Cowin Joseph T
• Swain Henry L

Classifications

• A45C13/103

  Arrangement of zip-fasteners · CPC title

• Y10T24/2532

  having interlocking surface with continuous cross section · CPC title

• A44B19/16 Primary

  Interlocking member having uniform section throughout the length of the stringer {(for sacks or bags B65D33/2508)} · CPC title

• A44B19/32 Primary

  Means for making slide fasteners gas or watertight · CPC title

• Y10T24/2582

  having specific contour or arrangement of converging channel, separator island, or wing · CPC title