Multiple zipper slider bag
US-2015367995-A1 · Dec 24, 2015 · US
Tear strip creation on zipper flanges
US9238526B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9238526-B2 |
| Application number | US-201113193834-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 29, 2011 |
| Priority date | Jul 29, 2010 |
| Publication date | Jan 19, 2016 |
| Grant date | Jan 19, 2016 |
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- Title
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- Abstract
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- Assignees and inventors
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- Key dates
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- First independent claim
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- CPC / IPC classifications
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- Citations and related patents
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Abstract
Official abstract text for this publication.
The disclosure pertains to various embodiments of zippers with a tear flange for use in a reclosable flexible package or bag. A line of weakness can be introduced into the tear flange by application of a peel seal polymer resin or of a foaming agent. The disclosure includes further embodiments wherein lines of weakness are introduced into the flange of zippers in reclosable packages or bags.
First claim
Opening claim text (preview).
What is claimed is: 1. A zipper for a reclosable package, including: a first zipper profile segment with a first interlocking element and a first flange; a second zipper profile segment with a second interlocking element and a second flange; the first flange including a first line of weakness of controlled density reduction formed in response to co-extrusion of a foaming agent in the first flange, wherein the first line of weakness permits tearing of the first flange; and wherein the second flange includes a second line of weakness of controlled density reduction formed in response to co-extrusion of a foaming agent in the second flange, wherein the second line of weakness permits tearing of the second flange. 2. The zipper of claim 1 wherein the first and second lines of weakness are formed parallel to the first and second interlocking elements. 3. The zipper of claim 1 wherein the foaming agent causes a twenty percent density reduction in the first line of weakness and the second line of weakness with respect to remaining portions of the first and second flanges. 4. The zipper of claim 1 wherein the first and second zipper profile segments are both formed from a single self-mating zipper. 5. The zipper of claim 1 wherein the first and second zipper profile segments are separate from each other.
Assignees
Inventors
Classifications
consisting of at least two parts of chemically or physically different materials, e.g. having different densities · CPC title
- B65D33/2508Primary
using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor · CPC title
Opposed interlocking surface having dissimilar cross section · CPC title
the slide fastener being located between the product compartment and the tamper indicating means · CPC title
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Frequently asked questions
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- What does patent US9238526B2 cover?
- The disclosure pertains to various embodiments of zippers with a tear flange for use in a reclosable flexible package or bag. A line of weakness can be introduced into the tear flange by application of a peel seal polymer resin or of a foaming agent. The disclosure includes further embodiments wherein lines of weakness are introduced into the flange of zippers in reclosable packages or bags.
- Who is the assignee on this patent?
- Anzini David J, Wihlborg Lars, Koenigkramer Rusty, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification B65D33/2508. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 19 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).