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Method of multi-deflector balancing and strengthening
US10406773B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10406773-B2 |
| Application number | US-201514627243-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 20, 2015 |
| Priority date | Feb 20, 2014 |
| Publication date | Sep 10, 2019 |
| Grant date | Sep 10, 2019 |
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- Title
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- Abstract
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- Assignees and inventors
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- CPC / IPC classifications
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Abstract
Official abstract text for this publication.
The disclosed embodiments relate to extrusion systems and involves a method to promote self-balancing of flow velocity while enhancing the strength of the end product by off-setting seams. This invention focuses on using a system of more than one deflector to produce multiple rings which are then quickly merged to produce a more quickly balanced ring.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for creating a balanced annular flow in an extrusion die containing a deflector system which is comprised of multiple bowtie sub deflectors that are offset from one another, wherein inputs into the multiple bowtie sub deflectors are a stream of material or a stream of layers, and annular outputs of the bowtie sub deflectors are merged to create the balanced annular flow. 2. The method according to claim 1 , wherein the extrusion distance to balanced annular flow is improved by the multiple bowtie sub deflectors such that flow rate imbalances from a first bowtie sub deflector will align with opposite imbalances from a second bowtie sub deflector. 3. The method according to claim 1 , wherein a seam formed where material meets to complete an annular flow in a given bowtie sub deflector is at an angle offset from a seam formed where material meets to form an annular flow in a second bowtie sub deflector. 4. The method according to claim 1 , wherein the multiple bowtie sub deflectors include a distribution groove with a balanced flow passage dispersing molten plastic in an extrusion die evenly within a tubular or profile extrusion channel. 5. The method according to claim 3 , wherein the balanced annular flow is extruded as a medical tube. 6. The method according to claim 3 , wherein the balanced annular flow is extruded as an irrigation tube.
Assignees
Inventors
Classifications
Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles · CPC title
the layers being joined at their edges · CPC title
the layers being joined at their surfaces · CPC title
- B32B1/08Primary
Tubular products · CPC title
Tubular articles, e.g. hoses, pipes · CPC title
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Frequently asked questions
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- What does patent US10406773B2 cover?
- The disclosed embodiments relate to extrusion systems and involves a method to promote self-balancing of flow velocity while enhancing the strength of the end product by off-setting seams. This invention focuses on using a system of more than one deflector to produce multiple rings which are then quickly merged to produce a more quickly balanced ring.
- Who is the assignee on this patent?
- Guill Tool & Eng Co, Guill Tool & Eng Co Inc
- What technology area does this patent fall under?
- Primary CPC classification B32B1/08. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Sep 10 2019 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).