Method and apparatus for the production of a rubber compound used for the manufacture of an article made from rubber or a pneumatic tire technical sector
US-12589523-B2 · Mar 31, 2026 · US
Screw elements with reduced sweep angle
US8979355B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8979355-B2 |
| Application number | US-99762609-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 9, 2009 |
| Priority date | Jun 20, 2008 |
| Publication date | Mar 17, 2015 |
| Grant date | Mar 17, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
The present invention relates to screw elements for multiscrew extruders with pairs of co-rotating and fully wiping screws, to the use of these screw elements in multiscrew extruders and to a method of generating screw elements according to the invention.
First claim
Opening claim text (preview).
The invention claimed is: 1. Screw elements for multiscrew extruders having a pair of barrels, the screw elements comprising an intermeshing pair of screw elements, with paired co-rotating and fully wiping screw shafts, configured to be positioned within the pair of barrels, comprising a first screw element and a second screw element and having a number (Z) of screw flights indicative of a number of arcs of each screw element that are adapted to wipe an outer wall of each barrel w…
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Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8979355B2 cover?
- The present invention relates to screw elements for multiscrew extruders with pairs of co-rotating and fully wiping screws, to the use of these screw elements in multiscrew extruders and to a method of generating screw elements according to the invention.
- Who is the assignee on this patent?
- Bierdel Michael, König Thomas, Liesenfelder Ulrich, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification B29B7/481. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 17 2015 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).