Process for producing wet rubber masterbatch, wet rubber masterbatch, and rubber composition containing wet rubber masterbatch
US-10253141-B2 · Apr 9, 2019 · US
Screw intended for the extrusion or mixing of elastomers and method for fitting same
US9409339B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9409339-B2 |
| Application number | US-201213982447-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 6, 2012 |
| Priority date | Feb 9, 2011 |
| Publication date | Aug 9, 2016 |
| Grant date | Aug 9, 2016 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
The screw is intended for the extrusion or mixing of elastomers or plastic products. It comprises: a support, at least one sleeve having at least one relief projecting from an external face of the sleeve, and at least one split annular securing member, the member being clamped between the sleeve and the support in a radial direction with respect to an axis of the screw so as to secure the sleeve rigidly to the support. The member and the sleeve have frustoconical faces in mutual contact.
First claim
Opening claim text (preview).
What is claimed is: 1. A screw intended for the extrusion or mixing of elastomers or plastic products, comprising: a support, at least one sleeve having at least one relief projecting from an external face of the sleeve, and at least one piece split annular securing member, the member being tightened between the sleeve and the support in a radial direction with respect to an axis of the screw so as to secure the sleeve rigidly to the support, the member and the sleeve having frustoconical faces in mutual contact. 2. The screw according to claim 1 , in which the sleeve, or at least one of the sleeves, exhibits a wall thickness smaller than or equal to 10 mm. 3. The screw according to claim 1 , in which the member or the one at least of the securing members is split in a parallel direction with respect to a principal axis of the member. 4. The screw according to claim 1 , in which the securing member exhibits at least two splits. 5. The screw according to claim 4 , in which the splits or at least two of the splits extend from respective different end edges of the member. 6. The screw according to claim 1 , in which the member exhibits a total length lower than a total length of the sleeve. 7. The screw according to claim 1 , in which the securing member is in contact with the sleeve via a single frustoconical contact face of the member. 8. A device for the extrusion or mixing of elastomers or plastic products, comprising a screw according to claim 1 . 9. The screw according to claim 2 , wherein the wall thickness is smaller than or equal to 3 mm. 10. The screw according to claim 4 , wherein the securing member exhibits at least four splits.
Assignees
Inventors
Classifications
Exchangeable extruder parts (B29C48/691 takes precedence) · CPC title
Mounting or handling of the screw · CPC title
characterised by the shape of the extruded material at extrusion · CPC title
using screws surrounded by a cooperating barrel, e.g. single screw extruders · CPC title
Use of unspecified rubbers as moulding material · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9409339B2 cover?
- The screw is intended for the extrusion or mixing of elastomers or plastic products. It comprises: a support, at least one sleeve having at least one relief projecting from an external face of the sleeve, and at least one split annular securing member, the member being clamped between the sleeve and the support in a radial direction with respect to an axis of the screw so as to sec…
- Who is the assignee on this patent?
- Annet Pierre, Cie General Des Etablissements Michelin, Michelin Rech Tech
- What technology area does this patent fall under?
- Primary CPC classification B29C47/6012. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Aug 09 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).