Apparatus for extruding a polymeric material and extrusion head therefor
US9120262B2 · kind B2 · utility
4Cited by
13References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2013 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | Oct 16, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2030/003
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for extruding a polymeric material, having an extrusion head which includes a male die, a female die coaxially arranged with respect to the male die, a conveying channel, and at least one portion of which is defined between the male die and the female die. The apparatus further includes a device for adjusting a cross-sectional area of the at least one portion of the conveying channel by reciprocally displacing the female die with respect to the male die in response to an extrusion speed variation of the polymeric material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.