Flow forming member that reduces the disadvantageous effects of thermal degradation in the boundary layers
US5941637A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 1997 |
| Grant date | Aug 24, 1999 |
| Priority date | — |
| Expiry date | Dec 18, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/32
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The flow forming member for a polymer melt comprises an inlet point as well as an outlet point, a tubular channel connecting these points and a rod-like body arranged along the channel axis. At least one static mixing element is arranged in the channel, preferably at least two static mixing elements are arranged one after the other. The mixing elements have apertures for the accommodation of the rod-like body. A firm connection exists between the body and the mixing elements. A minimum gap is provided between the mixing elements and the channel wall which permits a displacement of the body in the channel or an insertion into the channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.