Methods for generating interfacial surfaces and devices therefor
US11577440B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2019 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | May 21, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/255
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Embodiments of the present invention include a novel interfacial surface generator (ISG) design comprised of helical channels and associated methods of using the new design. The novel design addresses processing challenges associated with conventional ISG designs used in layer multiplying coextrusion systems. Embodiments of the present invention may be used in either a static configuration or “active” configuration. In one active configuration, two counter-rotating cylindrical rods and/or moving belts may be used to induce drag, or Couette, flow. Conveyance of materials through the ISG may be due to pressure driven flow, drag flow, or a combination of these.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.