Method and apparatus for the continuous extrusion of solid articles
US5189092A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 8, 1991 |
| Grant date | Feb 23, 1993 |
| Priority date | — |
| Expiry date | Apr 8, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2948/92904
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and apparatus for the continuous extrusion of composite solid articles from feed mixtures comprising a substantially uniform mixture of particulate binder material and particulate primary material in which the feed mixture is forced through an extrusion die of substantially uniform cross-section and subject to heat, pressure and cooling which consolidates the feed mixture whereby it emerges from the die as a solid composite article and in which the pressure in the extrusion die is supplied by back-pressuring means external of the die. Solid filter elements of activated carbon particles for a wide variety of filtering applications may be formed using the process and apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.