Extrusion device for producing honeycomb structures
US4349329A · kind A · utility
38Cited by
9References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 2, 1981 |
| Grant date | Sep 14, 1982 |
| Priority date | — |
| Expiry date | Jan 2, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/60
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An extrusion device comprises a die provided with disconnected feed passageways and interconnected grid-shaped extrusion slots and a die mask which covers the outer peripheral portion of the die on the extrudable material outlet side through a pooling zone. The width of the uncovered grid shaped extrusion slots along the die mask is made larger on the extrudable material outlet side compared with that on the extrudable material inlet side. The extrudable material is supplied from the covered extrusion slots into the uncovered extrusion slots through the pooling zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.