Extrusion die assembly for forming honeycomb structures
US4278412A · kind A · utility
14Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1979 |
| Grant date | Jul 14, 1981 |
| Priority date | — |
| Expiry date | Jun 12, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/60
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Extrusion die assembly for forming honeycomb structures, which comprises a die having a discharge surface provided with grid-shaped slits for discharging a honeycomb shaped body and an inlet surface provided with a plurality of independent feed inlets, a mask having an orifice for determining the outer shape and dimension of the extruded honeycomb structure and a ring having an orifice for restraining supply of the batch material into the feed inlets at the periphery of the inlet surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.