Press for producing pressed board by treating the material with steam
US5195428A · kind A · utility
16Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 7, 1991 |
| Grant date | Mar 23, 1993 |
| Priority date | — |
| Expiry date | May 7, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB30B15/064
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A press for the production of pressed board with injection of steam utilizes press platens to which the steam is fed to the steam-feed channels from opposite sides in a collision flow, the channels communicating with steam-nozzle bores opening at the pressing surface and such that the cross section of each channel is equal to at least 60% of the total flow cross sections of the boards communicating with that channel. Before the pressing commences, the channels are through-flushed with steam to flush air from the channels and bores and to evacuate air from the pressed mat by a venturi effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.