Method for treatment of wood
US6183812A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 27, 1998 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | May 27, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB27K3/086
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for treatment of one or more wood elements by pressurization comprises the steps embedding the wood elements into a pressure medium, of increasing the pressure in the pressure medium, whereby the wood element is compressed by transmitting the pressure via the pressure medium to the wood elements, and of reducing the pressure in the pressure medium, whereby the wood element is relieved. During the treatment, liquid present in the wood elements is driven out therefrom. The pressure medium comprises a plurality of solid bodies with intermediate spaces. The solid bodies transmit the pressure to the wood elements such that a pressure difference arises between the wood elements and said spaces, which pressure difference drives out the liquid. During the relief phase, the wood elements substantially resume their original shape. The method can also be used for introducing impregnating liquid into the wood elements after the liquid expulsion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.