Method for processing rough timber
CA 1295790 C · Owner: Erdosi, Gyorgy · Inventors: Erdosi, Gyorgy; Osvath, Peter; Balint, Laszlo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a rough timber processing method during which the wood e.g. sawn wood that is prepared for seasoning is dried in a way that is known in itself; in a kiln, at a temperature of between 40°C and 100°C, down to a moisture-content of a least 30 per cent. According to the invention nitric acid is mixed with a solution of distilled water and alkaline earth metal salt, and this mixture is sprayed into the drying kiln at least one time. The spray loosens the pectine of the fibre that blocks the evaporation of the moisture while, the alkaline earth metal is being built amongst the fibres of the wood.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted February 18, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 18, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.