Method and apparatus for manufacturing fibre board sheets
CA 1315064 C · Owner: Sunds Defibrator Aktiebolag · Inventors: Sofstrom, Christer
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and an apparatus for manufacturing fibre board sheets according to the dry method. The fibre material is defibered in a defibrator (3), mixed with resin (7) and dried with hot gas in a tube drier (5). After the drying the drying gas is separated in a cyclone (15) whereafter the fibre material in a forming station (16) is formed to a fibre mat, which is pressed in a pre-press (27) and finally pressed in a hot-press (28). Due to the location of the cyclone (15) above the forming station (16), the fibres are transferred directly from the drying to the forming with substantially maintained temperature, which reduces the energy demand.
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 March 30, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 30, 2010.
- 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.