Method of fibre separation
CA 1084752 A · Owner: Commonwealth Scientific And Industrial Research Organization · Inventors: Mamers, Heikki; Rowney, John E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A uniquely designed nozzle is described for assisting the liberation of fibres from cellulosic material during an explosive defibration process. The nozzle is constructed with a plurality of internal bars so as to provide a tortuous path to the material passaging therethrough from a region of high pressure to a region of low pressure. - 1 -
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 September 2, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 2, 1997.
- 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.