Pulp degassing
CA 1182762 A · Owner: Kamyr, Inc. · Inventors: Gullichsen, Johan E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Pulp degassification is effected by a, structure (10) that may be mounted on a pulp treatment vessel (12), such as an oxygen reactor blow tank. The degassifier includes a housing (14) that is substantially circular in crosssection and tapers from a first end (15) to a second end (16) along a central axis. A pulp inlet (20) is adjacent the first end and introduces pulp tangentially and an outlet (24) is adjacent the second end extending concentrically with the central axis. A blade assembly (26) is mounted for rotation about an axis (A-A) generally coincident with the housing central axis and the, blade assembly is rotated to impart a high speed rotational velocity component to the pulp as …
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 19, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 19, 2002.
- 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.