Lime sludge press unit
CA 1138253 A · Owner: Enso-Gutzeit Osakeyhtio · Inventors: Titoff, Juha
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the disclosure, A lime sludge press unit comprising at least two pairs of press rolls, the lime sludge web passing, supported by an endless wire through their press nips and moisture escaping from the lime sludge therein, After the first pair of rolls is located a lime sludge treatment screw transversal to the lime sludge web and which breaks up the pressed lime sludge web and carrying helical threads starting at its ends and opposite in direction so that these both transport the lime sludge from the margin of the web towards its centre.
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 December 28, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 28, 1999.
- 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.