Dewatering press
CA 1289398 C · Owner: Eriksson, Hans E.K. · Inventors: Eriksson, Hans E.K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The press is intended for dewatering of pulp and comprises two rotatable press rolls (1,2), of which at least one is provided with elastically resilient shell surface so that, the rolls together form an extended nip (8). The roll with the elastic shell surface is formed with a plurality of elastic supports (12) extending all about on which supports, a thin perforated shell sheet (13) is located.
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 24, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 24, 2008.
- 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.