Means that provide a seal for the covers of suction boxes in papermaking machines, and covers of suction boxes that adopt said improvements
CA 1088789 A · Owner: I.A.R.E.E. Di Glauco Corbellini · Inventors: Corbellini, Glauco
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improvements to means that provide a seal for covers of suction boxes in paper-making machines are provided by making this seal with blocks of an elastic material which can be positioned as wanted along the suction channels bounded by the dewatering foils that make-up the covers; means are also provided to position and to clamp these blocks.
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 November 4, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 4, 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.