Single-facers for corrugated board and machines
CA 1135293 A · Owner: Mitsubishi Jukogyo Kabushiki Kaisha · Inventors: Seki, Yukuharu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a corrugating roll for a single-facer for corrugated board of the kind comprising a pair of corrugating rolls providing meshing fluted surfaces for corrugating a web fed therethrough and in which one face of the corrugated web is attached to a liner web. An object of the invention is to provide a single-facer of this kind which, compared with known arrangements, is simple to manufacture and easy to maintain. The invention is characterized in that said corrugating roll is in the form of a roll cell fluted on its outer peripheral surface, a plurality of grooves are provided at appropriate spaced intervals along the outer peripheral surface of said roll cell so as to …
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 9, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 9, 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.