Metal sheet prelubrication transfer system
CA 2005287 A1 · Owner: Armco Inc. · Inventors: Caudill, Forrester
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus and method for coating a surface of a moving metal sheet with a thin film of lubricant having a uniform thickness. The apparatus includes a lubricant applicator roller having an absorbent and tear resistant surface for engaging the metal sheet a backup, roller for engaging the applicator roller a header assembly including, nozzles evenly spaced across the passline of the metal sheet for delivering lubricant into the nip formed between the applicator roller and backup roller, and means for controlling and providing intermittent flow of lubricant through the nozzles. The method includes vertically displacing the applicator roller until it contacts the moving metal sheet and …
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
- Filed December 12, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 12, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 12, 2011.
- 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.