Anodizing and press-lubricating aluminum sheet
CA 1291962 C · Owner: Bl Technology Limited · Inventors: Sheasby, Peter Geoffrey; Maddison, Anthony; Davies, Nigel Cleaton
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are aluminium sheets suitable for forming a structure of press-formed components secured together by adhesive and a method for producing such aluminium sheet. The sheet has an anodic oxide layer formed thereon by having been subjected to an anodizing process in an acidic electrolyte for a period of 2 minutes or less and an adhesive compatible press-lubricant on the anodic oxide layer. The invention enables structures to be fabricated from aluminium components which have undergone a rapid pre-treatment but nevertheless gives rise to bonds of strength and durability compatible to those achieved using the Boeing process.
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 12, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 12, 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.