Process and installation for producing aluminium cans for beverages or foodstuffs
CA 2133312 A1 · Owner: Mn Maschinenbau & Engineering Martin Nussbaum · Inventors: Nussbaum, Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates a process for manufacturing beverages cans made of aluminum comprising the following process steps: coating of pure-aluminum slugs (10) with a soap-based lubricant; impact extrusion of the slugs (10) to form cups (20); ironing the cups (20) to form can bodies (30) with simultaneous molding of the bottom; cutting the can bodies (30) to length; cleaning the can bodies cut to length by washing with a mildly alkaline, aqueous cleaning medium, rinsing and drying; lacquering the can bodies cut to length and cleaned; necking and flanging the can bodies cut to length and cleaned, to form finished beverage cans (40). The can (40) manufactured in accordance with the 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
- Filed January 25, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 25, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 25, 2016.
- 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.