Roll former and/or cutter with quick automated tool changer
CA 2003702 C · Owner: 3250695 Canada Inc. · Inventors: Vandenbroucke, Jack-Eric
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The apparatus comprises a pair of rotatable devices each holding a plurality of metal shaping and/or cutting rollers, the rollers of one device meshing with rollers of the other device to produce specific designs or widths of material. This is made possible by merely selecting suitable rollers of both sets and when production of a specific metallic section of desired widths are terminated, other rollers are selected by rotating the rotatable devices. When suitable rollers have been selected they are locked in operating position and when another design or widths are required, the devices are unlocked a selection, is made, and the devices are again locked to produce the new metallic section …
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 November 23, 1989 and granted August 31, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 23, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 23, 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.