Method for blanking thin sheets, and in particular metal sheets and elastomeric material of utility for said method
CA 1324570 C · Owner: Isoform · Inventors: De Smet, Gabriel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A punch construction which cooperates with a die for blanking an edge of a sheet of sheet material is disclosed. The punch construction comprises a heterogeneous elastic material having alternating regions having a relatively higher hardness and complimentary regions having a relatively lower hardness. The construction provides a blanking which is cheaper than known blanking methods and yet avoids the formation of burrs.
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 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 23, 2010.
- 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.