Device for the sequential introduction of plates in a shaping (forming) machine
CA 2015552 C · Owner: Gibert, Henri · Inventors: Gibert, Henri
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a device for the sequential feeding of plates or sheets placed in the feed station of a shaping or forming machine and which comprises at least one linear feed member that passes around a return pulley and is attached at both of its ends on a governing pulley imparted with a back and forth rotative motion, and at least one vacuum chamber formed by chambers or boxes that can be individually isolated by means of an obturation device and connected together to a source of vacuum. Small rollers or discs with a broken circumference are placed under the upper side of the linear introduction member and their angular blocking is achieved in synchronism with the linear motion of the …
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 April 26, 1990 and granted February 22, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 26, 2012.
- 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.