Gripper bar for gripping plate-shaped matter within a machine to be used for producing packages
CA 2038120 C · Owner: Chiari, Mauro · Inventors: Yerly, Marcel; Chiari, Mauro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A gripper bar fitted on drive chains to grip and carry plate-shaped articles or sheets through a printing cutting, and, similar machines with a view to producing packages includes a, hollow profiled bar (100) on which grippers are fitted. Every gripper consists of a flat spring (110) attached at one end (100a) to the downstream edge (100d) of the bar (100) the other end, (100b) having a rest position on the gripper counter-part (125) situated at the upstream end (100c). The flat spring (110) the length of which is larger than the width of the bar (100) passes through the latter bar before reappearing through a window (112) of the upstream edge (100c) of the bar (100).
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 March 12, 1991 and granted October 11, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 12, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 12, 2013.
- 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.