Stacking and turning device for a so-called printing/cutting machine producing packaging boxes
CA 2067984 A1 · Owner: Bobst S.A. · Inventors: Schweingruber, Hermann; Gut, Emile
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a device designed for building up a stack of aligned packing box blanks and turning the stack. To this aim, the device includes four movable stores angularly arranged on a rotary support, as well as four fixed corresponding work stations. The rotary support effectuates a 90° stop-and-go rotation. In the first station, a stack is built up with blanks provided by a first conveyor. In the second station the stack, which is subjected to an aligning action on its sides due to the 90° rotation of the support rests with the edges of its blanks in the fourth store. In the third station the stack whose blanks, are again in flat position though inverted with regard to 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 May 5, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 5, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 5, 2014.
- 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.