Draw-in device and process for feeding webs of material into a printing machine
CA 2124868 C · Owner: Manroland Ag · Inventors: Theilacker, Klaus; Burger, Rainer
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A draw-in device for feeding a plurality of printing stock webs preferably paper, webs, in which draw-in elements of finite length grasp the start of a paper web and draw it out of reel changers and draw mechanisms through printing units and up to folding units. An electronic memory is provided in which are stored the lengths of all possible feed paths in the printing machine and the draw-in elements can be switched on at different times corresponding to the different lengths of the feed paths and the resulting time differences at a given feed rate via an electronic computer connected with the memory and can be switched off simultaneously. It is also possible to refeed a web of printing …
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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 June 1, 1994 and granted November 25, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 1, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 1, 2016.
- 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.