Device and method for positioning the sensors of a web movement control device
CA 2089246 A1 · Owner: Bettfuhr, Jurgen · Inventors: Schrauwen, Hans Joachim; Nacke, Theodor; Bettfuhr, Jurgen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In order to reach the originally set web position again with a web movement control device after a tear in the web and renewed drawing-in of a web of material sensors which can be adjusted independently of one another and can be coupled in such a way that the two sensors move synchronously in opposite directions are provided. As a result, during the edge search process the two sensors can be adjusted separately and independently of one another and are moved synchronously in opposite directions for the centre control and after a tear in the web for the purpose of repositioning the sensors.
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 February 10, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 10, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 10, 2015.
- 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.