Method for positioning a sensor for a web movement control device
CA 2089249 A1 · Owner: Nacke, Theodor · Inventors: Nacke, Theodor; Schrauwen, Hans Joachim; Bettfuhr, Jurgen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a method for positioning a sensor for a web movement control device, in which the sensor executes an edge search process, in order to achieve a rapid and exact positioning of sensors by specifying a relatively early stop threshold for the sensor movement the after-, running of the sensor is detected in that after the after-running position is detected by the sensor signal the difference between the preset stop value and the stop value actually reached is formed and specified as the new stop value, after which the edge search process is repeated with the corrected stop value.
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.