Inputting or adjusting reference positions in a door controller
CA 2521704 C · Owner: Grundmann, Steffen · Inventors: Grundmann, Steffen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a door controller (11) and a method for inputting or adjusting one or more reference positions (X2) into the door controller (11). The controller is connected to a driver (9) for moving a door (2) and comprises means (8) for monitoring a position of a door (2) and a non-volatile memory (14) for storing the reference position. In a learning mode the control force signal to the driver is reduced. Then the door (2) is moved to the reference position (X2) and finally the reference position as recorded by the position monitoring means is registered in the memory (14) of the controller (11).
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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 September 29, 2005 and granted February 12, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 29, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.