Solenoid arrangement for controlling handle operation in a door lock
CA 2431909 C · Owner: Lemettinen, Jaakko · Inventors: Lemettinen, Jaakko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A solenoid arrangement for controlling handle operation in a door lock in , which , force transmission from an operation axis of a handle or the like to a follower , acting on a bolt of the lock is arranged by means of a movable coupling member which receives its guidance from the solenoid arrangement. The arrangement includes a shaft element which is arranged to move through a solenoid against the , force of a spring and which moves a turnable lever member selecting the operating position of said coupling member. The position of the turning axis of the , said lever member with regard to the coupling member is arranged to be selectively changed to provide a desired handle operation.
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 January 17, 2002 and granted October 4, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 17, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 17, 2024.
- 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.