Method and detection system for monitoring the speed of a lift cage
CA 2544106 C · Owner: Gensicke, Karsten · Inventors: Birrer, Eric; Latorre Marcuz, Carlos; Gensicke, Karsten
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In this method the speed of a lift cage is monitored. In the case of excess speed caused by , brake failure of the motor brake or shaft fracture of the drive pulley shaft the safety circuit , is opened and the detection system is transferred from the normal operational state (circle , with a 1) to the retardation state (circle with a 2) in which it is monitored whether the lift , cage is retarded after defined speed presets. After a successful retardation the detection , system is transferred to the state of standstill monitoring (circle with a 3) in which it is , monitored whether the lift cage leaves its standstill position. If the presets of state 2 or , state 3 are not fulfilled …
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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 April 19, 2006 and granted June 17, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 19, 2026.
- 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.