Installation with support means for driving a lift cage, and corresponding support means
CA 2553299 C · Owner: Inventio Ag · Inventors: Ach, Ernst
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Lift installation (10) with a support means (13) and a driven drive pulley (16) for driving a lift cage (11). The support means (13) loops around the drive pulley (16) at least partly and comprises a safety section (17) which is so arranged that the safety section (17) interacts with the drive pulley (16) when the lift cage (11) or the counterweight (12) after overrunning an upper position (X) approaches an upper shaft end (14.1). The safety section (17) is formed in such a manner that a slipping through results due to the interaction between the drive pulley (16) and the support means (13).
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 July 21, 2006 and granted October 8, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 21, 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.