Arrangement for fixing an elevator rope
CA 2199966 C · Owner: Mustalahti, Jorma · Inventors: Mustalahti, Jorma; Hakala, Harri; Aulanko, Esko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
According to the invention, at least one end of the elevator ropes (8) is fixed to a guide rail (4, 7) of the elevator. According to an embodiment of the invention, the whole elevator is so suspended by its ropes (8) that all vertical forces are transmitted by the guide rails (4...7) to the bottom (27) of the shaft (1). The invention provides the advantages that the elevator is easy to install and that the vertical forces are transmitted by the guide rails (4...7) to the bottom (27) of the shaft (1) permitting a lighter , construction of shaft walls.
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 September 27, 1995 and granted May 23, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 27, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 27, 2017.
- 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.