Magnet track braking device
CA 2440182 C · Owner: Lehmann, Henry · Inventors: Lehmann, Henry; Koidl, Hermann
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a magnet track braking device comprising a magnetic base , and/or support body and a pole shoe section containing a magnetic flow guiding area and a , magnetic flow separating area. The invention is characterised in that the magnetic base and , or support body is made from materials having different magnetic characteristics, so that an , increase in induction in the gap between the magnet track brake and the rail head is prevented , when erosion occurs in the pole shoe section.
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 March 8, 2002 and granted May 22, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 8, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 8, 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.