Camber control for rail vehicles
CA 2278679 C · Owner: Benker, Thomas · Inventors: Benker, Thomas; Bernd, Metzner
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 camber control for the superstructure of a rail vehicle, comprising a transversal acceleration sensor (1) and a camber control device (2-4) controlled therefrom for cambering the superstructure along its longitudinal axis in relation to the running gear or the bogie supporting the superstructure. A low-pass filter (3) is connected in the signal path between the transversal acceleration sensor (1) and the camber control device. In order to at least amply compensate the operation time of the low-pass filter a steady state member (2) is connected in the signal path between the transversal acceleration sensor (1) and the low-pass filter (3) whose output , …
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 15, 1998 and granted July 2, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 15, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 15, 2020.
- 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.