Railway axle with orientable wheels and variable width
CA 2095632 C · Owner: Debaille, Pascal · Inventors: Vandamme, Michel; De Ro, Michel; Debaille, Pascal
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A railway axle with or-, ientable wheels (8) is compensated in width when passing, on a railway track curve when the side beams (5, 5') arranged, under a frame (2) with dropped floor (3) are coupled, to each other by means of at least one connecting rod de-, vice (11) comprised of a broken rod (13) hinged at the, breaking point to a lever-relay (15, 25) carried by the axle so, as to entrain the breaking point in an angular displace-, ment of an arc of a circle in a direction opposite to that of the side beams (5, 5') in order to reduce the breaking handle of the broken rod (13) and to compensate for the width loss of the axle when taking curves.
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 October 25, 1991 and granted July 24, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 25, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 25, 2013.
- 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.