Railway bogie with frame having selective deformability
CA 2103028 A1 · Owner: Sambre Et Meuse (Societe Anonyme) · Inventors: Lienard, Jean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Company called:, USINES ET ACIERIES DE SAMBRE ET MEUSE "Railway bogie with frame having selective deformability" (Invention of Jean LIENARD), The sole-bars (1) bear on the axles by means of elastic suspensions (12) with frictional damping. The bolster (18) bears by means of elastic blocks (32) on the lower side of a window (24) made through each sole-bar. Each elastic block (32) bears on a face (31) of the sole-bar which has, in relation to the longitudinal direction (L) of the bolster (18), an inclination (A) such that the compressive force (F) of the elastic block has a horizontal component (FHT) which pushes the solebar so as to bear by its reference face (26) against a conjugate …
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 May 14, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 14, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 14, 2014.
- 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.