Side sills for two-axle railroad freight cars
CA 2118611 A1 · Owner: Keil, Klaus · Inventors: Keil, Klaus; Kohler, Gunter; Bieker, Guido
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Side sills for two-axle railroad freight cars transmit horizontal buffer forces, accept a vertical cargo load and support devices for mounting axles. The object of the invention was to provide a side sill for two-axle railroad freight cars which was formed of simple economically produc-, ible components, which allowed a simple and economical configuration of required cross members which reduced noise, emission of a running gear and which improved aerodynamic properties in the region of an underframe. Therefore the, side sill of the invention is formed of a single metal sheet of uniform wall thickness being bent a number of times and extending from buffer beam to buffer beam of the railroad …
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 9, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 9, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 9, 2016.
- 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.