Railway truck; pivotal connection
CA 1167701 B · Owner: Urban Transportation Development Corporation Ltd. · Inventors: Sobolewski, George
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A steerable truck includes a pair of axles supported in steering yokes that are pivotally connected to one another for equal and opposite steering motion. The yokes support a pair of longitudinal side frames that are connected to the yokes by lateral links. The links act to centre the yokes and allow steering movement relative to the truck. The links also permit a torsionally flexible truck to accommodate uneveness in the track. One of the yokes is connected to the vehicle body by a parallelogram draft linkage to prevent lateral sway of the vehicle inducing steering motion of the truck. Dynamic response of the truck may be adjusted by connecting a link between the bolster and the draft …
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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
- Granted May 8, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 8, 1996.
- 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.