Railcar moving vehicle
CA 1322895 C · Owner: Siewert, Robert L. · Inventors: Lich, Richard L.; Siewert, Robert L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A railcar moving vehicle having rail wheels for operating on railroad track and having retractable road wheels for operating on road, the vehicle having a main frame and a pivotable frame which is connected to the main frame by a longitudinal pivot, there being mounted on the pivotable frame one rail wheel axle a pair of driven, road wheels, and means for raising and lowering the driven road wheels between inoperative and operative positions whereby both the driven road wheels as well as the rail wheels are capable of oscillating or pivoting action to maintain equal wheel loadings on both the rail wheels and the road wheels.
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
- Granted October 12, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 12, 2010.
- 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.