Apparatus for correcting the level and cross level of a track
CA 1238521 A · Owner: Plasser (Franz) Bahnbaumaschinen-Industriegesellschaft M.B.H. · Inventors: Bock, Gernot; Theurer, Josef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A track leveling lining and tamping machine comprises a track lifting assembly, a leveling reference system associated with the track lifting assembly the reference, system including a reference line associated with each track rail, each reference line having a forward end and a rear end, a forward track sensing element supporting the forward end of the reference lines in an uncorrected track section a rear track sensing element supporting the rear end of the reference lines in a corrected track section and a level, sensor associated with each track rail and supported on a corrected track section rearwardly of the track lifting assembly for measuring the level of each track rail with …
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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 June 28, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 28, 2005.
- 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.