Apparatus for tamping or packing the bed of railway tracks
CA 1090657 A · Owner: Matisa Materiel Industriel S.A. · Inventors: Pasquinni, Sandro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for tamping the bed of a railway track comprises a wheel mounted tamping machine frame on which is mounted a vertically displaceable support for tamping tools. The tools are mounted on the tool support in opposed pairs and each tool comprises an arm having at least one pick extending therefrom and provided at its lower end with a blade. A motor driven crank-shaft is journalled in a bearing rigidly connected to the tool support and includes eccentric bearings on each of which the arm of a tamping tool is pivoted by its end remote from the blade so as to impart vibratory oscillations to the tool. So that substantially only generally horizontal vibratory oscillations are transmitted …
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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 December 2, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 2, 1997.
- 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.