Mobile track tamper
CA 1045901 A · Owner: Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. · Inventors: Theurer, Josef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mobile track tamper comprises a frame and a tamping head vertically movably mounted thereon the tamping head, including a pair of vibratory ballast tamping tool implements arranged for reciprocation in the direction of track elongation and capable of tamping ballast under track ties upon vertical downward movement of the tamping head and immersion of the tamping tool implements in the ballast. Each implement is a rigid unit which consists of a tamping tool holder and tamping tools mounted thereon. The tamping tool holder has an arm mounted on the tamping head for pivoting in a vertical plane passing through the rail and two arms extending transversely of the track from the vertically …
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 January 9, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 9, 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.