Pivoting head continuous tamper
CA 1180947 A · Owner: Canron Corp. · Inventors: Cicin-Sain, Ivo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A track tamping machine particularly a track tamping levelling and, lining machine is equipped with at least one tamping unit including a carrier which carries tamping tools. The tamping unit is vertically movable on a sub-frame by means of a hydraulic cylinder and is fastened thereto. The sub-frame itself is suspended from the chassis of the tamping machine pivotably like a pendulum. The sub-frame has two guide columns guiding the tool carrier through its vertical motion and at, its lower end guide rollers which revolve on rail for the purpose of centering the tamping unit. A control cylinder is activated for the purpose of swinging the tamping unit in such a way that while the machine is …
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 15, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 15, 2002.
- 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.