Machine arrangement for picking up, storing and distributing the ballast of a track
CA 2077367 C · Owner: Worgotter, Herbert · Inventors: Theurer, Josef; Worgotter, Herbert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A machine arrangement (1) for picking-up storing and, distributing the ballast of a track (2) consists of a ballast pick-up device (24) composed of rotatable brushes a ballast, transporting device (25) coordinated therewith and projecting over one end of a machine frame (23), a ballast store (8) which has a conveyor belt (10) extending in the longitudinal direction of the machine or of the track and a plough (16, 17) designed so as to be vertically adjustable. The ballast plough (4) and the ballast store (8) are disposed on a first machine frame (7), in the working direction of the machine arrangement (1), the ballast store (8) having outlet openings (11) located before the ballast plough …
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
- Filed September 2, 1992 and granted March 11, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 2, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 2, 2014.
- 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.