Filling car for a coke oven battery
CA 2017540 C · Owner: Hartung, Kuhn & Co. Maschinenfabrik Gmbh · Inventors: Schroter, Horst
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A filling car for filling coal in oven chambers of a coke oven battery comprises a telescopable filling pipe having an upper part and a lower part and a lower end to be lowerable to a filling frame of a filling opening of a coke oven battery, a supporting ring in which the lower part of the filling pipe is supported for turning about a horizontal axis a liftable and lowerable supporting bracket in which the supporting ring is held, means for suspending the lower part of the filling pipe in the supporting ring and including two oppositely located hinge arms, and means for holding the supporting ring on the supporting bracket and including two oppositely located pivot pins arranged so that …
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 May 25, 1990 and granted April 21, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 25, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 25, 2012.
- 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.