Inclined grate apparatus for use in the combustion chamber of a combustion furnace
CA 1285182 C · Owner: A. Ahlstrom Corporation · Inventors: Linsen, Lauri G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An inclined grate construction or apparatus in the combustion chamber of a combustion furnace, comprising a plurality of adjacent grate tubes in the longitudinal direction of the grate, said tubes being welded together through flat bars. Below the grate is disposed a grate bar carriage which, in, use, reciprocates horizontally respective to the grate. The grate bar carriage supports at least one grate bar which is, pushed through the grate via an opening in the flat bar between two adjacent grate tubes when the grate bar carriage moves towards the grate. The grate bar carriage is also vertically displaceable.
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 June 25, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 25, 2008.
- 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.