Hot water or steam boiler
CA 1094410 A · Owner: Osby Varme Ab · Inventors: Ek, Finn U.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a boiler for steam or hot water comprising a furnace section defined substantially in its entirety by top, bottom and sidewalls formed of closely arranged horizontally and vertically extending liquid or steam tubes respectively; a plurality of vertically extending and horiztonally spaced liquid or steam tubes positioned within said furnace section to form a partition wall dividing same into first and second chambers, said partition wall extending transversely to the flow of combustion gases; said horizontally and vertically extending tubes by the aforesaid arrangement being exposed to combustion radiation and flue gases within said furnace section; a …
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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 27, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 27, 1998.
- 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.