Cracking furnace
CA 1329317 C · Owner: Hokkedo, Mamoru · Inventors: Nakase, Noriaki; Yamamoto, Etsuji; Kitayama, Yutaka
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cracking furnace for thermal cracking of hydrocarbon feedstocks, capable of reducing its length site area, wall surface area, and the number of quenching heat exchangers installed, thereby making the apparatus compact and lightweight and reducing damage of parts due to high temperatures, which cracking furnace comprises a central burner provided vertically at the center of the ceiling of a combustion chamber; side burners provided vertically at both sides of the central burner; reaction tubes vertically arranged between the central burner and respective side burners forming, arch bends at the lower part of the chamber and arranged, in rows along the longitudinal direction of the chamber; …
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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 May 10, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 10, 2011.
- 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.