Heating apparatus
CA 1249768 A · Owner: Air Products And Chemicals, Inc. · Inventors: Dudill, Roger; Riley, Eric K.; Young, Philip J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Oxygen is introduced through oxygen supply line (5) into an annular gallery (6) which it leaves at high velocity through annular channel (7). The outlet of the annular channel (7) is shaped so that, by virtue of the Coanda effect, the oxygen travels towards the downstream end of the burner (1) substantially parallel to the wall of the tubular body (2). Combustion gas from combustion chamber (13) is induced between support bars (4) into the tubular body (2) by the flow of oxygen and mixes with the oxygen and subsequently with natural gas introduced through fuel supply line (8). The mixture burns at the outlet (9) of the fuel supply line (8). The maximum temperature reached by the gas leaving …
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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 February 7, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 7, 2006.
- 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.