Radiant gas burner
CA 2079136 C · Owner: John Zink Company · Inventors: Trimble, Robert R.; Schwarts, Robert E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved radiant gas burner which includes a refractory burner tile having an elongated passageway extending therethrough and a fuel-air mixture burner tube disposed within the passageway. The burner tube is of a one-piece elongated construction, includes a nozzle portion at the interior end of the passageway and is connected to means for introducing fuel gas and air therein by a threaded connection positioned adjacent the exterior end of the passageway. Secondary fuel is discharged from the passageway at a location adjacent the nozzle portion of the burner tube. An improved method of burning fuel gas and air using a radiant gas burner is also provided.
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 September 25, 1992 and granted July 28, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 25, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 25, 2014.
- 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.