Fuel burner
CA 1081570 A · Owner: Modine Manufacturing Company · Inventors: Shields, Gerald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fuel burning heater comprising a burner for hydrocarbon fuel that produces corrosive products generated by the burning of the fuel, a heat exchanger for the corrosive products comprising sheet metal having a core of a corrodible first metal and surface coatings exposed to said corrosive products of a corrosion resistant second metal, and lock seam joints uniting the sheet metal at the margins. Each lock seam comprises corrodible edges each surrounded and encased by margins of adjacent sheet metal in lapped contact so as to be substantially gas tight at the corrodible edges. An example of such a metal sheet is a soft steel sheet with a ferritic stainless coating ("chromized").
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 July 15, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 15, 1997.
- 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.