Gas boiler, particularly for central heating
CA 1046875 A · Owner: Vidalenq, Maurice · Inventors: Vidalenq, Maurice
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Maurice VIDALENQ, ABSTRACT OF THE DISCLOSURE Gas-burning boilers have in a chamber a plurality of finned heat-exchange tubes arranged around a central gas burner which is substantially of the same length as the finned tubes. An extraction fan draws gases from the chamber such that the chamber works under sub-atmospheric pressure which is preferably 12 mm water column or more below atmospheric. Baffles provide that hot gases must pass over the heat-exchange tubes as they go from the burner to the fan. A self-operating pressure regulator may be provided for the chamber, and various advantages constructions of burner are disclosed which give silent and evenly distributed burning of the gases. …
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 January 23, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 23, 1996.
- 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.