Improved inshot burner cluster apparatus
CA 2058721 C · Owner: Evens, Lance J. · Inventors: Evens, Lance J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The improved inshot burner cluster apparatus of the present invention functions to, provide combustion of a gaseous fuel and air mixture which is injected through an aperture, in the inlet plate into the combustion compartment of a heat exchanger and , includes a, burner cluster which may have a selected multiplicity of burners formed from an inter-, joined upper half shell and a lower half shell The modular, and essentially , clam-shell form of construction allows for ease of forming the burner elements by embossing the sheet, metal half shells for example using a progressive type of punch press die which can, thereafter cut-off any number of burners to form a burner cluster.
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 January 3, 1992 and granted July 2, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 3, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 3, 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.