Hot water production appliances
CA 1319575 C · Owner: Le Mer, Joseph · Inventors: Le Mer, Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a single or double circuit hot water production appliance comprising, for the water one, or two nests of parallel vertical coaxial tubes (1) connecting together two rings (2,3)which are also coaxial and for the, combustive air admitted, an external jacket (7) with double wall and, finally, for the combustion gases an, annular intermediate sleeve (9) and a central discharge chimney (10, 11). The burner (14) fed with pressurized fuel gas (at 16) is disposed annularly between the upper ring (3) and the top of the chimney (11) and it is adapted so as to generate downwardly oriented flames. An inclined bottom (29) collects the condensates.
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 June 29, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 29, 2010.
- 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.