Purification system
CA 1292941 C · Owner: Agence Quebecoise De Valorisation Industrielle De La Recherche (L') · Inventors: Csabai, Julius S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a fume purification system used in conjunction with food cooking equipment. The fumes which are generated during cooking pass through a plurarity of filter balls washed by an oxidizing liquid which removes the greasy contaminants from the said fumes. A cooling coil is also used in conjunction with the filter balls to accelerate the condensation of the fumes. If required, a charcoal filter is placed before the purified air is returned to the atmosphere or recirculated in the system.
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 December 10, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 10, 2008.
- 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.