Ventilated honeycomb cell sandwich panel and ventilation process for such a panel
CA 2212332 A1 · Owner: Gonidec, Patrick · Inventors: Le Docte, Thierry Jacques Albert; Vauchel, Guy Bernard; Gonidec, Patrick
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The panel is capable of benefiting from forced ventilation by means of a ventilatory flow through its perforated honeycomb cells, making use of the differences in pressure on either side of the panel or along the panel. The two external walls (61E 61I) have, for many, honeycomb cells (65 67), holes in the first wall, (61E), holes (66) in the second wall (61I) and several holes (68) in the internal partitions (62) so as to allow air to circulate in different ways through the honeycomb cells to be ventilated. Use for all panels that may need to be cooled and in particular, to the rotating wall between the hot and cold flows of a turbojet engine.
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 August 5, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 5, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 5, 2019.
- 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.