Electrical apparatus and cooling system
CA 2556049 C · Owner: Wood, Andrew Murray · Inventors: Hall, Terence Martyn; Norrington, Stephen John; Hurrell, Stephen William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrical apparatus and cooling system is described having an arrangement , particularly suited to electrical apparatus incorporating devices which produce a significant amount of heat, such as vacuum tube devices. The electrical apparatus has an enclosure cover (22) and a base plate (6) defining an enclosure (20) containing the part of the electrical apparatus to be cooled, and an outer cover (4) enclosing the first to create a surrounding space (26) therebetween. Means (22, 76 and 78) are provided to transfer heat from the enclosure to the surrounding space. Cooling fans (50) and (52) located outside of the surrounding space create a flow of air which passes through a heat …
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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 February 16, 2005 and granted February 5, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 16, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.