Device for the determination of the quantitative composition of gases
CA 1256302 A · Owner: Bbc Brown, Boveri & Company Limited · Inventors: Knab, Hans-Josef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A device for the determination of the quantitative composition of gases, The device is used in the determination of the quantitative composition of gases dissolved in the insulating oil of oil-insulated electrical apparatus. It consists of a device for removing insulating oil samples a pump ar-, rangement for the extraction of the gases from the insulating oil sample by means of reduced pressure and for conveying it to an analytical section. This device is intended to operate directly on the electrical apparatus to be investigated. This is achieved in that the device is constructed in a transportable manner and incorporates a peristaltically operating pump arrangement. This pump …
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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
- Granted June 27, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 27, 2006.
- 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.