Method for the analysis of a gas sample, analysis arrangement, uses thereof and test plant comprising the said arrangement
CA 2074939 A1 · Owner: Nuenlist, Rene · Inventors: Nuenlist, Rene; Mukrowsky, Michael; Matter, Ulrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Rapid sequences of gas samples (G) are taken to a semiconductor sensor (60a,b,c) for analysis. The analysis procedure is accelerated by differentiating the semiconductor sensor output signals in time (61) and taking successive gas samples (59) to the semiconductor sensors (60a to 60c) sequentially. In cycle stages in which the semiconductor sensor concerned (60a to 60c) receives no gas samples, the lines and casing are flushed with gas (S). The effect of the flushing process on the semiconductor output signal (A) is minimised by adjusting the flushing gas and/or the flow rate ratio between the flushing gas and the gas sample in the semiconductor region.
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 December 4, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 4, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 4, 2013.
- 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.