Infrared-based gas detector
CA 1319833 C · Owner: Atomic Energy Of Canada Limited · Inventors: Howe, Philip Terence
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A nondispersive gas analyzer for use in monitoring the concentration one or more gases, comprises a body having a cavity having an elliptical reflecting surface defining a, first focus and a second focus for transmitting radiation, between the focuses a chamber for holding a sample gas to, be analyzed one of the focuses being located within the sample chamber, a chamber for holding an inert gas and a chamber for holding an analyte gas, a radiation source disposed at one of the focuses, and a radiation detector associated with each of the inert gas chamber and the analyte gas chamber for detecting the radiation passing through the sample gas and the inert gas and the radiation passing …
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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 July 6, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 6, 2010.
- 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.