Apparatus and method for measuring gases using an athermal optical multipass cell
CA 2258588 A1 · Owner: Ametek (Canada), Inc. · Inventors: Frish, Michael B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus measures the concentrations of gases within a high temperature gas composition. The apparatus includes an athermal optical multipass cell (e.g. a Herriot cell), an optical device and a detector. The cell which , receives a high temperature gas composition includes a mounting structure , that supports a pair of concave mirrors oppositely disposed along a common axis and separated by a selected distance. One mirror includes an orifice through which an input beam of light from a light source enters the cell. The beam is repeatedly reflected between the mirrors before exiting the cell through the orifice as an output beam. The mounting structure supports the mirrors at the …
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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 June 23, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 23, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 23, 2019.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.