Thermal gas flowmeter comprising a gas quality indicator
CA 2496489 A1 · Owner: Ems-Patent Ag · Inventors: Kramer, Beat; Sabbattini, Bruno; Matter, Daniel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method and a device for measuring gas consumption by means of a gas meter (1). A gas meter (1) comprising a thermal flow sensor (1a) for determining mass flow signals (SM) and a calibrating device used as an energy measuring appliance for emitting energy value signals (SE) is known. According to the invention, a gas type is determined by the gas meter (1) insofar as combustible and non-combustible gas mixtures (3) are differentiated. For a non-combustible gas mixture (3) the gas meter (1) is , operated with calibration in mass units or units of volume under standard conditions (1/min), and for a combustible gas mixture (3) with calibration in , energy units …
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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 July 22, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 22, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 22, 2025.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.