Method and device for determining substance parameters of liquids
CA 2272931 A1 · Owner: Kathofer Ets Gmbh · Inventors: Graute, Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A measurement process and an embodiment of a device are disclosed for example , for determining by ultrasonic waves the density of liquids contained or transported in containers or tankers. An ultrasonic probe (3) inserted into the container consists of an ultra-sound conducting tube (9) which contains at its lower end a first ultrasonic sensor (5) for measuring the filling level and a second ultrasonic sensor (7) for measuring the distance from the container bottom (13). The effective filling level is calculated from these two measurement values and the filling volume from the tank curve. Special chemical or technical characteristic parameters (such as concentration mixtures, …
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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 November 21, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 21, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 2019.
- 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.