Flow rate sensor
CA 2267993 A1 · Owner: Caudill, Eric B. · Inventors: Caudill, Eric B.; Khadkikar, Prasad S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flow rate sensor includes a substantially cylindrical sensor body having an inlet end and an outlet end, and a flow channel formed between the two ends of the sensor through which a liquid can flow an ambient, temperature sensing device and a heated temperature, sensing device wherein the flow rate of the liquid in the flow channel can be calculated by measuring the temperature drop of the heated temperature sensing device. The sensor may also include: a flow equalizer for generating a known flow profile across the ambient temperature sensing device; a constrictor located near, the heated temperature sensing device for improving the, response and consistency of the measurement of the …
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 April 7, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 7, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 7, 2021.
- 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.