Convective attenuation flowmeter
CA 1324003 C · Owner: Lew, Hyok S. · Inventors: Lew, Hyok S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A mass flowmeter comprises a First vibrating conduit (14) and second vibrating conduit (15) disposed in parallel which, combination is connected to a common inlet leg (16) and common outlet leg (17), and a combination of electromagnetic vibrator an motion sensor (20 and 21) that induces and measures the flexural vibrations of the two vibrating conduits (14 and 15). The mass flow rate is determined by comparing damping of the flexural vibrations of the first vibrating conduit (14) providing a flow passage to that of the second vibrating conduit (15) having zero net flow as it is blocked by a plug (18).
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
- Granted November 9, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 9, 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.