Pressure transmitter with acoustic pressure sensor
CA 2621313 C · Owner: Rosemount Inc. · Inventors: Hedtke, Robert C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A transmitter configured to measure a process variable of an industrial process, includes a pressure sensor (10) configured to couple to a pressure of a fluid. An acoustic detector (18) receives an acoustic signal from the fluid. Measurement circuitry (20) coupled to the pressure sensor (10) and the acoustic detector (18) provides an output (24) related to pressure of the fluid.
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 September 19, 2006 and granted November 25, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 19, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.