Patent Yard Sign in
Expired Canadian patentCanada

Compensation method and apparatus for a coriolis flow meter

CA 2586575 C · Owner: Schlosser, Martin Andrew · Inventors: Schlosser, Martin Andrew; Dille, Joseph C.; Whiteley, Jeffrey L.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

Method and apparatus (121) for providing temperature flow rate compensation for a Coriolis flow meter. The described compensation compensates both flow calibration factor and the nominal time delay commonly called "zero" in the , art. After a Coriolis flow meter is installed into a process whether for , calibration or for actual process use it need only be zeroed once over its , lifetime following its installation. This is a significant improvement over prior Coriolis flow meters that may need to be re-zeroed after minor changes in pressure, temperature, or installation.

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 17, 2004 and granted January 15, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 17, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 17, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 17, 2004
GrantedJanuary 15, 2013
Term endedSeptember 17, 2024
Patent numberCA 2586575 C
Classification (IPC)G01F1/84

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedSep 17, 2004Patent grantedJan 15, 2013Term endedSep 17, 2024

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.