Patent Yard Sign in
Expired Canadian patentCanada

Apparatus and method for measuring two or three phase fluid flow utilizing one or more momentum flow meters and a volumetric flow meter

CA 2103254 C · Owner: Agar Corporation Limited · Inventors: Agar, Joram; Farchi, David

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

An apparatus and method for measuring the flow rates of each component of two-phase now consisting of a gas and a liquid or three-phase flow consisting of water oil and gas, including a first volumetric flow meter stage and second and third, momentum flow meter stages coupled in a series flow path with the volumetric flow meter stage and in which a velocity ratio between the gas and the liquid in the series flow path is maintained to be one. A processor calculates flow rates of the components of flow by solving volumetric flow and momentum or energy equations defining flow through the first through third stages utilizing a volumetric flow output from the first stage and momentum flux …

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 March 11, 1993 and granted February 2, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 11, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 11, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 11, 1993
GrantedFebruary 2, 1999
Term endedMarch 11, 2013
Patent numberCA 2103254 C
Classification (IPC)G01F1/74 +1 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedMarch 11, 1993Patent grantedFeb 2, 1999Term endedMarch 11, 2013

Sources & verification

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