Patent Yard Sign in
Expired Canadian patentCanada

Multiphase fluid mass transfer pump

CA 1293886 C · Owner: Massinon, Roland Maurice Joseph · Inventors: Massinon, Roland Maurice Joseph

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

A positive displacement piston pump that can pump multiphase fluids by separating the fluid into its different components inside the pump before pumping the fluids. A reciprocating piston mounted inside the pump barrel divides the barrel into two chambers, with each chamber having an opening. Accumulators located above the chambers and below the pump inlet. provide a space for the multiphase fluids entering the pump to separate before entering the chamber. As the multiphase enters each accumulator, gravity causes the liquid to sink and the to rise separating the different phases preferably allowing, liquid to enter the chambers before the gas. When the piston moves through the chambers …

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 January 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 7, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 5, 1989
GrantedJanuary 7, 1992
Term endedJanuary 7, 2009
Patent numberCA 1293886 C
Classification (IPC)F04B19/06 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedMay 5, 1989Patent grantedJan 7, 1992Term endedJan 7, 2009

Sources & verification

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