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Expired Canadian patentCanada

A control valve

CA 2610601 C · Owner: Joergensen, Ole · Inventors: Joergensen, Ole

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A control valve for use in a liquid-carrying system such as a heating or , cooling system, containing a differential pressure governor which keeps the , differential pressure between the inlet and the outlet constant. The control valve also includes an arrangement for setting and adjusting the maximum flow of liquid through the valve. This arrangement comprises a flow valve having two cooperating valve members (4 and 6) which are arranged in the flow path , and are constructed as two concentric rings each of which has a recess , extending about 180 degrees in the circumferential direction. The outer ring (4) is stationary relative to the valve housing while the inner ring (6) may , be …

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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 June 14, 2006 and granted September 25, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 14, 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.
FiledJune 14, 2006
GrantedSeptember 25, 2012
Term endedJune 14, 2026
Patent numberCA 2610601 C
Classification (IPC)F16K5/10 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJune 14, 2006Patent grantedSep 25, 2012Term endedJune 14, 2026

Sources & verification

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