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Expired Canadian patentCanada

Thermostatic mixing valve for two fluids

CA 1079159 A · Owner: Ab Vargarda Armaturfabrik · Inventors: Riis, Voldemar

CIPO record

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

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Abstract From the Canadian patent

Abstract of the disclosure, An extremely compact simple and reliable thermostatically controll valve for mixing two fluids of different temperatures comprises means for manual adjustment of volume and temperature of the mixed fluids leaving the valve, wherein said adjustment means are disposed for setting a temperature sensible member adapted to control by means of its thermal expansion the position of a control member which in turn controls the volumes of the different fluids in order to maintain the mixed fluid at the temperature set the supply of, one of said fluids being arranged through a pipe extending through said control member and opening in a first chamber communicating with a …

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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

  • Granted June 10, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 10, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJune 10, 1980
Term endedJune 10, 1997
Patent numberCA 1079159 A
Classification (IPC)F16K11/00

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedJune 10, 1980Term endedJune 10, 1997

Sources & verification

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