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Expired Canadian patentCanada

Water temperature sensing and control means for automatic washer

CA 1264080 C · Owner: Reniger, Bruce Lynn · Inventors: Reniger, Bruce Lynn; Deschaaf, Clifford Lee

CIPO record

Overview

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

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Abstract From the Canadian patent

A water temperature sensing and control apparatus for automatic washers having a thermistor mounted within a projection that extends into a water inlet stream in a water inlet housing. A thermally semiconductive potting material encases the thermistor to provide a delayed response of the sensor to changes in water inlet temperature. A control circuit connected to the thermistor includes a pair of comparators for controlling hot and cold water inlet valves in response to the sensed temperature to achieve one of a plurality of selectable wash bath temperatures.

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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 December 27, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 27, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 28, 1986
GrantedDecember 27, 1989
Term endedDecember 27, 2006
Patent numberCA 1264080 C
Classification (IPC)D06F34/24 +1 more

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedNov 28, 1986Patent grantedDec 27, 1989Term endedDec 27, 2006

Sources & verification

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