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Expired Canadian patentCanada

Electrically controlled fluid mixing fixture, especially for mixing hot and cold water

CA 1304337 C · Owner: Kwc Ag · Inventors: Blattler, Ernst

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

INVENTOR: ERNST BL?TTLER, INVENTION: ELECTRICALLY CONTROLLED FLUID MIXING FIXTURE ESPECIALLY FOR MIXING HOT AND COLD WATER ABSTRACT OF THE DISCLOSURE, In the fluid mixing fixture a displacement body, and a tubular shell which coaxially encloses the, displacement body are arranged at an inflow element. A, temperature measuring element such as a nickel wire which is, covered by a plastic jacket is wound around the tubular, shell at the region of an annular gap formed between the displacement body and the tubular shell. Hot water and cold water flow through inflow openings of the inflow element and into a recess or chamber thereof, at that location the hot water and cold water are admixed and …

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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 30, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 30, 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.
FiledSeptember 26, 1988
GrantedJune 30, 1992
Term endedJune 30, 2009
Patent numberCA 1304337 C
Classification (IPC)G05D11/13 +1 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedSep 26, 1988Patent grantedJune 30, 1992Term endedJune 30, 2009

Sources & verification

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