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Expired Canadian patentCanada

Apparatus for continuously measuring the element content in slurries

CA 1182590 A · Owner: Kernforschungszentrum Karlsruhe G.M.B.H. · Inventors: Wiese, Kurt; Lubecki, Andrzej; Winkler, Karl

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Abstract From the Canadian patent

An apparatus for continuously measuring the elemental contents of a slurry independent of the slurry density and slurry composition, by utilizing X-ray fluorescence analysis. The apparatus includes a measuring chamber with a slurry flow channel and a first measuring window disposed on one side of the channel and a second measuring window disposed on the other side of the channel. A first source of primary radiation and a target are disposed behind the second measuring window. A detector is disposed behind the first measuring window. An annular source of primary radiation is provided around an open passage formed by a collimator between the detector and the first measuring window. The …

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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 February 12, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 12, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 19, 1982
GrantedFebruary 12, 1985
Term endedFebruary 12, 2002
Patent numberCA 1182590 A
Classification (IPC)G01N23/22

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedMarch 19, 1982Patent grantedFeb 12, 1985Term endedFeb 12, 2002

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