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Expired Canadian patentCanada

Transducer mounting assembly

CA 1201900 A · Owner: St. Regis Corporation · Inventors: Brenholdt, Irving R.

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 transducer mounting assembly is provided for use in conjunction with apparatus for measuring the percentage of solid particles in a suspension flowing through a pipe. A hinged collar is adapted to be secured around a section of pipe. A radiant energy source is mounted at a first position on the circumference of the collar for radiating diffused radiant energy into the pipe. A first radiant energy detector is mounted at a second position on the circumference of the collar for sensing diffused energy in the pipe which is forward-scattered when a suspension flows therethrough. A second radiant energy detector is mounted at a third position on the circumference of the collar adjacent 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 March 18, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 18, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 30, 1984
GrantedMarch 18, 1986
Term endedMarch 18, 2003
Patent numberCA 1201900 A
Classification (IPC)G01N21/17 +1 more

Timeline

Timeline From CIPO dates

1985198719891991199319951997199920012003Application filedJan 30, 1984Patent grantedMarch 18, 1986Term endedMarch 18, 2003

Sources & verification

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