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Canadian application, no grantCanada

Method for the acoustic control of bottle fill levels

CA 2469920 A1 · Owner: Systelia Technologies S.A. · Inventors: Gondolo, Jean; Tomasini, Bernard

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

The invention relates to a method of controlling the fill level (6) of containers (4). The inventive method involves the reflection of an acoustic signal which is emitted by an acoustic transmitter/receiver device (7) said device being disposed above a single-line flow of containers (4). The method is characterised in that it comprises the following: during an data acquisition step one or more standard containers (4A) with a known fill level (6) are brought under the acoustic transmitter/receiver device (7); after the emission of acoustic signals the reflection signal(s) corresponding to the opening and the level (6) of the contents in said standard container (4A) are detected; and during …

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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

  • Filed December 12, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 12, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 12, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 12, 2002
GrantedNo grant recorded
Term endedDecember 12, 2022
Patent numberCA 2469920 A1
Classification (IPC)G01F23/29 +1 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedDec 12, 2002Term endedDec 12, 2022

Sources & verification

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