Sensor assembly for detecting ice crystal formation on heat exchange surface and ice-making machine incorporating the same
CA 2647682 C · Owner: Sunwell Engineering Company Limited · Inventors: Goldstein, Vladimir
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sensor assembly (50) for detecting ice crystal formation on a heat exchange surface in an ice-making machine (12) comprises at least one microphone (100) monitoring the sound made by a rotating blade assembly within the ice-making machine during ice slurry formation. A filter (104) filters the output of the microphone to remove background noise. A comparator (106) receives the output of the filter and compares the filtered microphone output with a threshold to determine if the filtered microphone output signifies ice crystal formation on the heat exchange surface. The operation of the ice-making machine (12) can then be adjusted in a manner to allow the formed ice crystals to be removed …
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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 March 30, 2006 and granted June 18, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 30, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.