Method for the automatic adjustment in a comminutor of the grinding gap determining the grain structure of the comminuted material and an apparatus therefor
CA 2014021 C · Owner: Phan Hung, Hiep · Inventors: Seiffert, Klaus-Peter; Phan Hung, Hiep
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method for the automatic adjustment in a comminutor of the grinding gap determining the grain structure of the comminuted material this, comminutor comprising a first rotating comminuting tool and at least one additional comminuting tool allocated thereto. In particular, it relates to a method for operating an impact mill in which, to avoid substantial changes to the grain structure of the comminuted material, the impactor is moved towards the rotor by means of a drive mechanism when the impact mill is empty until first contact with the impeller bars occurs and after the resulting noises are noted by a microphone the movement is, reversed until 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
- Filed April 6, 1990 and granted January 23, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 6, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 6, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.