Gravimetric metering apparatus
CA 2089724 A1 · Owner: Ohlmann, Hans-Armin · Inventors: Ohlmann, Hans-Armin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Gravimetric metering apparatus for bulk materials is provided in, which a vertically-compliant horizontal platform (3) is supported above a load cell (1) in an operative relationship therewith. A thin, flexible means such as a rotating flexible disk (14) is moveable cyclically from a dispensing location (12) thence across , the upper surface of the platform and thence to a discharge, location (21). Data logging and processing equipment connected to the load cell tracks and adds periodic signals from the load cell whereby with appropriate calibration the total mass passing across the load cell may be measured, whereby metering may be effected. A flexible sealing disk (51) may be interposed …
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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 August 19, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 19, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 19, 2013.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.