A volumetric metering device for the metered delivery of granular and powdery materials, particularly for machines for distributing the said materials
CA 2490876 A1 · Owner: Pleyer, Peter · Inventors: Pleyer, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A volumetric metering device for the metered delivery of granular and powdery materials, particularly for machines for distributing the said materials comprises a housing (10) formed in one piece of plastics material a metering , member (20) which is supported rotatably in the housing can be handled , individually, and includes a plurality of metering wheels (26) mounted on a shaft (21) and clamped in a group between two flanges (27) selective drive-, transmission means (41) interposed between the wheels and the shaft scraper , means (50) for cleaning the wheels in motion and anchoring the idle wheels and a feeler device (16) which is held at a distance from the metering member with …
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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 July 5, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 5, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 5, 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.
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.