Apparatus for feeding and dispensing of material
CA 2174230 A1 · Owner: Hair, Ernest A. · Inventors: Hair, Ernest A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus are described for the feeding and/or mixing and/or blending of materials more especially particulate materials, in the form of dry powders. The apparatus includes a speed reduction drive unit or gearbox including a single input shaft (2) which is in drive connection with at least two output shafts (5 and 6) preferably mounted concentrically or coaxially. The input shaft (2) is driven by an electric motor. The apparatus also includes an epicyclic speed reduction unit including a sun gear (7) and a plurality of planet gear (9) which is in turn in drive connection with the outer (6) of the two concentrically mounted output shafts. Auger means can be associated with the …
Read the whole patent
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 October 13, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 13, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 13, 2016.
- 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.