Mixer particularly for fibrous products
CA 1307253 C · Owner: Faccia, Tiziano · Inventors: Faccia, Tiziano
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The mixer is of the kind composed of a container which is internally provided with one or more vertical screws welded to a shaft which rotates about end pins fixed to the container. The improvements consist in a scraping element which is fixed to one of the pins and extends longitudinally flanking the shaft. Each scraping element has a blade which is rigidly associated therewith and scrapes the surface of the shaft and blade which is spaced from the surface.
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
- Granted September 8, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 8, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.