Static mixer for viscous fluids
CA 2182256 C · Owner: Signer, Arno · Inventors: Signer, Arno
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The static mixer (1) for viscous media comprises a tube (3) and at least one mixing element (2) arranged in the tube. The tube defines a main flow direction (4) of the fluid to be mixed. The mixing element is formed as a monolithic structure with bars (20) crossing one another and the bars each have an essentially rectangular cross section with a large and a small side (a, b). Crossing points of the bars are reinforced by local thickened portions (5; 6; 7; 8). As a result of these thickened portions a common boundary surface (25) between the bars which lies parallel to the main flow direction is at least about twice as large as the square area (25') formed by the small side (b).
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 July 29, 1996 and granted January 22, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 29, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 2018.
- 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.