A pump
CA 2610567 C · Owner: Itt Manufacturing Enterprises Llc · Inventors: Andersson, Patrik
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a pump for pumping contaminated liquid including solid matter, comprising a pump housing provided with a rotatable impeller (3) having at least one vane (9) and an impeller seat (4) the impeller seat (4) , presenting at least one recess (13) in the top surface (11) thereof a , sheering/cutting action arising between an cutting edge (15) of said recess (13) and a lower edge (14) of the vane (9) as the impeller (3) rotates relative to the impeller seat (4) . Furthermore the pump also comprises means , for guiding the solid matter towards said recess (13) the guiding means , comprising at least one guide pin and at least one projection (20) an upper , 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
- Filed June 5, 2006 and granted November 5, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 5, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.