Pump, in particular a slurry pump
CA 2593673 C · Owner: Jung, Herbert · Inventors: Jung, Herbert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The aim of the invention is to provide a simple smoothly running pump, especially a slurry pump preferably for concrete, which comprises a driven rotor (4) rotating inside a housing (2). According to the invention the rotor , (4) is configured as a polygonal prismatic body wherein at least the , connecting lines of the corners of the base form an equilateral polygon. The rotor performs a rotational movement about its center axis on an orbit the , longitudinal edges of the prismatic body (4') touching the longitudinal inner wall surface (2') of the housing (2).
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 29, 2005 and granted October 29, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 29, 2025.
- 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.