A roto-dynamic high pressure machine
CA 2319607 C · Owner: Itt Manufacturing Enterprises, Inc. · Inventors: Arbeus, Ulf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved pump or compressor of the centrifugal type is provided, which has an impeller surrounded by a housing and having a disk, a first plurality of vanes provided near the disk, cover disks provided about the edges of the vanes, and a second plurality of vanes provided on the outwardly directed sides of the cover disks. Two pressure steps are created by the first plurality of vanes each side of the disk and the cover disks. Two additional pressure steps are created by the second plurality of vanes the cover disks, and pump housing walls that are located adjacently to the second plurality of vanes. Single or multiple flow conduits are arranged among the various inlets and outlets of …
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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 September 14, 2000 and granted November 4, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 14, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 14, 2022.
- 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.