Patent Yard Sign in
Expired Canadian patentCanada

Vortex generator

CA 2664073 C · Owner: Watreco Ab · Inventors: Hallberg, Curt; Ovesen, Morten

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A vortex generator, designed to bring a medium into a controlled vortex motion with a hollow inlet section (1) to direct the medium into the vortex generator. The inlet section consists of a rotational symmetric cavity (101 ) with a curved geometry (108). Furthermore a vortex chamber (4a; 4b), inside which the vortex motion is to be established is attached to the inlet section. The inlet section (1) contains at least one spiral-shaped conic channel for di- recting the medium from the rotational symmetric cavity to the vortex chamber. The vortex chamber is either trumpet-shaped (4a) or egg-shaped (4b).

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 September 28, 2006 and granted November 5, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 28, 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.
FiledSeptember 28, 2006
GrantedNovember 5, 2013
Term endedSeptember 28, 2026
Patent numberCA 2664073 C
Classification (IPC)B04C3/00 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedSep 28, 2006Patent grantedNov 5, 2013Term endedSep 28, 2026

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.