Patent Yard Sign in
Expired Canadian patentCanada

Immersion aerator

CA 1186422 A · Owner: Blum, Albert · Inventors: Arnswald, Werner; Bonn, Peter

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

Abstract, Immersion aerator, An immersion aerator for aerating water particularly waste water, sewage etc. consisting of at least one mixing chamber, a nozzle upstream thereof which generates a water jet through the mixing chamber a pressurized air connection issuing into the mixing chamber and at least one ejector leading out of the mixing chamber. In order that the technical apparative outlay of an immersion aerator can be reduced and the immersion aerator can be made more variable from the structural standpoint a pressurized, water storage chamber which is provided upstream of the nozzle issuing into the mixing chamber forms a separate subassembly with the mixing chamber, whilst the …

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

  • Granted April 30, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 30, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 7, 1983
GrantedApril 30, 1985
Term endedApril 30, 2002
Patent numberCA 1186422 A
Classification (IPC)C02F3/22 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedJan 7, 1983Patent grantedApril 30, 1985Term endedApril 30, 2002

Sources & verification

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