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Expired Canadian patentCanada

Moisture pre-separator for a steam turbine exhaust

CA 1249729 A · Owner: Westinghouse Electric Corporation · Inventors: Silvestri, George J. Jr.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A moisture pre-separator for the exhaust portion of a high pressure steam turbine is disclosed. The preseparator mounts in the nozzle and adjoining piping of the exhaust portion and provides a first channel for capturing moisture caused by secondary flow and a second channel for capturing moisture flowing on the exhaust hood wall. Drains are provided for both channels.

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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

  • Granted February 7, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 7, 2006.
  • 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 21, 1987
GrantedFebruary 7, 1989
Term endedFebruary 7, 2006
Patent numberCA 1249729 A
Classification (IPC)F22B37/26 +2 more

Timeline

Timeline From CIPO dates

1988199019921994199619982000200220042006Application filedJan 21, 1987Patent grantedFeb 7, 1989Term endedFeb 7, 2006

Sources & verification

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