Steam condensing apparatus
CA 2199209 C · Owner: Debellis, Crispin Lawrence · Inventors: Wahle, Harold Walter; Strock, Thomas Wayne; Giammaruti, Robert Joseph
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An air-cooled steam condenser that also uses heat pipe technology so as to provide steam tubes that are freeze proof under any ambient conditions and offer a simple approach to the management of noncondensable gases. Steam flows through the main condenser with concurrent steam and condensate flow downward. The heat transfer surface area and fan air flow are designed such that all of the steam does not completely condense and steam vapor continuously exits each tube row. This continuous flow of steam vapor purges these rows of noncondensable gases. The excess steam flows into the lower header to a secondary condenser section that utilizes heat pipes. In the secondary condenser section, the …
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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 March 5, 1997 and granted May 16, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 5, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 5, 2019.
- 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.