Housing for regenerative heat exchanger
CA 2219773 C · Owner: Abb Alstom Power Inc. · Inventors: Snider, Rex Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In an air preheater with a large lower cold end center section and a smaller upper hot end center section, the connecting plate duct assemblies on both the hot and cold end are made the same height rather than to have cold end connecting plate duct assemblies which are larger and equal in height to the cold end center section. This minimizes the design and manufacturing costs and provides cold end connecting plate duct assemblies which are smaller lighter , and easier to handle. This then requires that the housing panels around the outside of the rotor be longer to reach between these connecting plate duct assemblies. At the ends of the hot and cold center sections are main support …
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 March 25, 1996 and granted March 27, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 25, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 25, 2018.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.