Method and means for detecting magnetic deposits in heat exchanger and the like
CA 1162987 A · Owner: Electric Power Research Institute · Inventors: Lord, William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure Deposits of magnetite on coils in a heat exchanger of a steam generator are detected by measuring the magnetic reluctance within the coils. A probe for measuring the reluctance includes a magnetic core, an excitation coil wound on the core, and a magnetic flux detector such as a Hall generator. Changes in flux density established by the excitation coil are detected by the Hall generator thus indicating the presence of magnetite deposits.
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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 28, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 28, 2001.
- 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.