System and method for measuring electric current in a pipeline
CA 2555092 C · Owner: Pots, Bernardus Franciscus Maria · Inventors: Pots, Bernardus Franciscus Maria; Mateer, Mark Wilson; Fagbayi, Rasheed Kolawole
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for measuring a voltage differential in a current-carrying pipe (102)using a propulsion vehicle (108) for conveying the system inside the pipe (102), the system comprising a first contact (116) for maintaining electrical contact with the pipe (102) as the vehicle (108) moves through the pipe (102) a second contact (118) positioned in a spaced apart relationship from said first contact (116) for maintaining electrical contact with the pipe (102) as the vehicle (108) moves through the pipe (102) and a voltage reading device , (212) connected to said first contact (116) and said second contact (116) for measuring the voltage between said first contact (116) and said second …
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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 January 27, 2005 and granted November 3, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 27, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.