Bend detector pig
CA 1294779 C · Owner: Smith, Dennis R. · Inventors: Smith, Dennis R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A pipeline bend detector pig for measuring the changes in direction of a pipeline having a first pig body assembly with an imaginary longitudinal axis and spaced apart resilient cups for supporting the pig body assembly in a pipeline so that the axis thereof is at least approximately the axis of the pipeline and for impeding flow of fluid past the pig so that the pig is propelled by fluid flow through the pipeline, and a second pig body assembly also having an imaginary longitudinal axis and means for support thereof within a pipeline so that the axis thereof Is at least approximately the axis of the pipeline a, universal joint connecting the front end of the second pig body …
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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 January 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 28, 2009.
- 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.