Method and apparatus for inspecting pipeline
CA 1310106 C · Owner: Kabushiki Kaisha Iseki Kaihatsu Koki · Inventors: Nobunaga, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for inspecting whether or not a pipeline is eccentric comprises the steps of directing a beam from one end of the pipeline to the other end disposing, detecting means, which is provided with a light receiving body having a light receiving surface for receiving the beam and a television camera for taking a picture of the light receiving body, in the pipeline to be moved axially of the pipeline, processing an output signal of the television camera while maintaining the position of the light receiving body to have a predetermined relationship to the inner surface of the pipeline and inspecting whether or not the pipeline is eccentric on the basis of the result of processing.
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
- Granted November 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 10, 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.