Conditioning line for steel pipes
CA 1162161 A · Owner: Nippon Kokan Kabushiki Kaisha · Inventors: Morita, Minoru; Akita, Shinji; Numano, Masachika
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the disclosure A conditioning line for steel pipes in which steel pipes are transversely transferred to effect the end processing thread cutting, thread inspection, hydrostatic testing etc. on the steel pipes. With a view to increasing the efficiency of the conditioning operations, a reprocessing line is arranged to run parallel to a main line such that the steel pipes rejected on the main line are automatically transferred to the reprocessing line where the rejected steel pipes are reprocessed and automatically transferred back to the main line.
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 February 14, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 14, 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.