Method of pipeline joint coating and insulation
CA 1320618 C · Owner: Ellis, Douglas S. · Inventors: Belding, Ronald J.; Ellis, Douglas S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for pipeline joint coating and insulation in which the exposed field-joint of thermally insulated pipeline, following welding of the joint is insulated by, applying a clam-shell mould over the exposed welded joint suitably venting the mould, and injecting a fast-setting organic foamed insulation into the annular cavity formed between the exterior of the pipeline and the mould thereby, filling the cavity, such that the organic insulation is compatible with and bondable to the exposed ends of the shop-applied thermal insulation encasing the pipeline sections interrupted by the joint, removing the mould and wrapping the solidified insulation thus formed with suitable wrapping, thereby …
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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 July 27, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 27, 2010.
- 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.