In-situ pipeline coating system
CA 1304930 C · Owner: Union Carbide Corporation · Inventors: Daily, Joseph V.
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 self-contained trailer mounted proportioning, mixing, injection and collection system enables pipelines to be conveniently coated in-situ using two-component coating compositions moved through the pipeline by a double pig system without solvent vapor exposure, liquid spills or drips, undesired air bubble formation in the coating composition or exposure of operating personnel to pressurized gas, solvent vapors or liquid coating material splash or hazardous flammable or explosive conditions. D-15,550
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 July 14, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 14, 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.