Patent ID: 6402201
Filing Date: 2002-06-11
Classification: B29C,F16L

Abstract:
A cover for attachment at positions protecting exposed pipeline joint sections on weight coated offshore underwater pipelines comprising:a pliable cover material for attachment at positions overlapping adjacent end portions of the weight coat, completely enclosing the exposed pipe joint section, and sealed in place forming an annular space around the pipe; said cover material comprising a sheet of material wrapped in a cylindrical shape and having overlapping side edges sealed together to form said annular space; said annular space between the exposed pipeline and the cover material filled with a joint filling material of a high density open celled polyurethane foam, formed by reacting polyurethane chemicals inside the cover material; and said cover material including an opening formed in the sheet for injecting the joint filling material into the annular space and allow entry of moisture into the polyurethane foam.