The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 2015
Filed:
Jul. 04, 2011
Philippe Hoffmann, Rousset les Vignes, FR;
Philippe Hoffmann, Rousset les Vignes, FR;
Acergy France SA, Suresnes, FR;
Abstract
A method of coating a field joint of a pipeline to accelerate the cycle time comprises positioning a mould tool around the field joint to define a mould cavity and injecting plastics material into the mould cavity through a plurality of gates in the mould tool, spaced along the mould cavity. The material is injected through different gates at different times as the mould cavity is filled, specifically through at least one first gate to advance a melt front within the mould cavity, and subsequently through at least one second gate spaced from the first gate, preferably when the melt front passes the second gate. First and second mould tools may be positioned successively around the field joint to create inner and outer coatings on the field joint. An insert may be positioned in the mould cavity to be embedded in the injected plastics material.