Method of covering inside surface of steel connection part
US8256089B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 15, 2006 |
| Grant date | Sep 4, 2012 |
| Priority date | — |
| Expiry date | Dec 17, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0402
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of covering the inside surface of a steel connection part having an empty inside volume defined by the inside surface, with a liner constituted by a layer of substantially uniform thickness of a thermoplastic material. The connection part including at least two open tubular ends suitable for being connected respectively to at least two steel pipe elements, each including the same internal liner. A rotary molding method is implemented in which the connection part acts as a mold. A connection part obtained by the rotary lining method is provided, and methods of assembling a connection part, as obtained by rotary lining, with a likewise lined pipe element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.