Watertightness barrier for a wall of a tank
US8985042B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2011 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Mar 10, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C2270/0136
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method of creating a watertightness barrier for a wall of a watertightened thermally insulating tank, involves steps of: arranging a repeating structure including alternately a strip of sheet metal and an elongate welding flange connected to the support surface, so that the turned-up lateral edges of the strip of sheet metal are positioned against the adjacent welding flanges, welding the turned-up lateral edge to the welding flange using a straight welded seam along a first longitudinal portion, continuing the straight welded seam with an end portion which is deviated in the direction of an upper edge corner, and producing a watertight edge corner welded seam along a second longitudinal portion of the strip of sheet metal such that the edge corner welded seam watertightly meets the end portion of the welded seam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.