Pipe for a vehicle fuel tank suitable for welding
US11623509B2 · kind B2 · utility
0Cited by
6References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2018 |
| Grant date | Apr 11, 2023 |
| Priority date | — |
| Expiry date | Mar 5, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L9/133
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This method for manufacturing a pipe (2) for a vehicle fuel tank involves—molding a wall, comprising an inner layer (6) made from ethylene vinyl alcohol (EVOH) and an outer layer (8) made from a polymer suitable for welding, in a mold comprising at least one female shoulder that creates at least one male shoulder on an outer surface of an end portion of the wall during molding, then—cutting off the end portion of the wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.