Fuel tank and method for producing same
US6857534B1 · kind B1 · utility
24Cited by
2References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 3, 1997 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | May 21, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7172
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A plastic fuel tank is formed by welding together an upper plastic shell (1) having an upper closing wall (8) and a lower plastic shell (2) forming a bottom (7). The two plastic shells (1, 2) are produced by the injection molding method. In order to adhere to an exact distance between the upper closing wall (8) and the bottom (7), spacers (9) coming into abutment during the welding operation are provided in the fuel tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.