Double-walled tank for storing fluids such as heating-oil, and the like
US6206228A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 12, 2000 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Apr 12, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D77/0466
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A double-walled tank for storing liquids, such as heating oil, diesel fuel and lubricating and hydraulic oils, with an inside container 1 made of plastic, and an outside container 2 made of steel sheet, the outside container being provided with a container cover 6. The container cover 6 contains openings for receiving sockets 7 of the inside container 1, and has a collar 8 with a U-shaped cross section. The collar is mounted on the top edge of the container jacket and solidly joined with container jacket 3. The interior space of the collar 8 contains a seal for sealing the collar gas-tight against the container jacket 3. Pressure rings for applying pressure to seals are threaded on sockets 7, and compress the seals between the cover and the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.