Double walled underground storage tank
US5220823A · kind A · utility
15Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1992 |
| Grant date | Jun 22, 1993 |
| Priority date | — |
| Expiry date | Jun 30, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D88/76
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An underground storage tank is provided with a load-transmitting material in the annular space between inner and outer walls. The load-transmitting material passes aqueous liquid and the stored product and so may be used with either wet or dry alarm systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.