Secureable concrete storage facility
US8640409B2 · kind B2 · utility
1Cited by
10References
4Claims
0Family size
Inventor
Key dates
| Filing date | Apr 19, 2012 |
| Grant date | Feb 4, 2014 |
| Priority date | — |
| Expiry date | Apr 19, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A pre-stressed concrete storage apparatus includes a plurality of panels secured together to form a hollow interior space for storing items. An outer door panel is selectively movable for restricting access to the interior of the apparatus. A secondary metal door and cage assembly is located behind the primary outer door panel for further restricting access to the interior of the storage apparatus. A pulley system is provided for mechanically lifting and lowering the outer door panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.