Roof of a structure
US5901504A · kind A · utility
3Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1997 |
| Grant date | May 11, 1999 |
| Priority date | — |
| Expiry date | Mar 10, 2017 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04H2015/201
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A roof for a built structure is proposed, which is designed in the form of a hollow body structure. It possesses interconnected walls (18 and 19) of flexible and at least substantially air-impermeable material. These walls (18 and 19) constitute elongated chambers (22), which are arranged side by side in sequence and are alternatingly designed as vacuum chambers (24) and gage pressure chambers (23). It is in this manner that an extremely strong, free span roof is created.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.