Openable and closeable roof construction
US5257485A · kind A · utility
25Cited by
5References
6Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 18, 1991 |
| Grant date | Nov 2, 1993 |
| Priority date | — |
| Expiry date | Dec 18, 2011 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B7/166
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention relates to an openable roof having two pairs of half dome openable roofs provided on a ring shaped set roof having a flat upper surface. In the center of the set roof, an aperture is provided; this aperture being opened or closed by these two pairs of openable roofs. Furthermore, either respective pair of these two pairs of openable roofs may be selected and utilized to open and close the aperture as necessary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.