Cylindrical structure made up of rectangular elements
US8550276B2 · kind B2 · utility
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13References
19Claims
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Key dates
| Filing date | Jan 23, 2008 |
| Grant date | Oct 8, 2013 |
| Priority date | — |
| Expiry date | Sep 22, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C2270/0136
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A cylindrical structure includes a vertical wall (3) and a bottom wall (2), the bottom wall having a plurality of sectors (4) which are rotated images of each other, each sector including a plurality of adjacent rectangular elements (8), characterized by the fact that the bottom wall has the shape of a regular polygon whereof each side (6) corresponds to one of the sectors, the edges of the rectangular elements of one sector being respectively perpendicular and parallel to the side of the polygon corresponding to the sector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.