Rollup door with rollable door leaf
US6883577B2 · kind B2 · utility
9Cited by
20References
36Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 24, 2003 |
| Grant date | Apr 26, 2005 |
| Priority date | — |
| Expiry date | Feb 24, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B9/17
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A rollup door comprising a door leaf of increasing width from top to bottom and having a narrower part on the top and a wider part on the bottom, and flexibility in the rolling direction; channels for guiding the door; and two modules for rolling and unrolling the door leaf so that a number of leaf layers do not come in contact. The modules are situated on each side of the door, have the same center axes and are successive radially enlarged so that on opening and closing of the door, the narrower and wider parts of the leaf engage the smaller and larger parts respectively of the modules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.