Roll-up door and guide system therefor
US9637972B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2012 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Sep 9, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/885
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A roll-up type industrial door including a flexible sheet or woven fabric forming a curtain for closing a door way having an upper end, a lower end and two opposite side edges. The sheet has a main area and elongate side edge sections that are thicker than the main area. A shoulder is formed where each side edge section meets the main area. A curtain winding mechanism is connected to the upper end of the curtain and is used to raise the curtain. A pair of spaced apart guide channels are also provided and the side edge sections are movable therein. Each guide has one or two elastic members which act as locking blades. The locking blades of each guide form an elongate slot that receives a side edge section of the curtain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.