Gapless roller blind device for the access opening of a refrigeration unit
US9243446B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Feb 10, 2012 |
| Grant date | Jan 26, 2016 |
| Priority date | — |
| Expiry date | Jun 25, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/2458
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a roller-screen arrangement having covering roller screens which are arranged axially one beside the other and can be jointly rolled up onto, and unrolled from, a winding roller, wherein the free ends of the covering roller screens are oriented in opposite directions. The covering roller screens can thus be jointly rolled up onto, and unrolled from, the winding roller, wherein furthermore, in the unrolled state, a distance A is formed between the covering roller screens. A cavity is created between the covering roller screens, and at least one intermediate roller screen is provided in this cavity in order to cover gaps between the covering roller stir screens arranged axially one beside the other. When the covering roller screens are opened and closed, the intermediate roller screens are taken up and let down and picked up again in accordance with the shortening and lengthening of the covering roller screens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.