Covering for an architectural opening having nested rollers
US9567802B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2014 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Jun 9, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/405
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A covering for an architectural covering is provided. The covering may include a rotatable outer roller, a rotatable inner roller, a first shade secured to the outer roller, and a second shade secured to the inner roller. The outer roller may define an elongated slot extending along a length of the outer roller and opening to an interior of the outer roller. The inner roller may be received within the outer roller and may define a central longitudinal axis. The first shade may be retractable onto and extendable from the outer roller. The second shade may extend through the elongated slot and may be retractable onto and extendable from the inner roller. The elongated slot may be substantially horizontally aligned with the central longitudinal axis of the inner roller when the first shade is in a fully extended position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.