Covering for an architectural opening having nested tubes
US10641040B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2017 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | Jan 6, 2038 |
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 tube, a rotatable inner tube, a shade attached to the outer tube, and an operating element secured to the inner tube. The outer tube may define an elongated slot extending along a length of the outer tube and opening to an interior of the outer tube. The inner tube may be received within the outer tube. The shade may be retractable to and extendable from the outer tube. The operating element may extend through the elongated slot and may be retractable onto and extendable from the inner tube. The inner tube may rotate relative the outer tube to open and close the shade once the support sheet is in a fully extended position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.