Covering of building opening
US9032588B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 25, 2014 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | Apr 25, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/146
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A covering of a building opening includes a rail, a first sash having a guiding slot, a second sash hinged with the first sash and having a center of rotation at an end thereof, a pulley assembly, and a restricting assembly. The pulley assembly is movably received in the rail and has a rod. The rod has a protrusion section extending out of the rail, and the protrusion section enters and leaves the guiding slot while the pulley assembly is moving. The restricting assembly has a moving member and a locking base. The moving member is provided on one of the first sash and the second sash, and the locking base is provided on the other. The moving member is moved by the rod and engages the locking base when the rod leaves the guiding slot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.