Skylight window covering and control means therefor
US4917167A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1989 |
| Grant date | Apr 17, 1990 |
| Priority date | — |
| Expiry date | Mar 23, 2009 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/2625
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A skylight window covering has a frame affixed to the room vertical or ceiling walls with a central opening lying opposite the skylight. A length of pleated fabric has one end secured to the frame and an opposite end held by a movable rail with ends sliding along the frame. A helically grooved rod has its ends journaled at one end to a 90.degree. gear box and is threaded within a nut on the end of the movable rail such that rod rotation adjustably positions the rail and pleated fabric. Resilient supports prevent the rod from drooping and are temporarily moved aside as the rail moves therepast and immediately spring back to supporting position. Adjustment driving of the rod can be accomplished manually or by a handheld electric motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.