Vertical blind tilt control
US4386644A · kind A · utility
31Cited by
8References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 16, 1981 |
| Grant date | Jun 7, 1983 |
| Priority date | — |
| Expiry date | Apr 16, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S160/90
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A vertical blind having a blind head with a tilt rod, a cap mounted to one end of the head and including a bushing, a sleeve connected to the tilt rod and rotatably supported in the bushing, and a worm gear located within the cap and connected to the sleeve, and a worm on a shaft accessible from outside the cap and operatively connected to the worm gear for rotating the same by means of a wand. Alternatively, a sprocket wheel is located within the cap and connected to the sleeve, and a bead chain accessible from the outside passes over the sprocket wheel for rotating the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.