Tilt control for window blinds, and method of manufacture
US5031681A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 15, 1989 |
| Grant date | Jul 16, 1991 |
| Priority date | — |
| Expiry date | Dec 15, 2009 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B9/307
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tilt control assembly for window blinds is provided. The window blind includes a tilt control rod rotatably mounted in a channel for placement in proximity to an elevated location adjacent a window. The stop bracket which includes a stop structure is nonrotatably disposed in the channel in proximity to the tilt control rod. A pair of tilt control discs of substantially identical external configuration are nonrotatably mounted on the tilt control rod. The external configuration of each tilt control disc defines a nontangentially aligned stop surface for engaging the stop bracket. Each tilt control disc includes a noncircular mounting aperture generally conforming to the cross-sectional shape of the tilt control rod. The angular alignment of the noncircular portion of the mounting aperture to the stop surface of each tilt control disc is selected to effectively define the angular alignment of the stop surface to the tilt control rod. A pair of the discs are disposed with the respective stop surfaces facing one another but angularly separated to define the ranges of rotational movement of the tilt control rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.