Roller shade weighting assembly
US6845806B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2003 |
| Grant date | Jan 25, 2005 |
| Priority date | — |
| Expiry date | Jan 6, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B9/42
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A weighting assembly for a roller shade fabric includes an elongated hem bar having opposite open ends and defining an internal cavity communicating with the open ends. A spline secured to an end of the fabric is slidingly received in a pocket defined within the cavity through one of the ends. The pocket includes an opening communicating with the rest of the cavity for passage of the fabric to an exterior through an elongated slot in the hem bar. After the fabric is wrapped on an exterior surface of the hem bar, a portion of the fabric is fed into the cavity through the slot to form a loop for slidingly receiving an elongated rod through one of the ends. The rod has a diameter that is greater than a width of the slot to prevent removal of the rod through the slot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.