Chain stopper
US7353857B2 · kind B2 · utility
27Cited by
5References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 9, 2005 |
| Grant date | Apr 8, 2008 |
| Priority date | — |
| Expiry date | Apr 18, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/3904
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A ball chain stopper for inhibiting movement of ball chains used in window blinds and the like for moving the blinds between operative positions is adapted to be attached to intermediate chain members which interconnect adjacent balls of the ball chain. The ball stoppers are characterized as having a maximum cross-sectional size that is equal to or less than the size of the maximum cross-section of the balls of the chain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.