| 发明名称 | Window shade lifting apparatus | ||
| 摘要 | A window shade lifting apparatus that includes a tube disposed vertically on the window shade; a lifting cord disposed in the compression tube; a ladder structure including a vertical leg and a plurality of rungs, the ladder structure being connected to the tube; and connection rings, each connection ring connecting the ladder structure to the window shade. | ||
| 申请公布号 | US8813807(B1) | 申请公布日期 | 2014.08.26 |
| 申请号 | US201414224805 | 申请日期 | 2014.03.25 |
| 申请人 | Lewis Hyman, Inc. | 发明人 | LeBlanc Robert |
| 分类号 | E06B9/262;E06B9/264 | 主分类号 | E06B9/262 |
| 代理机构 | Jones Day | 代理人 | Jones Day |
| 主权项 | 1. A window shade lifting apparatus comprising: at least one tube disposed substantially vertically on a window shade; a lifting cord disposed in the tube; a ladder structure including a vertical leg and a plurality of rungs, the plurality of rungs being connected at a first end to the tube; and at least two connection rings, each connection ring connecting the ladder structure to the window shade. | ||
| 地址 | Carson CA US | ||