发明名称 |
Window covering height adjustment apparatus and method using fixed position rotor |
摘要 |
A method of controlling the vertical height of a window shade having a top and bottom, which includes providing shade upper support structure at or proximate the shade top; providing at least one substantially vertically elongated shade support line extending downwardly from the upper support structure, and providing shade lower support structure at or proximate the shade bottom; elevating or lowering the shade lower support structure relative to one or more support lines; and securing the shade lower support structure to the line or lines at a selected height position relative to the line length above the lower support structure, whereby the height of the shade bottom can be quickly manually adjusted.
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申请公布号 |
US6681831(B1) |
申请公布日期 |
2004.01.27 |
申请号 |
US20020151057 |
申请日期 |
2002.05.17 |
申请人 |
ZIPSHADE INDUSTRIAL (B.V.I.) CORP. |
发明人 |
CHENG LI-MING;WU LAWRENCE S. |
分类号 |
E06B9/262;E06B9/322;E06B9/326;(IPC1-7):E06B3/48 |
主分类号 |
E06B9/262 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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