Original document(12 pages) Authorized document(12 pages) 中文版
    A window opener is composed of base, top cover, a worm passing through the hole on top cover and fixed between base and top cover, a crank connected to top end of worm, and a push-pull rod with worm gear engaged with said worm and fixed between base and top cover in rotary mode. After the window opener is installed on window frame and its push-pull rod is connected to window sash, driving the crank can open or close the window sash.
Application Number
申请号		 03126865 Application Date
申请日		 2003.06.11
Title 名称 Window opening apparatus
Publication Number
公开号		 1514100 Publication Date
公开日		 2004.07.21
Approval Pub. Date 2006.05.10 Granted Pub. Date 2006.05.10
International Classification 分类号 E05F11/08
Applicant(s) Name
申请人		 Liang Guoxi
Address 地址 528000
Inventor(s) Name 发明人 Liang Guoxi
Attorney & Agent 代理人 yu xinhua

  
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