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2. 发明授权

US3645195A Ventilating louver unit 失效
标题翻译：通风单元
公开(公告)号：US3645195A
公开(公告)日：1972-02-29
申请号：US3645195D
申请日：1970-04-09
申请人： VENT PRODUCTS CO INC
发明人： KOVAL ROBERT J
IPC分类号： F24F13/08
CPC分类号： F24F13/08 , F24F13/082
摘要： A ventilating louver unit having a peripheral frame defining and surrounding an interior space opening onto the front and rear of the unit. The peripheral frame has sidewalls having correspondingly inwardly extending outer flanges at the front and rear margins thereof and vertical ribs extending inwardly between the flanges. Louver blades pass through corresponding vertically spaced slots in said inwardly extending ribs and are wedged between the front and rear sidewall flanges. Each louver blade has a forwardly projecting rain-shield-forming portion resiliently urged against the rear surfaces of the ribs above each of the associated slots.
摘要翻译：一个通风百叶窗单元，其具有外围框架，该外围框架限定并围绕在该单元的前部和后部开口的内部空间。外围框架具有在其前边缘和后边缘处具有相应向内延伸的外凸缘的侧壁和在凸缘之间向内延伸的垂直肋。百叶窗叶片穿过所述向内延伸的肋中的相应的垂直间隔的狭槽，并且楔入前后侧壁凸缘之间。每个百叶窗叶片具有向前突出的防雨罩形成部分，弹性地推靠在每个相关狭槽上方的肋的后表面。

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