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公开(公告)号：US4811575A
公开(公告)日：1989-03-14
申请号：US107608
申请日：1987-10-13
申请人： Frederick A. Currier , Carl C. Herb
发明人： Frederick A. Currier , Carl C. Herb
CPC分类号： F16J3/042 , F16J3/06 , F24F11/04 , F24F13/10 , Y10S454/906
摘要： A bellows assembly is secured to a retainer by extrusions having a mushroom or arrow shaped cross section. Air flowing through the terminal impinges upon an impervious film covering the central portion of the device and is diverted into two flow paths. Initially the flow paths extend between the film and the cutoff plates which coact to form a tight shut off. Downstream of the cutoff plates, the flow paths are between a porous foam covering the bellows and foam surrounding the cutoff plates to provide a sound reducing effect. If necessary or desirable, the back of the retainer may be covered with foam or other suitable sound insulating material.
摘要翻译： 波纹管组件通过具有蘑菇形或箭形横截面的挤压件固定到保持器上。 流过终端的空气撞击覆盖设备中心部分的不透水膜，并转入两条流路。 最初，流动路径在膜和截止板之间延伸，其共同形成紧密切断。 在切割板的下游，流动路径在覆盖波纹管的多孔泡沫和围绕切割板的泡沫之间提供减少声音的效果。 如果需要或期望，保持器的背面可以用泡沫或其它合适的隔音材料覆盖。
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公开(公告)号：US4851066A
公开(公告)日：1989-07-25
申请号：US562547
申请日：1983-12-19
申请人： Frederick A. Currier , Carl C. Herb
发明人： Frederick A. Currier , Carl C. Herb
摘要： A bellows assembly is provided in which a retainer member is formed as an aluminum extrusion with two uniformly spaced recesses formed therein. A bellows is provided with two uniformly spaced attachment members which coact with the spaced recesses to provide a uniforma bellows profile for its entire length. Accordion pleat members are provided to attach the ends of the bellows to the ends of the retainer member.
摘要翻译： 提供一种波纹管组件，其中保持器构件形成为铝挤压件，其中形成有两个均匀间隔的凹部。 波纹管设置有两个均匀间隔的附接构件，其与间隔开的凹部共同作用以在其整个长度上提供均匀的波纹管轮廓。 提供手风琴褶部件以将波纹管的端部附接到保持器构件的端部。
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