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公开(公告)号：US07305739B2
公开(公告)日：2007-12-11
申请号：US10941716
申请日：2004-09-15
IPC分类号： D01G37/00
摘要： An apparatus for opening a crimped multifilament tow comprising: a source of crimped multifilament tow; at least one pair of opposed gripping rollers comprising a first roller which is a metal roller and a second roller which is a smooth-surfaced roller made of a material selected from the group consisting of: polyurethane or silicone rubber; where the multifilament tow passes between and in contact with both of the rollers and filaments of the tow are separated from one another and opened.
摘要翻译： 一种用于打开卷曲复丝丝束的设备，包括：卷曲复丝丝束源; 至少一对相对的夹持辊，包括作为金属辊的第一辊和由选自以下的材料制成的光滑表面辊的第二辊：聚氨酯或硅橡胶; 其中复丝丝束在两个辊之间通过并与两个辊接触并且丝束的长丝彼此分离并打开。
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公开(公告)号：US5719328A
公开(公告)日：1998-02-17
申请号：US672354
申请日：1996-06-25
CPC分类号： A24C5/3418
摘要： A device is provided for testing a pressure drop across a cigarette filter rod. The device includes an expansible sleeve for encapsulating a filter rod and a two stage vacuum pump connected thereto. A first controllable valve connects the outer surface of the sleeve to the vacuum pump to expand the sleeve so that a filter rod can be inserted. The first controllable valve also connects the end of the sleeve to the vacuum pump so that a measurable pressure drop is created across the filter rod. A second controllable valve is connected between an exhaust port of the vacuum pump and the end of the sleeve so that, after the testing has been completed, the filter rod will be ejected from the sleeve. The pressure testing device is thus self contained and does not require an external source of vacuum or compressed air.
摘要翻译： 提供了一种用于测试穿过香烟过滤棒的压降的装置。 该装置包括用于封装过滤杆的可膨胀套筒和与其连接的两级真空泵。 第一可控阀将套管的外表面连接到真空泵以使套筒膨胀，从而可以插入过滤杆。 第一可控阀还将套筒的端部连接到真空泵，使得跨过滤杆产生可测量的压降。 第二可控阀连接在真空泵的排气口和套管的端部之间，使得在测试完成之后，过滤杆将从套筒中排出。 因此，压力测试装置是独立的并且不需要外部真空源或压缩空气。
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