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    • 24. 发明授权
    • Apparatus for making filter means
    • 制造过滤器的设备
    • US3826177A
    • 1974-07-30
    • US35001973
    • 1973-04-11
    • AMERICAN FILTRONA CORP
    • BERGER RBROOKS E
    • A24D3/02A24C5/50
    • A24D3/0283
    • An apparatus for making filter means of a type which is constructed to provide elongated, high surface area, cavities defined on opposite sides of a relatively thin wall formed of filtering material with only the ends of the filter means contacting an overwrapped outertube thereby presenting maximum available surface area of the material from which the products are formed to the smoke for filtration is disclosed. A tow of a suitable filtering material is passed through an air nozzle containing a mandrel centered therein, the two thereby achieving a uniformly random, but tubular, configuration and then through a steam curing station followed by an air curing station. The formed rod is then again steam cured and passes to a crimping device which imparts a particular configuration thereto. The crimped rod is then again air cured, wrapped, and cut. In another embodiment, an additional material may be added by means either of a printing applicator device or a pulsating nozzle device.
    • 一种用于制造过滤器装置的装置,其被构造成提供细长的高表面积,限定在由过滤材料形成的相对薄的壁的相对侧上的空腔,只有过滤装置的端部与外包裹的外套接触,从而呈现最大可用 公开了将产品从其形成的材料到用于过滤的烟的表面积。 将合适的过滤材料的丝束通过包含其中心的心轴的空气喷嘴,由此实现均匀随机但是管状的构造,然后通过蒸汽固化站,随后是空气固化站。 然后将形成的杆再次蒸汽固化并传递到赋予其特定构型的压接装置。 然后将卷曲的杆再次空气固化,包裹和切割。 在另一个实施例中,附加材料可以通过印刷施加器装置或脉动喷嘴装置中的任何一种来添加。
    • 26. 发明授权
    • Cigarette filter
    • 香烟过滤器
    • US3690326A
    • 1972-09-12
    • US3690326D
    • 1970-10-01
    • AMERICAN FILTRONA CORP
    • DAVENPORT FRANCIS ROBERT
    • A24D3/04A24D3/02
    • A24D3/0283
    • Tobacco smoke filter having an axially extending tubular outer member and an axially extending air permeable inner member therewithin. The inner member is formed of filaments or fibers bonded to each other at their points of contact. At a first position the outer surface of the inner member is in engagement with the inner surface of the outer member to at least substantially preclude axial passage of smoke therebetween while at a second position, longitudinally spaced from the first, the filaments or fibers are formed into a portion of substantially smaller cross section to leave a hollow space through which smoke drawn through the filter may pass.
    • 烟草烟雾过滤器,其具有轴向延伸的管状外部构件和其中的轴向延伸的透气内部构件。 内部构件由在其接触点处彼此结合的细丝或纤维形成。 在第一位置,内部构件的外表面与外部构件的内表面接合,以至少基本上排除烟雾的轴向通过,而在与第一位置纵向间隔开的第二位置形成长丝或纤维 进入基本较小横截面的一部分以留下中空空间,通过该中空空间通过过滤器抽出的烟可能通过。