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公开(公告)号：US5955012A
公开(公告)日：1999-09-21
申请号：US950942
申请日：1997-10-16
CPC分类号： B65H18/26 , B65H18/16 , D04H3/07 , B65H2701/177 , Y10T156/1087 , Y10T156/12
摘要： Substantially constant tension is maintained on a melt-blown nonwoven fibrous sheet by mounting the sheet take-up roller for longitudinal movements relative so as to accommodate the increasing diameter of the sheet material being wound convolutely on the take-up roller. Sheet tension during production is thereby maintained substantially constant by virtue of a continual increase in the longitudinal distance (in relation to the machine direction) between the fiber collection mandrel and the take-up roll. Preferably, tension control is achieved by a pneumatic pressure-regulating system which includes at least one rotatable press roller which is longitudinally fixed in position relative to the collection mandrel and is in contact with the sheet material being wound around the take-up roll. The take-up roller is pneumatically advanced toward the press roller by the pneumatic actuation of at least one air cylinder. Thus, as the diameter of the sheet material being wound around the take-up roll increases, the pneumatic ram of the air cylinder will cause the pneumatic pressure of the air cylinder to correspondingly increase. This increase in pneumatic pressure is sensed by a pneumatic pressure regulator which vents sufficiently to decrease the pneumatic pressure acting on the air cylinder to a predetermined set point pressure. In this manner, the pressure exerted on the sheet material between the positionally fixed press roller and the longitudinally movable take-up roller is maintained substantially constant during production of the nonwoven sheet material.
摘要翻译： 通过安装用于纵向移动的片材卷取辊以保持缠绕在卷取辊上的片材的直径增加，在熔喷非织造纤维片材上保持基本上恒定的张力。 由于纤维收集心轴和卷取辊之间的纵向距离（相对于机器方向）的持续增加，生产期间的片张力由此保持基本恒定。 优选地，张力控制通过气动压力调节系统来实现，所述气动压力调节系统包括至少一个可旋转的压辊，所述至少一个可旋转的压辊相对于收集心轴纵向地固定在适当的位置，并与缠绕在卷取辊上的片材接触。 卷取辊通过至少一个气缸的气动驱动而朝向压辊气动地前进。 因此，随着缠绕在卷取辊上的片材的直径增加，气缸的气动冲杆将导致气缸的气动压力相应地增加。 通过气动压力调节器感测气压的这种增加，气动压力调节器充分排气以将作用在气缸上的气压降低到预定的设定点压力。 以这种方式，在非织造片材的生产期间，施加在位置固定的压辊和纵向移动的卷取辊之间的片材的压力保持基本上恒定。
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公开(公告)号：US5829708A
公开(公告)日：1998-11-03
申请号：US725258
申请日：1996-10-02
CPC分类号： B65H18/26 , B65H18/16 , D04H3/07 , B65H2701/177 , Y10T156/1087 , Y10T156/12
摘要： Substantially constant tension is maintained on a melt-blown nonwoven fibrous sheet by mounting the sheet take-up roller for longitudinal movements relative so as to accommodate the increasing diameter of the sheet material being wound convolutely on the take-up roller. Sheet tension during production is thereby maintained substantially constant by virtue of a continual increase in the longitudinal distance (in relation to the machine direction) between the fiber collection mandrel and the take-up roll. Preferably, tension control is achieved by a pneumatic pressure-regulating system which includes at least one rotatable press roller which is longitudinally fixed in position relative to the collection mandrel and is in contact with the sheet material being wound around the take-up roll. The take-up roller is pneumatically advanced toward the press roller by the pneumatic actuation of at least one air cylinder. Thus, as the diameter of the sheet material being wound around the take-up roll increases, the pneumatic ram of the air cylinder will cause the pneumatic pressure of the air cylinder to correspondingly increase. This increase in pneumatic pressure is sensed by a pneumatic pressure regulator which vents sufficiently to decrease the pneumatic pressure acting on the air cylinder to a predetermined set point pressure. In this manner, the pressure exerted on the sheet material between the positionally fixed press roller and the longitudinally movable take-up roller is maintained substantially constant during production of the nonwoven sheet material.
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3.发明授权Method of making filtration media having integrally co-located support and filtration fibers 失效制备具有整体上共位的载体和过滤纤维的过滤介质的方法
公开(公告)号：US5783011A
公开(公告)日：1998-07-21
申请号：US646151
申请日：1996-05-07
申请人： Steven D. Barboza , Charles S. Hoffman, Jr. , Clinton V. Kopp , Robert J. Schmitt , Anthony C. Shucosky
发明人： Steven D. Barboza , Charles S. Hoffman, Jr. , Clinton V. Kopp , Robert J. Schmitt , Anthony C. Shucosky
CPC分类号： D04H3/03 , B01D29/111 , D04H3/016 , D04H3/16 , B01D2101/005 , B01D2201/52 , Y10S264/75
摘要： Filtration medium is formed of a mass of nonwoven melt blown support and filtration fibers which are integrally co-located with one another. The support fibers have, on average, relatively larger diameters as compared to the filtration fibers which are integrally co-located therewith. Preferably, the filtration medium is disposed within at least one annular zone of a filtration element, for example, a disposable cylindrical filter cartridge having an axially elongate central hollow passageway which is surrounded by the filtration media. A depth filter cartridge in accordance with the present invention may thus be formed having one or more additional filtration zones (which additional filtration zones may or may not respectively be provided with integrally co-located support fibers) in annular relationship to one another. As a result of the melt blown, nonwoven fiber structure in accordance with the present invention whereby at least one filtration zone is comprised of relatively larger diameter support fibers integrally co-located with relatively smaller diameter filtration fibers, a filter cartridge having a wide range of "engineered" physical properties (e.g., in terms of filtration, pressure drop tolerance and the like) can be provided.
摘要翻译： 过滤介质由大量非对称熔喷支撑和过滤纤维形成，它们彼此整体地位于一起。 与与其整体地定位的过滤纤维相比，支撑纤维平均具有相对较大的直径。 优选地，过滤介质设置在过滤元件的至少一个环形区域中，例如，一次性圆柱形过滤器滤芯，其具有由过滤介质包围的轴向细长的中心空心通道。 因此，根据本发明的深度过滤器滤芯可以形成为具有一个或多个另外的过滤区域（其另外的过滤区域可以分别地或可以不分别设置有一体的共同位置的支撑纤维），其彼此呈环形关系。 作为熔喷的结果，根据本发明的非织造纤维结构，由此至少一个过滤区域由相对较大直径的支撑纤维组成，其与相对较小直径的过滤纤维整体地位于一起，具有宽范围的 可以提供“工程化”的物理性质（例如，在过滤方面，耐压降等）。
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4.发明授权Apparatus for making melt-blown filtration media having integrally co-located support and filtration fibers 失效用于制造具有整体共位的支撑和过滤纤维的熔喷过滤介质的设备
公开(公告)号：US5733581A
公开(公告)日：1998-03-31
申请号：US677353
申请日：1996-07-02
申请人： Steven D. Barboza , Charles S. Hoffman, Jr. , Clinton V. Kopp , Robert J. Schmitt , Anthony C. Shucosky
发明人： Steven D. Barboza , Charles S. Hoffman, Jr. , Clinton V. Kopp , Robert J. Schmitt , Anthony C. Shucosky
CPC分类号： D04H3/03 , B01D29/111 , D04H3/016 , D04H3/16 , B01D2101/005 , B01D2201/52 , Y10S264/75
摘要： The apparatus is provided to make a melt blown fibrous medium and includes first and second melt blowing dies for respectively issuing first and second streams of melt blown fibers along first and second melt blown paths. The first and second streams are issued on a forming surface where the streams are collected to form a melt blown fibrous medium. A movable transfer surface is interposed between the first die and the forming surface in the first path so that the first stream of melt blown fibers impinges on the transfer surface in advance of the forming surface such that the first stream is transferred to and brought into contact with the second stream of melt blown fibers on the forming surface.
摘要翻译： 提供该设备以制造熔喷纤维介质，并且包括第一和第二熔喷模具，用于分别沿着第一和第二熔喷路径发出第一和第二熔喷纤维流。 第一和第二料流被发布在成形表面上，其中流被收集以形成熔喷纤维介质。 在第一路径中的可移动转移表面介于第一模具和成形表面之间，使得熔喷纤维的第一流在成形表面之前撞击在转印表面上，使得第一流转移并接触 第二股熔喷纤维流在成形表面上。
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5.发明授权Melt-blown filtration media having integrally co-located support and filtration fibers 失效熔喷过滤介质具有整体位置一致的支撑和过滤纤维
公开(公告)号：US5681469A
公开(公告)日：1997-10-28
申请号：US678415
申请日：1996-07-02
申请人： Steven D. Barboza , Charles S. Hoffman, Jr. , Clinton V. Kopp , Robert J. Schmitt , Anthony C. Shucosky
发明人： Steven D. Barboza , Charles S. Hoffman, Jr. , Clinton V. Kopp , Robert J. Schmitt , Anthony C. Shucosky
CPC分类号： D04H3/03 , B01D29/111 , D04H3/016 , D04H3/16 , B01D2101/005 , B01D2201/52 , Y10S264/75
摘要： Filtration medium is formed of a mass of nonwoven melt blown support and filtration fibers which are integrally co-located with one another. The support fibers have, on average, relatively larger diameters as compared to the filtration fibers which are integrally co-located therewith. Preferably, the filtration medium is disposed within at least one annular zone of a filtration element, for example, a disposable cylindrical filter cartridge having an axially elongate central hollow passageway which is surrounded by the filtration media. A depth filter cartridge in accordance with the present invention may thus be formed having one or more additional filtration zones (which additional filtration zones may or may not respectively be provided with integrally co-located support fibers) in annular relationship to one another. As a result of the melt blown, nonwoven fiber structure in accordance with the present invention whereby at least one filtration zone is comprised of relatively larger diameter support fibers integrally co-located with relatively smaller diameter filtration fibers, a filter cartridge having a wide range of "engineered" physical properties (e.g., in terms of filtration, pressure drop tolerance and the like) can be provided.
摘要翻译： 过滤介质由大量非对称熔喷支撑和过滤纤维形成，它们彼此整体地位于一起。 与与其整体地定位的过滤纤维相比，支撑纤维平均具有相对较大的直径。 优选地，过滤介质设置在过滤元件的至少一个环形区域中，例如，一次性圆柱形过滤器滤芯，其具有由过滤介质包围的轴向细长的中心空心通道。 因此，根据本发明的深度过滤器滤芯可以形成为具有一个或多个另外的过滤区域（其另外的过滤区域可以分别地或可以不分别设置有一体的共同位置的支撑纤维），其彼此呈环形关系。 作为熔喷的结果，根据本发明的非织造纤维结构，由此至少一个过滤区域由相对较大直径的支撑纤维组成，其与相对较小直径的过滤纤维整体地位于一起，具有宽范围的 可以提供“工程化”的物理性质（例如，在过滤方面，耐压降等）。
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公开(公告)号：US6096207A
公开(公告)日：2000-08-01
申请号：US154522
申请日：1998-09-16
CPC分类号： B01D29/21 , B01D2201/0415 , B01D2201/291 , B01D2201/34 , B01D2201/4092
摘要： A filter cartridge assembly includes a filter cartridge having a generally cylindrical filter medium which defines a cylindrically shaped core space, and a pair of end caps fixed to opposite ends of the filter medium. Most preferably, the filter cartridge is "coreless" in that it is not provided with an integral support core structure. At least one of the end caps (e.g., the proximal end cap) is annular and has an interior cylindrical surface defining an interior space in alignment with the core space. A truncated generally conically shaped seal skirt is operatively associated with the annular end caps. The filter cartridge is sleeved over reusable support core structure which includes a base having a truncated conically shaped seal skirt, and a tubular perforated rigid core element fixed at one end to the base. The annular end-cap and the base of the support core structure are removably mechanically coupled to one another, most preferably by being threadably interconnected. In such a manner, the seal skirt is sealingly engaged with the seal skirt of the base. The base of the support core structure most preferably is provided with a protruding seat boss which carries seal rings (e.g., conventional O-rings). The seat boss is thereby adapted to being removably, but sealingly, seated within an internal seat cup structure of a conventional filter housing.
摘要翻译： 滤芯组件包括具有限定圆柱形芯空间的大致圆柱形的过滤介质的滤筒和固定到过滤介质的相对端的一对端盖。 最优选地，过滤筒是“无芯的”，因为其不具有整体的支撑芯结构。 至少一个端盖（例如，近端盖）是环形的并且具有限定与芯部空间对准的内部空间的内部圆柱形表面。 截顶的大致圆锥形的密封裙部可操作地与环形端盖相关联。 过滤筒套在可重复使用的支撑芯结构上，该结构包括具有截头圆锥形密封裙部的基部和在一端固定到基部的管状穿孔刚性芯元件。 环形端盖和支撑芯结构的基部可拆卸地机械地彼此联接，最优选地通过螺纹连接。 以这种方式，密封裙部与基座的密封裙部密封地接合。 支撑芯结构的基部最优选地设置有承载密封环（例如，常规O形环）的突出的座凸台。 因此，座椅凸起适于可移除地但是密封地位于常规过滤器壳体的内部座杯结构内。
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