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1. 发明申请

WO1988000524A1 COOLING APPARATUS IN A FILTER MAKER 审中-公开
标题翻译：过滤器中的冷却装置
公开(公告)号：WO1988000524A1
公开(公告)日：1988-01-28
申请号：PCT/US1987001517
申请日：1987-06-24
申请人： AMERICAN FILTRONA CORPORATION
发明人： AMERICAN FILTRONA CORPORATION , BERGER, Richard, M.
IPC分类号： B31C13/00
CPC分类号： D02J13/00 , A24D3/0233
摘要： Apparatus for use in cooling heated filter rods particularly in the manufacture of cigarette filters is in the form a conduit (12) through which the heated filter rod material is passed axially while being subjected to a flow of coolant gas. The conduit is provided with axially spaced rings of gas admission ports (14) through which the coolant gas enters the conduit and adjacent rings of gas discharge ports (16) through which the gas leaves the conduit. The ports in adjacent rings are slightly off-set circumferentially to provide uniform gas distribution through the filter rod material and the respective rings of admisison ports are each provided with an admission ring manifold. The manifolds (20) are connected in axial groups to respective headers so that independent sources of coolant gas can be provided to the respectively groups whereby the cooling effect can be controlled lengthwise of the conduit.

2. 发明申请

WO1995016369A1 BICOMPONENT FIBERS AND TOBACCO FILTERS FORMED THEREFROM 审中-公开
标题翻译： BICOMPONENT FIBERS和烟草过滤器
公开(公告)号：WO1995016369A1
公开(公告)日：1995-06-22
申请号：PCT/US1994013547
申请日：1994-11-23
申请人： AMERICAN FILTRONA CORPORATION
发明人： AMERICAN FILTRONA CORPORATION , BERGER, Richard, M.
IPC分类号： A24D01/04
CPC分类号： A24D3/08 , A24D3/065 , Y10T428/298
摘要： Sheath-core bicomponent fibers(10) comprising a core (14) of a low-cost, high strength, thermoplastic material, preferably, polypropylene, completely covered with a sheath (12) formed preferably of plasticized cellulose acetate, ethylene-vinyl acetate copolymer, polyvinyl alcohol or ethylene-vinyl alcohol copolymer, are produced, preferably melt blown to an average diameter of 10 microns or less, and formed into tobacco smoke filters. The resultant filters retain the desirable taste properties and processing capabilities of conventional cellulose acetate filter elements, but are substantially less expensive. Because the core material is non-absorbent, less plasticizer or additive is required for comparable properties, and a web, roving (34) or filter made of such materials has a longer shelf-life. The very fine fibers can be formed of various cross-sections, providing higher surface area and requiring less air in the melt blowing and manufacturing processes. With sheaths of polyvinyl alcohol or ethylene-vinyl alcohol copolymer, the filter element readily disintegrates when subjected to environmental conditions leaving behind only a multiplicity of very fine, substanially unnoticeable, fibers as residue.
摘要翻译：包含低成本，高强度的热塑性材料的核心（14）的护套芯双组分纤维（10），优选聚丙烯，其完全被由塑化的醋酸纤维素形成的护套（12）覆盖，乙烯 - 乙酸乙烯酯共聚物，聚乙烯醇或乙烯 - 乙烯醇共聚物，优选熔喷至10微米或更小的平均直径，并形成烟草烟雾过滤器。所得到的过滤器保持常规醋酸纤维素过滤元件所需的味道特性和处理能力，但是实质上较便宜。因为核心材料是非吸收性的，所以需要较少的增塑剂或添加剂来实现相当的性能，并且由这种材料制成的网，粗纱（34）或过滤器具有更长的保质期。非常细的纤维可以由各种横截面形成，在熔喷和制造过程中提供更高的表面积和更少的空气。使用聚乙烯醇或乙烯 - 乙烯醇共聚物的护套时，当经受环境条件时，过滤元件容易崩解，留下许多非常细的，基本上不明显的纤维作为残留物。

3. 发明申请

WO1985000092A1 IMPROVED TOBACCO FILTER 审中-公开
标题翻译：改进的烟草过滤器
公开(公告)号：WO1985000092A1
公开(公告)日：1985-01-17
申请号：PCT/US1983001002
申请日：1983-06-28
申请人： AMERICAN FILTRONA CORPORATION
发明人： AMERICAN FILTRONA CORPORATION , BERGER, Richard, M.
IPC分类号： A24D03/04
CPC分类号： A24D3/04
摘要： Self-sustaining, dimensionally stable, axially elongated fibrous bodies (14) of suitable cross-sectional size and shape for use as cigarette filters are produced from a bondable continuous filamentary tow of substantially continuous thermoplastic fibers. The fibers within the filter body are oriented in an adjacent and overlapping relation to one another in generally successive layers extending generally transverse to the longitudinal axis of the filter. During fabrication the filter is passed through a cooling station (80 and 88) of reduced cross-section so that the radially peripheral edges of the fibers are bent backward and overlap to form a smooth peripheral surface to which tip-wrap material can readily adhere without the need for a plug wrap or for coating the filter.
摘要翻译：具有合适的横截面尺寸和形状的自维持尺寸稳定的轴向细长的纤维体（14）用作香烟过滤嘴，由基本上连续的热塑性纤维的可粘合的连续纤维丝束制成。过滤器主体内的纤维以大体上相对于过滤器的纵向轴线延伸的大致连续的层彼此相邻和重叠的关系定向。在制造期间，过滤器通过具有减小的横截面的冷却站（80和88），使得纤维的径向周向边缘向后弯曲并重叠以形成平滑的外围表面，末端包裹材料可以容易地粘附到其上，而没有需要塞子包装或涂覆过滤器。

4. 发明申请

WO1993008707A1 BALANCED FLOW TOBACCO SMOKE FILTER 审中-公开
标题翻译：平衡流量烟草烟雾过滤器
公开(公告)号：WO1993008707A1
公开(公告)日：1993-05-13
申请号：PCT/US1992008404
申请日：1992-10-08
申请人： AMERICAN FILTRONA CORPORATION
发明人： AMERICAN FILTRONA CORPORATION , BERGER, Richard, M.
IPC分类号： A24D01/04
CPC分类号： A24D3/04
摘要： A cigarette filter having a core of synthetic fibrous filter material (12) and an outer plug wrap (14) is provided with a group of longitudinal bores (16) and a group of peripheral channels (18) in the core to improve the filtration efficiency and to balance the distribution of smoke flow over the cross-sectional area of the filter.

5. 发明申请

WO1989005235A1 INK RESERVOIR HAVING CONTINUOUS RANDOM SLIVER WITH STRETCH YARN 审中-公开
标题翻译：具有连续式连续拉链的墨盒储存器
公开(公告)号：WO1989005235A1
公开(公告)日：1989-06-15
申请号：PCT/US1987003268
申请日：1987-12-10
申请人： AMERICAN FILTRONA CORPORATION
发明人： AMERICAN FILTRONA CORPORATION , BERGER, Richard, M.
IPC分类号： B43K05/00
CPC分类号： D02J1/08 , B43K7/02 , B43K8/08 , B43K15/02
摘要： An apparatus (10) for producing an ink reservoir material (29), the reservoir material (29) itself, and a method of making the ink reservoir material (29), include use of false twist stretch yarn. The yarn is used together with a steam die heater (14) to cause crimping of a yarn bundle, so as to tangle, forming a relatively strong, relatively stable fibrous body usable as an ink reservoir material (14) having good ink-holding properties and to prevent leakers. The ink reservoir material (29) can be used with a film overwrap or extruded coating layer. An ink pen uses the ink reservoir material (29).

6. 发明申请

WO1989009093A1 SINGLE FIELD IONIZING ELECTRICALLY STIMULATED FILTER 审中-公开
标题翻译：单电场电动刺激过滤器
公开(公告)号：WO1989009093A1
公开(公告)日：1989-10-05
申请号：PCT/US1989001043
申请日：1989-03-14
申请人： AMERICAN FILTRONA CORPORATION
发明人： AMERICAN FILTRONA CORPORATION , JAISINGHANI, Rajan, A. , BUGLI, Neville, J.
IPC分类号： B03C03/04
CPC分类号： B03C3/38 , B03C3/155
摘要： A single field ionizing electrically stimulated filter utilizing a non-conductive filter medium (F) is charged by an electric field created between an ionizer (W) spaced apart from the upstream face of the filter media (F) and an electrode (E) placed in close proximity with the downstream face of the filter media. The ionizer (W) and electrode (E) are respectively supplied with differing high voltage potentials. For optimum efficiency, the electrode (E) at least loosely contacts the downstream face of the filter media (F). Glass filter media (80) in sheet form is pleated and sealingly mounted in a non-conductive frame (82), with the pleats spaced apart by non-conductive spacer means (84) applied across the filter media (80) faces. The ionizer (20) includes a plurality of ionizer wires (68) extending across a non-conductive frame (60) and spaced back from the frame's downstream face so that a gap (G) is maintained between the ionizer wires (68) and the filter medium (80). The filter produces a single ionizing electric field which charges incoming particles and produces and maintains a charge differential between the upstream and downstream faces of the filter medium (F) for enhancing filtration efficiency.

7. 发明申请

WO1988000440A1 FIBER SEPARATOR 审中-公开
标题翻译：光纤分离器
公开(公告)号：WO1988000440A1
公开(公告)日：1988-01-28
申请号：PCT/US1987001513
申请日：1987-06-24
申请人： AMERICAN FILTRONA CORPORATION
发明人： AMERICAN FILTRONA CORPORATION , BERGER, Richard, M.
IPC分类号： A24D03/02
CPC分类号： A24D3/0233
摘要： Apparatus for use in the manufacture of rod like elements, for example cigarette filters formed of filamentary tow, for dissipating conveying gas from a conduit (10) through which the tow is conveyed pneumatically through a series of processing stations. To effectively dissipate the gas from the conduit (10), the invention provides axially spaced rings (12A-12N) of gas dissipating ports in the conduit. The ports in the upstream rings (12A-12G) are inclined rearwardly to provide gas dissipation in a direction which is counter-current the direction of travel of the tow through the conduit. The ports in adjacent rings are offset circumferentially so as to improve the distribution of ports around the circumference of the conduit in (10) in the section used for gas dissipation.

8. 发明申请

WO1987002274A1 ELECTRICALLY STIMULATED FILTER METHOD AND APPARATUS 审中-公开
标题翻译：电动刺激滤波方法和装置
公开(公告)号：WO1987002274A1
公开(公告)日：1987-04-23
申请号：PCT/US1986001910
申请日：1986-09-16
申请人： AMERICAN FILTRONA CORPORATION
发明人： AMERICAN FILTRONA CORPORATION , JAISINGHANI, Rajan, A. , HAMADE, Thomas, A. , HAWLEY, Clyde, W.
IPC分类号： B03C03/09
CPC分类号： B03C3/155 , B03C3/38
摘要： An electrically stimulated filter assembly (10) includes a filter unit (11) in which an air gap is maintained between the filter medium (25) and electrodes (27, 28) disposed on opposite sides of that medium thereby preventing degradation of filter efficiency by humid filtered fluid. The filter medium (26) is a sheet like member folded in multiple accordion pleats and disposed between two plate electrodes (27, 28), one of which is grounded to the chassis (25), the other of which is at high voltage. The air gaps (31, 32) are established by insulative plastic combs (29, 30) having bases (29) secured to the electrode plates (27, 28) and teeth (30) projecting from the bases (29) into troughs of the folded filter medium (26). The high voltage plate (28) is on the downstream side of the filter unit (11) and mounted recessed from the downstream opening by insulative tubes (35) secured to both the filter housing (25) and the high voltage plate (28). A precharger (12) is disposed in the assembly (10) upstream of the filter unit (11) and includes plural individual high voltage wires (41) suspended in mutually spaced parallel relation across the flow path. The precharger is housed in a grounded metal frame (40) which is insulated from the wires (41).
摘要翻译：电刺激的过滤器组件（10）包括过滤器单元（11），其中在过滤介质（25）和设置在该介质的相对侧的电极（27,28）之间保持气隙，由此防止过滤器效率的降低湿过滤液。过滤介质（26）是折叠成多个折叠褶皱的片状构件，并且设置在两个平板电极（27,28）之间，其中一个被接地到底架（25），另一个是高电压。空气间隙（31,32）由具有固定到电极板（27,28）上的基座（29）和从基座（29）伸出的齿（30））的绝缘塑料梳（29,30）构成，折叠过滤介质（26）。高压板（28）位于过滤器单元（11）的下游侧，并通过固定在过滤器壳体（25）和高压板（28）两者上的绝缘管（35）从下游开口凹入。预充电器（12）在过滤器单元（11）的上游设置在组件（10）中，并且包括跨过流动路径以相互间隔开的平行关系悬挂的多个单独的高压电线（41）。预充电器容纳在与电线（41）绝缘的接地金属框架（40）中。

9. 发明申请

WO1996039054A1 POLYETHYLENE TEREPHTHALATE SHEATH/THERMOPLASTIC POLYMER CORE BICOMPONENT FIBERS, METHOD OF MAKING SAME AND PRODUCTS FORMED THEREFROM 审中-公开
标题翻译：聚乙烯三癸酸酯/热塑性聚合物核心双酚A纤维，其制备方法和形成的产物
公开(公告)号：WO1996039054A1
公开(公告)日：1996-12-12
申请号：PCT/US1996009318
申请日：1996-06-04
申请人： AMERICAN FILTRONA CORPORATION , BERGER, Richard, M.
发明人： AMERICAN FILTRONA CORPORATION
IPC分类号： A24D03/04
CPC分类号： B43K1/003 , A24D3/065 , A24D3/08 , B43K8/03 , B43K15/02 , D01D5/253 , D01D5/34 , D01F8/06 , D01F8/14 , D04H1/54 , D04H3/018 , D04H3/03 , D04H3/07 , D04H3/16 , Y10S264/48 , Y10S428/903 , Y10T428/1372 , Y10T428/139 , Y10T428/1393 , Y10T428/2915 , Y10T428/2929 , Y10T428/298
摘要： Sheath-core bicomponent fibers (20) comprising a core (22) of a low-cost, high strength, thermoplastic material, preferably polypropylene or polybutylene terephthalate, completely covered with a sheath (24) formed of polyethylene terephthalate or a copolymer thereof are produced, preferably melt blown to an average diameter of 12 microns or less, and formed into a self-sustaining, three-dimensional, porous element having various applications, principally as an ink reservoir element for a marking or writing instrument, although the porous element may also find utility as a tobacco smoke filter. Other forms of the product have utility in diverse applications where its excellent capillary, absorption and filtering properties are advantageous. The resultant products retain or improve upon the desirable features and processing capabilities of conventional elements, but are substantially less expensive, requiring less high cost polyester for equivalent or better properties.
摘要翻译：制成包含由聚对苯二甲酸乙二醇酯形成的护套（24）或其共聚物完全覆盖的低成本，高强度的热塑性材料（优选聚丙烯或聚对苯二甲酸丁二醇酯）的核心（22）的护套双组分纤维（20）优选熔喷至12微米或更小的平均直径，并且形成为具有各种用途的自支撑三维多孔元件，主要作为用于标记或书写工具的储墨元件，尽管多孔元件可以也可以用作烟草烟雾过滤器。其他形式的产品在多种应用中具有实用性，其优异的毛细管，吸收和过滤性能是有利的。所得产品保留或改进常规元件的期望特征和处理能力，但是实质上较便宜，对于相同或更好的性能需要较少的高成本聚酯。

10. 发明申请

WO1988006412A1 ULTRA-HIGH FILTRATION FILTER 审中-公开
标题翻译：超高速过滤器
公开(公告)号：WO1988006412A1
公开(公告)日：1988-09-07
申请号：PCT/US1988000538
申请日：1988-02-17
申请人： AMERICAN FILTRONA CORPORATION
发明人： AMERICAN FILTRONA CORPORATION , BERGER, Richard, M.
IPC分类号： A24D03/06
CPC分类号： B29C47/28 , A24D3/0237 , A24D3/04 , A24D3/08 , B01D39/1623 , B01D2239/10 , B29C47/0016 , B29C47/02 , D04H1/56 , D04H1/76
摘要： An ultra-high efficiency cigarette filter (12) is formed from a web of entangled ultra-fine melt blown plastic fibers of extremely low bulk density. The use of ultra-fine melt blow plastic fibers of extremely low bulk density allows for filtration efficiencies in excess of 80 %. The disclosure also includes processes and apparatus (46) for manufacturing the high efficiency filters.

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