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公开(公告)号：US10030321B1
公开(公告)日：2018-07-24
申请号：US14850893
申请日：2015-09-10
申请人： Thomas M. Tao
发明人： Thomas M. Tao
IPC分类号： B29C47/70 , D01D4/02 , B29C47/10 , B29C47/58 , B29C47/00 , B29C47/12 , B29C47/86 , D01D5/08 , B29C47/14
摘要： An extrusion die includes a die body with two mating die halves, at least one of which is engraved with a die cavity system. The die cavity system includes a melt inlet, a first-stage melt reservoir in fluid communication with the melt inlet, a plurality of melt channels extending from the first-stage melt reservoir, and an extrusion trough in fluid communication with the melt channels and extending across the die half. Multiple stages of reservoirs and channels may be used. The melt channels in each stage have an equal length and cross-sectional area. Some of the melt channels may have a curved portion to maintain an equal length with other melt channels in the same stage. The die halves are secured by a plurality of fasteners. A method for extruding a fluid using the die is also provided. The die may be used to create films or fibers, including nano-fibers.
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2.发明授权Melt-blowing apparatus with improved puller device for producing tubular nonwovens 有权具有改进的拉管装置的熔喷设备用于生产管状无纺布公开(公告)号：US09260800B1
公开(公告)日：2016-02-16
申请号：US14614383
申请日：2015-02-04
申请人： Thomas M. Tao
发明人： Thomas M. Tao
摘要： This disclosure is related to the manufacture of melt blown coreless tubular nonwovens. Such manufacture includes a melt blowing apparatus to deposit fibers onto a rotating mandrel for forming a tubular nonwoven; a puller device to withdraw the tubular nonwoven from the mandrel; and a cutting device to cut the tubular nonwoven into cartridges of a desired length. The puller device has a pair of drive axles mounted on a gap-setting device, such as a scissor jack or its equivalent. Each drive axle includes one or more driven multi-directional puller wheels, which is formed of or surrounded by non-driven rollers. When the rollers engage the rotating tubular nonwoven, the tubular nonwoven is pulled axially and steadily from the mandrel without affecting the rotational motion of the tubular nonwoven. As a result, the tubular nonwovens have consistent dimensions and quality without damage to the inner or outer surfaces of the tube.
摘要翻译： 本公开涉及熔喷无芯管状无纺布的制造。 这种制造方法包括：将纤维沉积到旋转心轴上以形成管状无纺布的熔喷装置; 拉出装置，用于从筒芯中取出管状无纺布; 以及切割装置，以将所述管状非织造材料切割成期望长度的墨盒。 牵引装置具有安装在间隙设定装置上的一对驱动轴，例如剪刀千斤顶或其等效物。 每个驱动轴包括一个或多个从动多向牵引轮，其由非从动辊形成或包围。 当滚筒接合旋转的管状非织造材料时，管状非织造材料从芯轴轴向和稳定地拉伸，而不影响管状非织造材料的旋转运动。 结果，管状无纺布具有一致的尺寸和质量，而不损坏管的内表面或外表面。
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公开(公告)号：US20140366890A1
公开(公告)日：2014-12-18
申请号：US14295533
申请日：2014-06-04
发明人： Jeremiah P. Tao , Thomas M. Tao
CPC分类号： A61M16/009 , A61B46/00 , A61B46/40 , A61M16/06 , A61M2202/02 , A61M2202/0014
摘要： Surgical devices and methods for reducing the risk of surgical fires for patients receiving supplemental oxygen. Airflow with elevated concentrations of oxygen is drawn away from a surgical field when the tubing is fluidly connected to a suction source. Tubing may be strategically positioned at locations presenting risks of oxygen gas buildup, such as the nasofacial sulcus or bucco-facial sulcus. Apertures are present in the tubing wall to draw airflow away from the surgical field and into the tubing. Various embodiments are contemplated in which the tubing is used with a surgical mask or a surgical drape, and a method of use is provided.
摘要翻译： 手术装置和方法，用于降低接受补充氧气的患者的手术火灾的风险。 当管道流体连接到抽吸源时，具有升高浓度氧气的气流被从外科视野中抽出。 管道可能战略性地定位在存在氧气积聚风险的地方，如鼻沟沟或颊面沟。 孔口存在于管壁中以将气流从外科手术区域抽出并进入管道。 可以想到各种实施例，其中管与外科口罩或手术罩一起使用，并提供使用方法。
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公开(公告)号：US10744286B2
公开(公告)日：2020-08-18
申请号：US14295533
申请日：2014-06-04
申请人： Jeremiah P. Tao , Thomas M. Tao
发明人： Jeremiah P. Tao , Thomas M. Tao
摘要： Surgical devices and methods described herein reduce the risk of surgical fires for patients receiving supplemental oxygen. Airflow with elevated concentrations of oxygen is drawn away from a surgical field when the tubing is fluidly connected to a suction source. Tubing may be strategically positioned at locations presenting risk of oxygen gas buildup, such as the nasofacial sulcus or bucco-facial sulcus. Apertures are present in the turbine wall to draw airflow away from the surgical field and into the tubing. Various embodiments are contemplated in which the tubing is used with a surgical mask or a surgical drape, and a method of use is provided.
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公开(公告)号：US4332756A
公开(公告)日：1982-06-01
申请号：US187074
申请日：1980-09-15
申请人： William C. Bean , Thomas M. Tao
发明人： William C. Bean , Thomas M. Tao
CPC分类号： B27N3/14
摘要： Method for the manufacture of a fibrous web comprises provision of a conduit having a plurality of outlets for discharging classified fibers onto a linearly movable planar section of an endless screen. The fibers pass through openings in the screen and land on an underlying planar section of a forming wire, in formation of the fibrous web, with the aid of an underlying vacuum box. Uniformity of fiber distribution is provided by parallel banks of brushes that engage the planar section of the endless screen and are rapidly oscillated in short, non-synchronous strokes transversely of the direction of screen movement.
摘要翻译： 用于制造纤维网的方法包括提供具有多个出口的导管，用于将分类的纤维排放到环形屏幕的线性可移动平面部分上。 纤维通过筛网中的开口并借助于下面的真空箱在成形网的下面的平面部分上落下，形成纤维网。 纤维分布的均匀性由平行的刷子组提供，其与环形屏幕的平面部分接合，并且在横向于屏幕移动方向的短的非同步冲程中快速振荡。
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公开(公告)号：US4268235A
公开(公告)日：1981-05-19
申请号：US105897
申请日：1979-12-21
申请人： William C. Bean , Thomas M. Tao
发明人： William C. Bean , Thomas M. Tao
CPC分类号： B27N3/14
摘要： Apparatus for the manufacture of a fibrous web comprises provision of a conduit having a plurality of outlets for discharging classified fibers onto a linearly movable planar section of an endless screen. The fibers pass through openings in the screen and land on an underlying planar section of a forming wire, in formation of the fibrous web, with the aid of an underlying vacuum box. Uniformity of fiber distribution is provided by parallel banks of brushes that engage the planar section of the endless screen and are rapidly oscillated in short, non-synchronous strokes transversely of the direction of screen movement.
摘要翻译： 用于制造纤维网的设备包括提供具有多个出口的管道，用于将分类的纤维排放到环形丝网的可线性移动的平面部分上。 纤维通过筛网中的开口并借助于下面的真空箱在成形网的下面的平面部分上落下，形成纤维网。 纤维分布的均匀性由平行的刷子组提供，其与环形屏幕的平面部分接合，并且在横向于屏幕移动方向的短的非同步冲程中快速振荡。
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公开(公告)号：US09382644B1
公开(公告)日：2016-07-05
申请号：US14850877
申请日：2015-09-10
申请人： Thomas M. Tao
发明人： Thomas M. Tao
CPC分类号： D01D4/025 , B29C47/0014 , B29C47/0066 , B29C47/30 , D01D4/027 , D01D4/06 , D01D4/08 , D01D5/0985 , D01D5/32
摘要： A melt-blowing die tip includes a first die tip half and a second die tip half with complementary mating surfaces. A flow system is engraved onto at least one of the mating surfaces. The flow system includes linear melt troughs, which are fluidly connected by channels. Spinning orifices downstream of the last melt trough, which may have diameters over an exceptionally broad range, produce fibers as small as nano-scale. Fasteners secure the two die tip halves, and at least one of the channels includes a curved portion to direct flow around a fastener. The resulting die tip has increased pressure tolerance, greater productivity, reduced costs, and supports the economical mass production of super fine fibers. Optionally, an engraved die plate may be inserted between the die tip halves. When both sides of the die plate are engraved with a flow system, the die may produce bi-component fibers.
摘要翻译： 熔喷模头包括具有互补配合表面的第一模具顶端半部和第二模具顶端半部。 流动系统被雕刻在至少一个配合表面上。 流动系统包括通过通道流体连接的线性熔体槽。 最后熔融槽下游的旋转孔可能具有非常宽的范围内的直径，产生的纤维尺寸小至纳米级。 紧固件固定两个模具末端半部，并且至少一个通道包括弯曲部分以引导围绕紧固件的流动。 所得到的模头具有增加的压力公差，更高的生产率，降低的成本，并且支持超细纤维的经济批量生产。 可选地，雕刻的模板可以插入在模具末端半部之间。 当模板的两侧刻有流动系统时，模具可以产生双组分纤维。
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公开(公告)号：US09260799B1
公开(公告)日：2016-02-16
申请号：US14167631
申请日：2014-01-29
申请人： Thomas M. Tao
发明人： Thomas M. Tao
摘要： An improved melt-blowing apparatus includes a primary air system with a plurality of air tubes and a die tip assembly having a die tip and a pair of oppositely disposed air plates. A flow-splitting device efficiently divides a stream of pressurized and heated primary air into multiple tubular flows, which are fed into air intake passages in the die tip assembly. The flow-splitting device and the air tubes are located radially outward and independent of the die body and the die tip assembly. The tubular air flows are transformed into two uniform air knives by a distribution chamber within the die tip assembly. The present primary air supply system simplifies the equipment, saves energy, improves product quality, and reduces operational and maintenance efforts.
摘要翻译： 改进的熔喷设备包括具有多个空气管的一次空气系统和具有模头和一对相对设置的空气板的模头组件。 分流装置有效地将加压和加热的一次空气流分成多个管状流，其被馈送到模头组件中的进气通道中。 分流装置和空气管径向向外并且与模体和模头组件无关。 管状空气流通过模头组件内的分配室转变成两个均匀的气刀。 目前的主要供气系统简化了设备，节省了能源，提高了产品质量，减少了运行和维护工作。
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公开(公告)号：US4476078A
公开(公告)日：1984-10-09
申请号：US374700
申请日：1982-05-04
申请人： Thomas M. Tao
发明人： Thomas M. Tao
摘要： A process for manufacturing embossed, nonwoven fibrous products comprising the steps of subjecting a binder-treated fibrous dry laid web to a low cure treatment to obtain a moldable web with good physical integrity; embossing the low cure treated web; and fully curing the web.
摘要翻译： 一种用于制造压花非织造纤维制品的方法，包括以下步骤：对经过粘合剂处理的纤维干法成网幅材进行低固化处理以获得具有良好物理完整性的可模制纤维网; 压制低固化处理幅材; 并完全固化网。
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公开(公告)号：US4437917A
公开(公告)日：1984-03-20
申请号：US475617
申请日：1983-03-15
申请人： Thomas M. Tao , William C. Bean
发明人： Thomas M. Tao , William C. Bean
摘要： A method of increasing the caliper and bulk of air laid dry fibrous webs, particularly such webs intended for use as napkin, tissue, and absorbent paper towel products by partially drying the loose formed fibrous webs to a degree of dryness of less than 4% prior to consolidation. In the preferred embodiment uniformity of the product web caliper in the machine direction is obtained by measuring the caliper downstream of the bond curing drier and before take-up on the parent roll, output signals therefrom being transmitted to the drier for adjustment of one or more of the drier parameters. Uniformity of caliper in the cross machine direction can be optimized by providing multisectional driers in the cross machine direction, a series of output signals from the caliper sensing means being transmitted to the respective drier sections for individual adjustment of the drier parameters.
摘要翻译： 通过将松散成形的纤维网部分干燥至小于4％的干燥程度，增加空气铺设的干燥纤维网的厚度和体积的方法，特别是用作卫生巾，纸巾和吸收纸巾产品的这种网 合并。 在优选实施例中，产品网卡尺在机器方向上的均匀性通过测量粘合固化干燥器下游的厚度并在母辊上卷取之前获得，其输出信号被传送到干燥器以调整一个或多个 的干燥参数。 可以通过在横向方向上提供多分段干燥器来优化横向机械方向上的均衡性，来自卡尺检测装置的一系列输出信号被传送到相应的干燥器部分，用于单独调节干燥器参数。
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