专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06551353B1 Synthetic fibers for medical use and method of making the same 有权
公开(公告)号：US06551353B1
公开(公告)日：2003-04-22
申请号：US09530183
申请日：2000-04-26
申请人： William R. Baker , William H. Hills , Arnold E. Wilkie
发明人： William R. Baker , William H. Hills , Arnold E. Wilkie
IPC分类号： A61F204
CPC分类号： A61K9/0092 , A61L15/44 , A61L17/005 , A61L2300/00 , D01D5/24 , D01D5/30 , D01D5/36 , D01F1/10 , D01F8/04 , D01F8/12 , Y10T442/2525
摘要： A synthetic fiber is formed with a plurality of longitudinally-extending cavities (16, 54 and 64) which hold a medicament that is intended to be absorbed into tissue brought into contact with the fiber. The fiber can be formed by dissolving a soluble polymer component 14 of an extruded plural-component fiber 10, leaving cavities 16 that extend inward from the outer surface of the fiber in the locations of the dissolved polymer. After the fiber has been exposed to a solvent, the cavities left by the dissolved component are filled with a medicament 18. Specifically, the cavities are filled with a medicament that is mixed with a viscous carrier which solidifies within the cavities. The fibers can be used to make sutures, textile prostheses for insertion into the body, and epidermal pads and bandages. Fibers having internal cavities 64, i.e., cavities not extending to the external surface of the fiber, can be formed by extruding a single-component fiber 60 from a spinneret orifice 72 having a number of T-shaped slots extending from a central hub. A medicament is introduced into the internal cavities by soaking the fiber in a liquid containing the medicament. The internal-cavity fiber is therefore formed of polymer having some capability for liquid transport, e.g., nylon.

2. 发明授权

US06471910B1 Nonwoven fabrics formed from ribbon-shaped fibers and method and apparatus for making the same 有权
标题翻译：由带状纤维形成的无纺织物及其制造方法和装置
公开(公告)号：US06471910B1
公开(公告)日：2002-10-29
申请号：US09533883
申请日：2000-03-22
申请人： Jeffrey S. Haggard , W. Scott Harris , William H. Hills , Fumin Lu , Arnold E. Wilkie
发明人： Jeffrey S. Haggard , W. Scott Harris , William H. Hills , Fumin Lu , Arnold E. Wilkie
IPC分类号： B32B508
CPC分类号： D04H3/11 , A41D31/0016 , B32B5/24 , D01D5/253 , D04H1/74 , D04H3/018 , D04H3/02 , D04H3/04 , D04H3/16
摘要： Nonwoven fabric is formed from a spunbond process by extruding generally ribbon-shaped fibers 126 through slot-shaped orifices 124 of a spinneret 122. The ribbon-shaped fibers are rapidly quenched after extrusion to achieve a substantially uniform molecular orientation throughout a transverse cross section of the fibers, yielding stronger fibers. The rapid quenching results largely from the relatively high aspect ratio (thinness) of the fibers and the relatively large surface area of the fibers, which permits the fibers to quickly cool throughout the transverse cross section. The ribbon-shaped fibers are drawn longitudinally by an aspirator 128 that exerts a generally downward force produced by an air stream that longitudinally stretches and transversely attenuates the ribbon-shaped fibers in such a manner that the transverse cross-sectional shape of the ribbon-shaped fibers enhances the interaction between the air stream and the ribbon-shaped fibers to maximize the downward force. The attenuated ribbon-shaped fibers are deposited onto a web forming surface 134, such as a moving wire screen belt to form a web. The web is then bonded to form the nonwoven fabric.
摘要翻译：无纺布由纺丝方法形成，通过将喷丝板122的槽形孔124大致地挤出丝带状纤维126而形成。带状纤维在挤出之后被快速淬火以在整个横截面的整个横截面中实现基本上均匀的分子取向纤维，产生更强的纤维。快速淬火主要取决于纤维的相对高的纵横比（薄度）和纤维的相对大的表面积，这允许纤维在整个横截面中快速冷却。丝带状纤维由抽吸器128纵向拉伸，抽吸器128施加由空气流产生的大致向下的力，该空气流纵向延伸并横向衰减带状纤维，使得带状纤维的横截面形状纤维增强了空气流和带状纤维之间的相互作用，以使向下的力最大化。减弱的带状纤维被沉积到幅材形成表面134上，例如移动的丝网带以形成网。然后将纸幅粘合以形成无纺织物。

3. 发明授权

US06338814B1 Spunbond web formation 有权
标题翻译：纺粘网形成
公开(公告)号：US06338814B1
公开(公告)日：2002-01-15
申请号：US09496470
申请日：2000-02-02
申请人： William H. Hills
发明人： William H. Hills
IPC分类号： D01D5098
CPC分类号： D04H3/16 , D01D5/098
摘要： A spunbond web formation apparatus includes a spinneret (1) of a spin pack (2) that extrudes an array of fibers (5) that are drawn into an aspirator (6). The attenuated fibers (8) discharged from aspirator (6) are deflected sideways by a Coanda device (7) that entrains the exiting air stream along with the fibers. The fibers are deposited on a vertically moving belt (9) and subsequently bonded by calender rolls (20, 21) to form a non-woven spunbond web. The spinning distance L is adjusted by vertically moving the aspirator (6), while the laydown distance M is adjusted by horizontally moving the belt (9) or aspirator (6) or by adjusting the size of the Coanda device (7). Deflection of the fibers exiting the aspirator permits the spinning distance L to be adjusted independently of the laydown distance M, without having to move the spin beam or adjust the height of the web-forming belt.
摘要翻译：纺粘纤维网形成装置包括纺丝组件（2）的喷丝头（1），所述喷丝头（2）挤出吸入吸气器（6）的纤维阵列（5）。从吸气器（6）排出的减毒纤维（8）由Coanda装置（7）侧向偏转，该装置（7）与排出的空气流一起夹带纤维。纤维沉积在垂直移动的带（9）上，随后通过压延辊（20,21）粘合以形成非纺织纺粘纤维网。通过垂直移动吸气器（6）来调节旋转距离L，同时通过水平移动皮带（9）或抽吸器（6）或通过调整柯恩达装置（7）的尺寸来调节沉积距离M. 离开抽吸器的纤维的偏转允许独立于沉积距离M调节纺丝距离L，而不必移动纺丝束或调节幅材成形带的高度。

4. 发明授权

US3978561A Apparatus for texturing continuous filament yarn 失效
标题翻译：用于织造连续长丝纱的装置
公开(公告)号：US3978561A
公开(公告)日：1976-09-07
申请号：US566206
申请日：1975-04-09
申请人： Alexander L. Trifunovic , William H. Hills , Milton H. Borgman , Emory P. Mersereau
发明人： Alexander L. Trifunovic , William H. Hills , Milton H. Borgman , Emory P. Mersereau
IPC分类号： D02G1/12
CPC分类号： D02G1/12 , D02G1/125
摘要： A method and apparatus for texturing continuous filament yarn wherein the yarn is fed at a controlled rate and under controlled tension into a confined crimping zone against a mass of crimped yarn therein causing the yarn to collapse longitudinally forming crimps which become part of such mass. Heat and pressure are applied to the yarn mass in the crimping zone to plastically deform the yarn and partially set the crimps. The crimped yarn mass is then fed at a controlled rate from the crimping zone into a setting zone. Heat and pressure are applied to the yarn mass in the setting zone to fully set the crimps. The pressure applied to the yarn mass in the setting zone is substantially only sufficient to keep the crimps closed during the final setting thereof. The crimped yarn mass is then fed from the setting zone into a cooling zone. The yarn mass is cooled in the cooling zone to a temperature below that at which the yarn undergoes any molecular structural alteration in the absence of the application of a substantial force thereto. Finally, the yarn is withdrawn at a controlled rate from the cooling zone in continuous filament form.
摘要翻译：用于织造连续长丝纱线的方法和设备，其中纱线以受控的速率并且在受控的张力下被输送到限制卷曲区域中，以抵抗一批卷曲纱线，导致纱线纵向折叠，形成卷曲，这些卷曲成为这种质量的一部分。对卷曲区域中的纱线质量施加热和压力，以使纱线塑性变形并部分地设定卷曲。然后将卷曲的纱线质量以受控的速率从卷曲区进给到设定区。对设定区域中的纱线质量施加热和压力，以完全设定卷曲。施加到设定区域中的纱线质量的压力基本上仅足以在最终设定期间保持卷曲闭合。然后将卷曲的纱线质量从固化区进入冷却区。纱线质量在冷却区域被冷却至低于在不施加大量力的情况下纱线经历任何分子结构改变的温度。最后，以连续的长丝形式从冷却区以受控的速率取出纱线。

5. 发明授权

US4849113A Continuous polymer filter 失效
标题翻译：连续聚合物过滤器
公开(公告)号：US4849113A
公开(公告)日：1989-07-18
申请号：US197281
申请日：1988-05-23
申请人： William H. Hills
发明人： William H. Hills
IPC分类号： B01D29/09 , B01D35/12 , B29C47/68
CPC分类号： B29C47/685 , B01D29/09 , B01D35/12 , B29C47/0014 , B29C47/0021
摘要： An improved continuous polymer filter of the screen belt type employs a valve arrangement to selectively apportion the extruder output flow through at least two filter paths. In the neutral valve position both filter paths receive polymer at equal flow rates creating a pressure across the screen belts that is too high to permit the screen belts to be advanced when a clogged belt section requires replacement with a clean section. To effect screen belt advancement, the valve is actuated to reduce the flow rate in the filter path requiring the replacement while increasing the flow rate to the same degree in the other filter path so that the net flow rate remains substantially constant. The screen belt receiving the reduced flow experiences a sufficiently reduced pressure drop thereacross to permit it to be advanced in a conventional manner, after which the valve is returned to its neutral state. The screen belts in both paths are advanced alternately while maintaining a constant net flow and assuring sufficient flow through the reduced flow path to avoid entry of air into the filter path. Valve actuation and screen belt advancement may be effected automatically and in synchronization in response to a pre-set timer, to detected pressure conditions in the flowing polymer, or other parameters.
摘要翻译：筛网带类型的改进的连续聚合物过滤器使用阀装置来选择性地分配通过至少两个过滤路径的挤出机输出流量。在中性阀位置，两个过滤路径都以相等的流量接收聚合物，从而产生跨越筛网带的压力，这太大，以至于当堵塞的皮带部分需要更换干净的部分时，才允许筛网带进给。为了实现屏幕带前进，阀被致动以减少需要更换的过滤器路径中的流量，同时在另一个过滤路径中将流量增加到相同程度，使得净流量基本保持恒定。接收减小流量的筛网带经历足够降低的压降，以允许其以常规方式前进，之后阀返回到其中立状态。两个路径中的筛网带交替进行，同时保持恒定的净流量并确保足够的流动通过减小的流动路径，以避免空气进入过滤路径。可以根据预先设定的定时器，流动的聚合物中检测到的压力条件或其他参数自动实现阀门致动和筛网带的前进。

6. 发明授权

US4406850A Spin pack and method for producing conjugate fibers 失效
标题翻译：旋转组合物和复合纤维的制造方法
公开(公告)号：US4406850A
公开(公告)日：1983-09-27
申请号：US305219
申请日：1981-09-24
申请人： William H. Hills
发明人： William H. Hills
IPC分类号： D01D5/34 , D01D3/00
CPC分类号： D01D5/34
摘要： Sheath-core bi-component fibers are formed by an improvement of the method and apparatus described in U.S. Pat. No. 2,936,482 whereby molten sheath polymer is issued in ribbons into a recessed portion of the top surface of the spinneret from locations between rows of raised spinneret channel inlets. Ribbon flow of the sheath polymer is achieved in slot-like channels which are inter-leaved with rows of core polymer flow passages to optimize space utilization and spinneret channel density. Filtering of the core and sheath polymer is achieved in separate manifolds leading to the core flow passages and sheath slot-like flow channels which are kept to minimal length to minimize polymer residence time downstream of the filters.
摘要翻译：护芯双组分纤维是通过改进美国专利No. 其中熔融的鞘聚合物从带状喷丝板通道入口的行之间的位置以带状形式发布到喷丝头的顶表面的凹陷部分中。护套聚合物的带状流在狭缝状通道中实现，该槽状通道与芯聚合物流动通道相互交叉以优化空间利用率和喷丝孔通道密度。芯和鞘聚合物的过滤在分离的歧管中实现，其导致芯流动通道和鞘槽状流动通道，其保持最小长度以使过滤器下游的聚合物停留时间最小化。

7. 发明授权

US07309430B2 Filtration system utilizing a single valve to direct fluid streams between filter assemblies and corresponding methods 有权
标题翻译：过滤系统利用单个阀来在过滤器组件之间引导流体流和相应的方法
公开(公告)号：US07309430B2
公开(公告)日：2007-12-18
申请号：US10296249
申请日：2002-12-09
申请人： William H. Hills
发明人： William H. Hills
IPC分类号： B01D35/18
CPC分类号： B29C47/68 , B01D29/114 , B01D29/52 , B01D29/902 , B01D35/12 , B01D35/18 , B01D35/30 , B01D2201/0446 , B29C47/0021 , B29C47/081 , B29C47/0815 , B29C47/0884 , B29C47/681 , B29C47/687 , B29C47/92 , B29C2947/926 , B29C2947/92704 , B29C2947/92895 , Y10T137/86517 , Y10T137/86549
摘要： A filtration assembly for filtering polymer fluids at varying flow rates includes at least two filter housing assemblies releasably attached to a filter support or main block. Polymer fluid is delivered to the filter housing assemblies via an inlet passage in the main block, and filtered polymer fluid is transported from the filter housing assemblies to an outlet passage in the main block. One end of each filter housing assembly is attached to the main block and includes an inlet port for receiving polymer fluid from the inlet passage and an outlet port for delivering filtered polymer fluid to the outlet passage. A single valve disposed on the main block selectively alternates fluid flow between the main block and each filter housing assembly.
摘要翻译：用于以不同流速过滤聚合物流体的过滤组件包括至少两个可释放地附接到过滤器支撑件或主块的过滤器壳体组件。聚合物流体通过主块中的入口通道输送到过滤器壳体组件，并且过滤的聚合物流体从过滤器壳体组件输送到主块中的出口通道。每个过滤器壳体组件的一端附接到主块，并且包括用于从入口通道接收聚合物流体的入口端口和用于将过滤的聚合物流体输送到出口通道的出口。设置在主块上的单个阀选择性地交替在主块和每个过滤器壳体组件之间的流体流动。

8. 发明授权

US5462653A Apparatus for continuous polymer filtration 失效
标题翻译：连续聚合物过滤装置
公开(公告)号：US5462653A
公开(公告)日：1995-10-31
申请号：US196867
申请日：1994-02-15
申请人： William H. Hills
发明人： William H. Hills
IPC分类号： B01D29/11 , B01D35/143 , B01D36/00 , B29C47/68 , B01D33/00
CPC分类号： B29C47/68 , B01D29/114 , B01D35/143 , B01D36/001 , B29C47/0815 , B01D2201/165 , B01D2201/287 , B29C47/0019 , B29C47/0884 , B29C47/687
摘要： An improved continuous large area polymer filter employs a single valve to control molten polymer flow into and out from at least two but preferably three or more filter assemblies. In a neutral position the valve apportions flow equally to each of the filter assemblies. When filters in any one of the assemblies becomes clogged and requires cleaning or replacement, the valve is repositioned to prevent flow into and out from the clogged assembly while continuing to apportion flow among the remaining assemblies. A small amount of polymer is bled from the selected assembly to effect depressurization and the assembly is removed, restored to function and replaced. The valve is repositioned to allow a slow bleeding of polymer into the restored assembly and the bleed valve is opened to allow air and air entrapped polymer to be removed from the assembly before returning it to service. When the bleed valve flow has stabilized the valve is once again repositioned to allow full flow into and out from the serviced assembly and to apportion flow to each assembly. The valve has mechanical stops to prevent flow from being blocked to all of the assemblies simultaneously and a shield is attached to the valve to prevent access to operating assemblies. The shape of the filter cavities is tapered toward the output end to reduce the volume of molten polymer entrapped stagnantly between the cavity and the filter therein.
摘要翻译：改进的连续大面积聚合物过滤器采用单个阀来控制熔融聚合物流入和流出至少两个但优选三个或更多个过滤组件。在中性位置，阀分配平均流向每个过滤器组件。当任何一个组件中的过滤器堵塞并需要清洁或更换时，阀被重新定位，以防止流入和流出阻塞的组件，同时继续在其余组件之间分配流量。从所选择的组件中排出少量聚合物以实现减压，并且组装被去除，恢复功能并被替换。阀被重新定位以允许聚合物慢速渗透到恢复的组件中，并且泄放阀打开以允许空气和空气夹带的聚合物在返回使用之前从组件中移出。当泄放阀流量已经稳定时，阀再次重新定位，以允许完全流入和流出服务组件，并将流量分配给每个组件。阀具有机械止动件，以防止流动同时被阻塞到所有组件，并且屏蔽件附接到阀门以防止进入操作组件。过滤腔的形状朝向输出端逐渐变细，以减少熔融聚合物在空腔和过滤器之间滞留的体积。

9. 发明授权

US3982349A Fishing lure 失效
标题翻译：钓鱼诱惑
公开(公告)号：US3982349A
公开(公告)日：1976-09-28
申请号：US456063
申请日：1974-03-29
申请人： William H. Hills
发明人： William H. Hills
IPC分类号： A01K85/16 , A01K85/00
CPC分类号： A01K85/16
摘要： A fishing lure which comprises an elongated generally cylindrical body including opposite ends, one of which is hemispherical and the other of which is provided with intersecting sloped surfaces which intersect along a line forming one extremity of the lure. Hooks are connected to the body as, for example, centrally of the same and at one end thereof. The body is provided with a concealed weight which, due to the hemispherical form of the body is enabled to extend substantially to one extremity of the body. The sloped surfaces perform two functions, namely, that of improving aerodynamical design and of improving the performance of the lure when retrieved along the surface of the body of water.
摘要翻译：一种钓鱼诱饵，其包括细长的大致圆柱形的主体，其包括相对的端部，其中一个端部是半球形的，另一个具有相交的倾斜表面，该倾斜表面沿着形成诱饵一端的线相交。钩子与身体连接，例如在其一端的中心位置。身体设置有隐蔽的重量，由于身体的半球形状能够基本上延伸到身体的一个末端。倾斜的表面执行两个功能，即改善空气动力学设计和改善沿着水体表面检索时诱饵的性能的功能。

10. 发明授权

US5551588A Profiled multi-component fiber flow plate method 失效
标题翻译：型材多组分纤维流板法
公开(公告)号：US5551588A
公开(公告)日：1996-09-03
申请号：US470530
申请日：1995-06-06
申请人： William H. Hills
发明人： William H. Hills
IPC分类号： D01D5/30 , B44C1/22
CPC分类号： D01D4/06 , D01D5/30
摘要： An apparatus for extruding a wide variety of plural-component and mixed monocomponent fiber configurations in a spin pack which utilizes one or more disposable distributor plates in which distribution flow paths are formed on one or both sides to distribute the polymer components to appropriate spinneret inlet hole locations. The etching process, itself inexpensive as compared to drilling, milling, reaming, etc., permits very thin metal plates to be employed, rendering the fabrication expense for the plates small, relative to the remainder of the spin pack, as to justify discarding or disposing of the plates rather than periodically cleaning them. The etching process also permits the etched distribution paths to be small and densely packed, whereby the spinneret orifices can be more densely packed in the spinneret and staggered as between rows and columns so as to increase the fiber yield per given spinneret surface area. The etching process also permits the distribution paths to be sufficiently small to facilitate issuing multiple discrete polymer component streams axially into each spinneret orifice inlet hole, whereby the resulting extruded fiber can be made up of at least one hundred side-by-side sub-fibers. If the adjacent sub-fibers are weakly bonded, they can be readily separated by agitation or dissolution to significantly increase the effective yield from the spin pack and provide very fine and uniform fibers. Importantly, these product advantages are achieved because of the etched disposable distribution plate which reduces initial and maintenance costs and is selectively replaceable to permit differently configured fibers to be fabricated from the same spin pack assembly.
摘要翻译：一种用于在旋涂组中挤出多种多组分和混合的单组分纤维构型的装置，其利用一个或多个一次性分配板，其中在一侧或两侧形成分布流路，以将聚合物组分分配到合适的喷丝头入口孔位置。与钻孔，铣削，铰孔等相比，其本身便宜的蚀刻工艺允许使用非常薄的金属板，相对于旋转组件的其余部分，使板的制造费用较小，以证明丢弃或处理板而不是定期清洁它们。蚀刻工艺还允许蚀刻的分布路径小而密集地填充，由此喷丝头孔可以更密集地包装在喷丝板中并且在行和列之间交错，以便增加每个给定喷丝头表面积的纤维产量。蚀刻过程还允许分配路径足够小以便于将多个离散的聚合物组分流轴向地发送到每个喷丝孔入口孔中，由此所得到的挤出纤维可以由至少一百个并排副纤维。如果相邻的亚纤维是弱结合的，则它们可以通过搅拌或溶解而容易地分离，以显着提高纺丝组合物的有效产率，并提供非常细且均匀的纤维。重要的是，由于蚀刻的一次性分配板降低了初始和维护成本，并且可选择性地更换以允许由相同的纺丝组件制造不同构造的纤维，实现了这些产品优点。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式