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71. 发明授权

US06306323B1 Extrusion of polymers 失效
标题翻译：聚合物的挤出
公开(公告)号：US06306323B1
公开(公告)日：2001-10-23
申请号：US08891757
申请日：1997-07-14
申请人： Edward F. Chu , Susan M. Jordan , John Lahlouh
发明人： Edward F. Chu , Susan M. Jordan , John Lahlouh
IPC分类号： B29C4772
CPC分类号： B29C47/367 , B29C47/0014 , B29C47/0021 , B29C47/364 , B29C47/38 , B29C47/92 , B29C2947/92019 , B29C2947/9238 , B29C2947/9239 , B29C2947/92514 , B29C2947/92809 , B29C2947/92876 , B29C2947/92885
摘要： Processes and apparatus for melt extrusion of polymeric compositions, particularly conductive polymers, in which a gear pump delivers molten polymeric composition to an extrusion orifice. Overfeeding of the composition due to pressure variations is avoided by means of a polymer relief means, preferably a second, smaller gear pump, which removes a portion of the molten composition when the pressure exceeds a selected level.
摘要翻译：用于熔融挤出聚合物组合物，特别是导电聚合物的方法和设备，其中齿轮泵将熔融聚合物组合物输送到挤出孔。通过聚合物释放装置，优选第二较小的齿轮泵避免由于压力变化引起的组合物的过度进料，当压力超过所选择的水平时，其移除熔融组合物的一部分。

72. 发明授权

US06190591B1 Embedding and encapsulation of controlled release particles 有权
标题翻译：控释颗粒的嵌入和包封
公开(公告)号：US06190591B1
公开(公告)日：2001-02-20
申请号：US09269763
申请日：1999-05-17
申请人： Bernhard H. van Lengerich
发明人： Bernhard H. van Lengerich
IPC分类号： B29C4700
CPC分类号： B29C47/60 , A23L27/72 , A23L29/212 , A23P10/25 , A23P10/30 , A61K9/1652 , A61K9/1694 , B01J13/02 , B01J13/04 , B29C47/0004 , B29C47/0011 , B29C47/0021 , B29C47/1063 , B29C47/30 , B29C47/92 , B29C2793/009 , B29C2947/92019 , B29C2947/92047 , B29C2947/92095 , B29C2947/92209 , B29C2947/92314 , B29C2947/9238 , B29C2947/924 , B29C2947/92514 , B29C2947/9258 , B29C2947/9259 , B29C2947/926 , B29C2947/92657 , B29C2947/92666 , B29C2947/92676 , B29C2947/92695 , B29C2947/92704 , B29C2947/92723 , B29C2947/92809 , B29C2947/92828 , B29C2947/92838 , B29C2947/92847 , B29C2947/92876 , B29C2947/92885 , B29C2947/92895 , B29C2947/92933 , B29K2003/00 , B29K2105/0005 , Y02A50/387 , Y02A50/465 , Y02A50/469 , Y02A50/471
摘要： Controlled release, discrete, solid particles which contain an encapsulated and/or embedded component such as a heat sensitive destruction or readily oxidizable pharnaceutically, biologically, or nutritionally active component are continuously produced without substantial destruction of the matrix or encapsulant. A release-rate controlling component is incorporated into the matrix to control the rate of release the encapsulant from the particles. the additional component may be a hydrophobic component or a high water binding capacity component for extending the release time. The plasticizable matrix material, such as starch, is admixed with at least one plasticizer, such as water, and at least one release-rate controlling component under low shear mixing conditions to plasticize the plasticizable material without substantially destroying the at least one plasticizable material and to obtain a substantially homogeneous plasticized mass. The plasticizer content is substantially reduced and the temperature of the plasticized mass is substantially reduced prior to admixing the plasticized mass with the encapsulant to avoid substantial destruction of the encapsulant and to obtain a formable, extrudable mixture. The mixture is extruded though a die without substantial or essentially no expansion and cut into discrete, relatively dense particles. Release properties may also be controlled by precoating the encapsulant and/or coating the extruded particles with a film-forming component.
摘要翻译：含有包封和/或嵌入组分（例如热敏性破坏或易于氧化的药物，生物学或营养活性成分）的受控释放的离散固体颗粒被连续地生产而基本上不破坏基质或密封剂。将释放速率控制组分并入基质中以控制从颗粒中释放密封剂的速率。附加组分可以是用于延长释放时间的疏水组分或高水结合能力组分。可塑性基质材料如淀粉在低剪切混合条件下与至少一种增塑剂（例如水）和至少一种释放速率控制组分混合，以塑化可塑化材料，而基本上不破坏至少一种可塑化材料，以获得基本均匀的增塑物质。在将塑化的物料与密封剂混合之前，增塑剂含量基本上降低并且塑化物料的温度显着降低，以避免密封剂的显着破坏并获得可成形的可挤压混合物。混合物通过模具挤出而没有实质的或基本上没有膨胀，并切成离散的相对致密的颗粒。释放性质也可以通过预先涂覆密封剂和/或用成膜组分涂覆挤出的颗粒来控制。

73. 发明授权

US6004124A Thin-wall tube liquifier 失效
标题翻译：薄壁管液化器
公开(公告)号：US6004124A
公开(公告)日：1999-12-21
申请号：US13388
申请日：1998-01-26
申请人： William J. Swanson , Paul E. Hopkins
发明人： William J. Swanson , Paul E. Hopkins
IPC分类号： B29C47/12 , B29C67/00 , B29C41/02 , B29C41/46
CPC分类号： B29C67/0062 , B29C47/12 , B29C67/0092 , B29C2947/92514 , B29C2947/92552 , B29C2947/92571 , B29C2947/92704 , B29C2947/92809 , B29C2947/92876 , B29C2947/92904 , B29C47/0014 , B29C47/0021
摘要： A rapid prototyping system has a liquifier carried by a extrusion head. The liquifier is formed of a single piece of thin-wall tubing preferably made of metal, encased in a heating block. The thin-wall tube has a inlet end for receiving a filament of molding material and an outlet end for delivering the material in liquid form. A first section of the tube adjacent the inlet end functions as the entrance or cap zone. This first section of the tube is exterior to the heating block. The tube has a second section which passes through the heating block forming a heating zone. A nozzle can be formed by swaging the outlet end of the tube to a nozzle geometry, or, a nozzle may be brazed or welded to the outlet end of the tube. The heating block preferably contains a heating element in heat exchange relation to the second section of the tube to heat the filament to a temperature just above its solidification temperature. The extrusion head may alternatively carry two liquifiers that share a common nozzle, for receiving and dispensing two different materials.
摘要翻译：快速成型系统具有由挤压头承载的液化器。液化器由优选由金属制成的单片薄壁管制成，封装在加热块中。薄壁管具有用于接收成型材料丝的入口端和用于输送液体形式的材料的出口端。邻近入口端的管的第一部分用作入口或帽区。管的第一部分是加热块的外部。管具有通过加热块的第二部分，形成加热区。可以通过将管的出口端模锻到喷嘴几何形状来形成喷嘴，或者可以将喷嘴钎焊或焊接到管的出口端。加热块优选地包含与管的第二部分热交换的加热元件，以将丝线加热至刚好高于其固化温度的温度。挤出头可替代地携带两个共用共同喷嘴的液化器，用于接收和分配两种不同的材料。

74. 发明授权

US5909958A Screw extruder with independently adjustable groove depth 失效
标题翻译：螺杆挤出机，可独立调节槽深
公开(公告)号：US5909958A
公开(公告)日：1999-06-08
申请号：US846129
申请日：1997-04-25
申请人： Chris J. Rauwendaal
发明人： Chris J. Rauwendaal
IPC分类号： B29C47/58 , B29C47/84 , B29C47/92 , B29B7/60
CPC分类号： B29C47/847 , B29C47/585 , B29C47/666 , B29C47/668 , B29C47/92 , B29C2947/92019 , B29C2947/92209 , B29C2947/92361 , B29C2947/92514 , B29C2947/92533 , B29C2947/92628 , B29C2947/92638 , B29C2947/92704 , B29C2947/92876 , B29C2947/92885 , B29C2947/92895 , B29C2947/92904 , B29C47/0009 , B29C47/0813 , B29C47/0871 , B29C47/1081
摘要： A screw extruder (10), including a barrel assembly (12) having a central bore (36) which defines an inner surface (37). An extruder screw (38) is positioned within the barrel assembly's (12) central bore (36). The barrel assembly (12) has an input end (20) which includes a feed housing portion (25), the feed housing portion (25) having an opening for introduction of material into the central bore (36). There is a shaping die (18) situated at the output end (16) of the barrel assembly (12) to shape the extruded material. The feed housing portion (25) also has one or more groove channels (44) opening into the inner surface (37) of the feed housing portion (25) with a key (48) disposed in each of these groove channels (44). Contacting each key (48) are one or more independently activated actuators (28) which can be used to adjust the radial depths of the keys (48) in the groove channels (44) thus controlling the depth of grooves (46) formed between the keys (48) and the central bore (36) of the barrel (12). A control loop may be established by monitoring a process parameter such as barrel assembly pressure by a sensor (32). This data is fed to a process controller (34), which then adjusts the actuators (28) independently to control the groove (46) depths and thus control the process parameter. Also disclosed is a method for controlling extrusion from a screw extruder (10).
摘要翻译：一种螺杆挤出机（10），包括具有限定内表面（37）的中心孔（36）的筒组件（12）。挤出机螺杆（38）定位在筒组件（12）中心孔（36）内。枪管组件（12）具有包括进给壳体部分（25）的输入端（20），所述进给容纳部分（25）具有用于将材料引入中心孔（36）的开口。存在位于筒组件（12）的输出端（16）处的成形模具（18），以使挤压材料成形。进料容纳部分（25）还具有一个或多个凹槽通道（44），其通过设置在每个凹槽通道（44）中的键（48）而进入到进料容纳部分（25）的内表面（37）中。接合每个键（48）是一个或多个独立激活的致动器（28），其可以用于调节凹槽通道（44）中的键（48）的径向深度，从而控制形成在凹槽（46）之间的凹槽（46）的深度键（48）和筒体（12）的中心孔（36）。可以通过由传感器（32）监测诸如筒组件压力的过程参数来建立控制回路。该数据被馈送到过程控制器（34），然后该过程控制器（34）独立地调节致动器（28）以控制凹槽（46）深度，从而控制过程参数。还公开了一种用于控制从螺杆挤出机（10）挤出的方法。

75. 发明授权

US5836680A Extruder with feedback loop control 失效
标题翻译：具有反馈回路控制的挤出机
公开(公告)号：US5836680A
公开(公告)日：1998-11-17
申请号：US622662
申请日：1996-03-26
申请人： Mark Daniel Banas , Gary Robert Burg , Malcolm George Marshall , Thomas Alan Murray , Bruce Joseph Turner
发明人： Mark Daniel Banas , Gary Robert Burg , Malcolm George Marshall , Thomas Alan Murray , Bruce Joseph Turner
IPC分类号： B29C47/58 , B29C47/38 , B29C47/92 , B29K21/00 , B29C47/00
CPC分类号： B29C47/667 , B29C47/38 , B29C47/6025 , B29C47/6043 , B29C47/666 , B29C47/92 , B29C2947/92114 , B29C2947/9218 , B29C2947/92209 , B29C2947/92466 , B29C2947/9259 , B29C2947/926 , B29C2947/92704 , B29C2947/92876 , B29C2947/92885 , B29C2947/92933 , B29C47/0021
摘要： An extruder for extruding an associated material includes an extruder housing that has a feed section, a center section that includes a throttle section, and an outlet section with an extruder screw disposed in the extruder housing. The extruder also includes a throttle at the throttle section. The throttle has a plurality of pins that extend radially into the housing. The pins are adjusted by a cam extending around the extruder housing. The cam has an inner wall that has a plurality of cam surfaces engageable by pins. The radius of each of the cam surfaces gradually decreases from a maximum radius to a minimum radius distance. The pins have springs that urge the pins radially outward to contact the inner wall of the cam. The cam is rotated by a piston and cylinder assembly. The extruder further includes sensors for temperature, gauge, weight, and other properties of the material. The extruder also has a control apparatus for controlling the speed of the extruder and the throttle based upon any combination of temperature, gauge, weight, and production requirements while the extruder is in operation.
摘要翻译：用于挤出相关材料的挤出机包括挤出机壳体，其具有进料部分，包括节流部分的中心部分和具有设置在挤出机壳体中的挤出机螺杆的出口部分。挤压机还包括在节流部分处的节气门。节气门具有径向延伸到壳体中的多个销。销通过围绕挤出机壳体延伸的凸轮进行调节。凸轮具有内壁，该内壁具有可通过销接合的多个凸轮表面。每个凸轮表面的半径从最大半径逐渐减小到最小半径距离。销具有弹簧，其将销径向向外推动以接触凸轮的内壁。凸轮由活塞和气缸组件旋转。挤出机还包括用于材料的温度，规格，重量和其它性能的传感器。挤出机还具有用于在挤出机运行时基于温度，量规，重量和生产要求的任何组合控制挤出机和节流阀的速度的控制装置。

76. 发明授权

US5347852A On-line rheological measurements for process control 失效
标题翻译：过程控制在线流变学测量
公开(公告)号：US5347852A
公开(公告)日：1994-09-20
申请号：US29792
申请日：1993-03-11
申请人： Paul G. Mode
发明人： Paul G. Mode
IPC分类号： B29C47/92 , G01N11/08 , G01N33/44
CPC分类号： B29C47/92 , G01N11/08 , B29C2947/92019 , B29C2947/92104 , B29C2947/922 , B29C2947/92209 , B29C2947/9238 , B29C2947/92457 , B29C2947/92514 , B29C2947/9258 , B29C2947/926 , B29C2947/92704 , B29C2947/92876 , B29C2947/92952 , B29C47/0009 , G01N2011/0013 , G01N33/44 , G01N33/442
摘要： On-line rheological measurements are made utilizing a rheometer of the type in which a first metering pump delivers diverted melt from a process main stream to a capillary passage and a second metering pump returns the diverted melt from the capillary passage to the process main stream and the viscosity of the diverted melt is measured by controlling the rate of flow of the melt through the capillary passage to maintain constant the pressure drop between spaced apart locations along the capillary passage and measuring the temperature of the melt in the capillary passage. The measurements may be made while controlling the speed of the second metering pump independent of the speed of the first metering pump to maintain the pressure at the exit of the capillary passage essentially constant. A parallel flow passage has an inlet placed between the first metering pump and the entrance to the capillary passage, in close juxtaposition with the entrance and an outlet placed between the exit from the capillary passage and the second metering pump, and a valve in the parallel flow passage is operated so that diverted melt selectively is passed through the parallel flow passage to attain a relatively quick response and relatively short residence time of the diverted melt in the rheometer.
摘要翻译：在线流变学测量使用流变仪，其中第一计量泵将转移的熔体从过程主流输送到毛细通道，并且第二计量泵将转向的熔体从毛细管通道返回到过程主流，通过控制通过毛细管通道的熔体的流动速率来测量转向熔体的粘度，以保持沿着毛细通道的间隔开的位置之间的压降恒定，并测量毛细管通道中熔体的温度。可以在不依赖第一计量泵的速度控制第二计量泵的速度的同时进行测量，以保持毛细通道出口处的压力基本恒定。平行流动通道具有置于第一计量泵和毛细管通道入口之间的入口，与入口并排放置在从毛细管通道的出口和第二计量泵之间并排放置的并口操作流动通道，使得分流的熔体选择性地通过平行流动通道，以获得相对快速的反应，并且转向的熔体在流变仪中的停留时间相对较短。

77. 发明授权

US5286433A Method and device for pressure balancing of hoses at extruding of two components 失效
标题翻译：用于挤压两个部件的软管压力平衡的方法和装置
公开(公告)号：US5286433A
公开(公告)日：1994-02-15
申请号：US842124
申请日：1992-03-24
申请人： Kjell Sand
发明人： Kjell Sand
IPC分类号： B05B12/00 , B05B7/12 , B05B15/00 , B05C11/10 , B29C31/06 , B29C47/10 , B29C47/92 , B67D7/74 , F16L11/12 , B29C47/12
CPC分类号： B29C47/92 , B05C11/10 , B05C11/1036 , B29C2947/92514 , B29C2947/92876 , B29C2947/92895 , B29C2947/92904 , B29C47/0009 , Y10T137/2514
摘要： A method and apparatus for supplying two different components at two different flow rates to an extrusion head. A first component is delivered to an extrusion head through a first hose at a predetermined pressure. A second component is delivered to the extrusion head through a second hose at substantially the same predetermined pressure as the first component. The second hose extends partially through the first hose so that both components are delivered to the extrusion head at constant equal pressures.
摘要翻译：用于在向挤出头（13）施加基本上相同的压力的两个不同部件的供给下对软管进行压力平衡的方法和装置，其中所述第二部件的流动实质上低于所述第一部件的流动。在热塑性塑料挤出。用于在到达挤压头（13）的至少大部分路径期间供应第一部件的第一软管（10）被布置成包围第二软管（11）以供应第二部件。

78. 发明授权

US5255973A Plastifier with throttle means 失效
标题翻译：具有节流装置的增塑剂
公开(公告)号：US5255973A
公开(公告)日：1993-10-26
申请号：US898902
申请日：1992-06-11
申请人： Alfred Nogossek
发明人： Alfred Nogossek
IPC分类号： B29C47/40 , B29C47/92 , B29B7/72
CPC分类号： B29C47/402 , B29C47/38 , B29C47/92 , B29C2947/9258 , B29C2947/926 , B29C2947/92876 , B29C47/0009 , B29C47/0871
摘要： A plastifier extruder of the double-screw type has a slide plate shiftable toward and away from the screws at an acute angle to the axes thereof in a chamber having a trapezoidal axial cross section between extreme positions in which a surface of the plate parallel to the axes lies along one long side of the trapezoid and another limiting position in which the surface lies along the other long side of the trapezoid.
摘要翻译：双螺杆型增塑挤出机具有一滑板，该滑板能够在一个具有梯形轴向横截面的极板位置之间以与其轴线成锐角成锐角的方式移动，其中板的表面平行于轴位于梯形的一个长边和另一个限制位置，其中表面位于梯形的另一个长边。

79. 发明授权

US5065695A Apparatus for compensating for non-linear flow characteristics in dispensing a coating material 失效
标题翻译：用于补充涂层材料中非线性流动特性的装置
公开(公告)号：US5065695A
公开(公告)日：1991-11-19
申请号：US367388
申请日：1989-06-16
申请人： Carl N. Baron , Stephen L. Merkel , Robert C. Hall
发明人： Carl N. Baron , Stephen L. Merkel , Robert C. Hall
IPC分类号： B05C5/00 , B05C11/10 , G05B19/42 , G05D7/06
CPC分类号： G05B19/42 , B05C11/1013 , B05C11/1023 , G05D7/0635 , B29C2947/92019 , B29C2947/92409 , B29C2947/926 , B29C2947/92609 , B29C2947/92876 , B29C2947/92904 , G05B2219/45238 , G05B2219/49056
摘要： A fluid dispensing apparatus having a controller which operates to modify a tool speed signal from a robot and to generate a corrected signal to the dispenser nozzle flow controller which compensates for non-linear flow characteristics of fluids, such as non-Newtonian adhesive fluids, to maintain uniform bead size as the tool speed varies. The corrected tool speed signal is generated by computing the ideal flow for the tool speed signaled, comparing the computed flow with actual flow data stored in a memory using linear interpolation of data between the stored values, and generating a control signal modified in accordance with the comparison. The stored data is acquired by operation in a calibration mode wherein a series of standard signals is sent to the fluid controller while the actual flow at each signal level is measured and stored in a table. The method of operation corrects non-linear flow phenomena such as the shear-thinning effect.

80. 发明授权

US5045252A Method and apparatus for controlling rotary extruder 失效
标题翻译：用于控制旋转挤出机的方法和设备
公开(公告)号：US5045252A
公开(公告)日：1991-09-03
申请号：US425937
申请日：1989-10-24
申请人： Granville J. Hahn , Allen C. Bailey , Richard D. Antrim
发明人： Granville J. Hahn , Allen C. Bailey , Richard D. Antrim
IPC分类号： B29C47/52 , B29C47/92
CPC分类号： B29C47/92 , B29C47/522 , B29C2947/92019 , B29C2947/9238 , B29C2947/9239 , B29C2947/92514 , B29C2947/92876 , B29C2947/92885 , B29C2947/92952 , B29C47/0009
摘要： Method and apparatus for automatically controlling the operation of a rotary extruder, including using a pressure transducer (38, 40, 42) communicating with the annular space (50) between the barrel (12) and rotor (14) to monitor the hydraulic pressure of the melted polymer, using a microprocessor-based controller (62) to compare the measured pressure with a predetermined set point, and thereafter selectively controlling the speed of a feed drive motor (56) or melt drive motor (60) to maintain the melt pressure within a desired range while holding the extruder rotor speed constant.
摘要翻译：用于自动控制旋转挤出机的操作的方法和装置，包括使用与筒体（12）和转子（14）之间的环形空间（50）连通的压力传感器（38,40,42），以监测液压熔融的聚合物，使用基于微处理器的控制器（62）将测量的压力与预定的设定点进行比较，然后选择性地控制进给驱动马达（56）或熔体驱动马达（60）的速度以保持熔体压力在保持挤出机转子转速恒定的同时在期望的范围内。

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