公开(公告)号：US20120009406A1

公开(公告)日：2012-01-12

申请号：US12991192

申请日：2009-05-11

申请人： Brian C. Auman ,  Salah Boussaad ,  Thomas Edward Carney ,  Kostantinos Kourtakis ,  John W. Simmons

发明人： Brian C. Auman ,  Salah Boussaad ,  Thomas Edward Carney ,  Kostantinos Kourtakis ,  John W. Simmons

IPC分类号： B32B27/20

CPC分类号： C08G73/1007 ,  C08G73/1067 ,  C08J5/18 ,  C08J2379/08

摘要： The films of the present disclosure have a thickness from about 8 to about 150 microns and contain from about 40 to about 95 weight percent of a polyimide derived from: i. at least one aromatic dianhydride, at least about 85 mole percent of such aromatic dianhydride being a rigid rod type monomer, and ii. at least one aromatic diamine, at least about 85 mole percent of such aromatic diamine being a rigid rod type monomer. The films of the present disclosure further comprise a filler that: i. is less than about 800 nanometers in at least one dimension; ii. has an aspect ratio greater than about 3:1; iii. is less than the thickness of the film in all dimensions; and iv. is present in an amount from about 5 to about 60 weight percent of the total weight of the film.

摘要翻译： 本公开的膜具有约8至约150微米的厚度，并且包含约40至约95重量％的衍生自以下的聚酰亚胺： 至少一种芳族二酐，至少约85摩尔％的这种芳族二酐是刚性棒型单体，和ii。 至少一种芳族二胺，至少约85摩尔％的这种芳族二胺是刚性棒型单体。 本公开的膜还包括填料，其：i。 在至少一个维度上小于约800纳米; ii。 长宽比大于3：1; iii。 小于所有尺寸的膜的厚度; 和iv。 的含量为膜的总重量的约5至约60重量％。

公开(公告)号：US20110029050A1

公开(公告)日：2011-02-03

申请号：US12621034

申请日：2009-11-18

申请人： John Elefteriades ,  Grahame Gould ,  Remo Moomiae-Qajar ,  John W. Simmons ,  Eric Butt ,  Joel N. Helfer ,  Jeffrey E. Ransden

发明人： John Elefteriades ,  Grahame Gould ,  Remo Moomiae-Qajar ,  John W. Simmons ,  Eric Butt ,  Joel N. Helfer ,  Jeffrey E. Ransden

IPC分类号： A61F7/12

CPC分类号： A61F7/12 ,  A61F2007/0002 ,  A61F2007/0056

摘要： A method for cooling of a brain with localized hypothermia allowing for maintenance of the core body temperature is achieved by positioning a cooling catheter within a ventricular cavity of the brain. The cooling catheter includes an inlet channel and an outlet channel providing for a closed flow of a cooling fluid into and out of the cooling catheter. A sack is formed at a distal end of the cooling catheter. The sack is in fluid communication with distal ends of the inlet channel and the outlet channel such that the sack is continually flushed with the cooling fluid as the cooling fluid flows into and out of the cooling catheter. The sack, when filled, takes the shape and size of the ventricular cavity filling the ventricular cavity in which it is positioned. The method further includes cooling the cooling catheter and the ventricular cavity through the closed flow of the cooling fluid through the cooling catheter.

摘要翻译： 通过在脑的心室内定位冷却导管来实现通过局部低温冷却脑的温度的方法来维持核心体温。 冷却导管包括入口通道和出口通道，其提供冷却流体进入和离开冷却导管的封闭流。 在冷却导管的远端形成袋。 袋与入口通道和出口通道的远端流体连通，使得当冷却流体流入和流出冷却导管时，袋与冷却流体连续地冲洗。 袋子填充时，取心室的形状和尺寸填充其定位的心室。 该方法还包括通过冷却流体通过冷却导管的封闭流来冷却冷却导管和心室。

公开(公告)号：US07422623B2

公开(公告)日：2008-09-09

申请号：US11070041

申请日：2005-03-02

申请人： Okan Max Ekiner ,  John W. Simmons

发明人： Okan Max Ekiner ,  John W. Simmons

IPC分类号： B01D53/22 ,  B01D71/64 ,  B01D67/00

CPC分类号： B01D71/64 ,  B01D53/228 ,  B01D67/0009 ,  B01D67/0011 ,  B01D69/08 ,  B01D2323/06 ,  B01D2323/08 ,  B01D2325/24 ,  B01D2325/30 ,  C08G73/1042 ,  Y02P20/152 ,  Y10S55/05

摘要： This abstract discusses membranes needed to separate fluids for the production of oxygen-enriched air, nitrogen-enriched-air, for the separation of carbon dioxide from hydrocarbons, and the separation of hydrogen from various petrochemical and oil refining streams. Membranes are needed that provide a resistance to interaction with process components or contaminants, provide the mechanical strength required to withstand high membrane differential pressures and high process temperatures, and exhibit sufficient maximum strain such that membranes are not brittle and can easily be formed into desirable membrane forms. Membranes of polyimide polymers, particularly polyimide polymers sold under the trade name P-84, are annealed in a controlled annealing step to improve the mechanical properties of the polymers used to make separation membranes. The resulting annealed polyimide polymer is used to produce various forms of high strength, chemically resistant membranes, including hollow-fiber membranes that are suitable for high pressure, high temperature applications.

摘要翻译： 该摘要讨论了分离用于生产富氧空气，富氮空气，用于从碳氢化合物中分离二氧化碳的流体以及从各种石化和炼油流中分离氢气所需的膜。 需要提供与工艺组分或污染物相互作用的阻力的膜，提供耐受高膜差压和高工艺温度所需的机械强度，并且表现出足够的最大应变，使得膜不易脆并且可以容易地形成所需的膜 形式。 聚酰亚胺聚合物膜，特别是以商品名P-84出售的聚酰亚胺聚合物的膜在受控退火步骤中退火，以改善用于制备分离膜的聚合物的机械性能。 所得退火的聚酰亚胺聚合物用于生产各种形式的高强度，耐化学腐蚀的膜，包括适用于高压，高温应用的中空纤维膜。

公开(公告)号：US5352273A

公开(公告)日：1994-10-04

申请号：US45782

申请日：1993-04-14

申请人： John W. Simmons ,  Samuel D. Arthur

发明人： John W. Simmons ,  Samuel D. Arthur

IPC分类号： B01D53/22 ,  B01D71/48

CPC分类号： B01D71/48 ,  B01D53/228

摘要： Novel alkyl-substituted aromatic polyester gas separation membranes and the process of using such membranes to separate one or more gases from a gaseous mixture is disclosed. The polyesters are formed from aromatic alcohols of the formula ##STR1## where Z is independently alkyl groups having 1 to 10 carbon atoms, most preferably a tertiary butyl group, n is an integer from 0 to 4, preferably 1.

摘要翻译： 公开了新的烷基取代的芳族聚酯气体分离膜和使用这种膜从气体混合物中分离出一种或多种气体的方法。 聚酯由下式的芳族醇形成：其中Z独立地为具有1-10个碳原子的烷基，最优选为叔丁基，n为0-4的整数，优选为1。

公开(公告)号：US5303405A

公开(公告)日：1994-04-12

申请号：US753775

申请日：1991-09-03

申请人： John W. Simmons ,  Walter H. Kehler

发明人： John W. Simmons ,  Walter H. Kehler

IPC分类号： H03G3/34 ,  H04B1/16 ,  H04B1/10

CPC分类号： H03G3/344

摘要： A squelch circuit (200) having an input is provided including a programmable high pass filter (206) for filtering the input signal to produce a filtered signal. The filtered signal is rectified via a differential rectifier (201) to produce a rectified signal. The squelch circuit (200) also includes a threshold comparator (323) coupled to the differential rectifier (201) for sensing when the rectified signal exceeds a squelch threshold.

摘要翻译： 提供具有输入的静噪电路（200），其包括用于对输入信号进行滤波以产生滤波信号的可编程高通滤波器（206）。 滤波后的信号通过差动整流器（201）整流，以产生整流信号。 静噪电路（200）还包括耦合到差分整流器（201）的阈值比较器（323），用于感测整流信号何时超过静噪阈值。

公开(公告)号：US08101009B2

公开(公告)日：2012-01-24

申请号：US12206449

申请日：2008-09-08

申请人： Okan Max Ekiner ,  John W. Simmons

发明人： Okan Max Ekiner ,  John W. Simmons

IPC分类号： B01D53/22 ,  B01D71/64 ,  B01D67/00

CPC分类号： B01D53/228 ,  B01D67/0009 ,  B01D67/0011 ,  B01D69/08 ,  B01D71/64 ,  B01D2323/14 ,  C08G18/341 ,  C08G73/1035 ,  C08G73/1046 ,  C08G73/1053 ,  C08G73/1064 ,  C08G73/1067 ,  C08G73/1071 ,  C08L77/10 ,  C08L79/04 ,  C08L79/08 ,  C08L81/06 ,  Y02P20/152 ,  Y10S55/05 ,  C08L2666/20 ,  C08L2666/22

摘要： This abstract discusses membranes needed to separate fluids for the production of oxygen-enriched air, nitrogen-enriched-air, for the separation of carbon dioxide from hydrocarbons, and the separation of hydrogen from various petrochemical and oil refining streams. Membranes are needed that provide a resistance to interaction with process components or contaminants, provide the mechanical strength required to withstand high membrane differential pressures and high process temperatures, and exhibit sufficient maximum strain such that membranes are not brittle and can easily be formed into desirable membrane forms. Membranes of polyimide polymers, particularly polyimide polymers sold under the trade name P-84, are annealed in a controlled annealing step to improve the mechanical properties of the polymers used to make separation membranes. The resulting annealed polyimide polymer is used to produce various forms of high strength, chemically resistant membranes, including hollow-fiber membranes that are suitable for high pressure, high temperature applications.

摘要翻译： 该摘要讨论了分离用于生产富氧空气，富氮空气，用于从碳氢化合物中分离二氧化碳的流体以及从各种石化和炼油流中分离氢气所需的膜。 需要提供与工艺组分或污染物相互作用的阻力的膜，提供耐受高膜差压和高工艺温度所需的机械强度，并且表现出足够的最大应变，使得膜不易脆并且可以容易地形成所需的膜 形式。 聚酰亚胺聚合物膜，特别是以商品名P-84出售的聚酰亚胺聚合物的膜在受控退火步骤中退火，以改善用于制备分离膜的聚合物的机械性能。 所得退火的聚酰亚胺聚合物用于生产各种形式的高强度，耐化学腐蚀的膜，包括适用于高压，高温应用的中空纤维膜。

公开(公告)号：US07025804B2

公开(公告)日：2006-04-11

申请号：US10723387

申请日：2003-11-25

申请人： John W. Simmons ,  Sudhir Kulkarni ,  Okan M. Ekiner

发明人： John W. Simmons ,  Sudhir Kulkarni ,  Okan M. Ekiner

IPC分类号： B01D53/22 ,  B01D71/64 ,  B01D69/12

CPC分类号： B01D71/62 ,  B01D53/228 ,  C07C7/144 ,  C10G70/045 ,  C07C9/02 ,  C07C11/02

摘要： A method of separating or concentrating hydrocarbon-containing gas mixtures such as hydrogen from hydrocarbons, carbon dioxide from hydrocarbons, nitrogen from hydrocarbons, and hydrocarbons from one another using a selectively permeable membrane. The method is well suited to separate hydrocarbon-containing mixtures such as those generated by petroleum refining industries, petrochemical industries, natural gas processing, and the like. The membranes exhibit extremely good resistance to plasticization by hydrocarbon components in the gas mixture under practical industrial process conditions.

摘要翻译： 使用选择性渗透膜从碳氢化合物中分离或浓缩来自烃类的烃类气体混合物，来自烃的烃类，来自烃类的二氧化碳，来自烃的氮，以及使用选择性渗透膜的碳氢化合物的方法。 该方法非常适用于分离含石油混合物，例如由石油炼制工业，石化工业，天然气加工等产生的混合物。 在实际的工业工艺条件下，膜在气体混合物中表现出非常好的耐烃性组分的抗塑化性。

公开(公告)号：US06383258B1

公开(公告)日：2002-05-07

申请号：US09740286

申请日：2000-12-19

申请人： John W. Simmons

发明人： John W. Simmons

IPC分类号： B01D5322

CPC分类号： B01D71/64 ,  B01D53/228 ,  Y02C10/10

摘要： A gas separation membrane is formed from a copolyimide produced by copolymerization of monomers which include o-tolidine sulfone, at least one other hydrophilic diamine and 2,2-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride. One or more additional aromatic dianhydrides can optionally be included. The novel membrane exhibits an excellent combination of high selectivity of gases to be separated from a gas mixture, high permeability and strong solvent resistance to hydrocarbon chemicals. The membrane is therefore useful in separating gases from gas mixtures in which vapor or liquid hydrocarbon contaminants are present, for example in the separation of carbon dioxide from methane and/or nitrogen in the purification of natural gas.

摘要翻译： 气体分离膜由通过包括邻甲苯胺砜，至少一种其它亲水二胺和2,2-双（3,4-二羧基苯基）六氟丙烷二酐的单体的共聚合产生的共聚酰亚胺形成。 可以任选地包括一种或多种另外的芳族二酸酐。 新型膜显示出与气体混合物分离的高选择性气体的优异组合，对烃化学品具有高渗透性和耐溶剂性。 因此，膜可用于从气体混合物中分离气体，其中存在蒸气或液态烃污染物，例如在天然气净化中从甲烷和/或氮气中分离二氧化碳。

公开(公告)号：US5310415A

公开(公告)日：1994-05-10

申请号：US057032

申请日：1993-05-05

申请人： John W. Simmons ,  Okan M. Ekiner

发明人： John W. Simmons ,  Okan M. Ekiner

IPC分类号： B01D71/64 ,  C08G73/14 ,  C08L79/08 ,  B01D53/22

CPC分类号： B01D71/64 ,  C08G73/14 ,  C08L79/08

摘要： Novel polyimide and polyamide-imide gas separation membranes and the process of using such membranes to separate one or more gases from a gaseous mixture is disclosed. The polyimides and polyamide-imides are formed from a blend of diamines containing the ester derived from 1,3-diamino-2-hydroxypropane.

摘要翻译： 公开了新型聚酰亚胺和聚酰胺 - 酰亚胺气体分离膜以及使用这种膜从气体混合物中分离出一种或多种气体的方法。 聚酰亚胺和聚酰胺 - 酰亚胺由含有衍生自1,3-二氨基-2-羟基丙烷的酯的二胺的混合物形成。

公开(公告)号：US20130033335A1

公开(公告)日：2013-02-07

申请号：US13195486

申请日：2011-08-01

申请人： John W. Simmons ,  Kristopher K. Kaufman ,  Michael L. Gomez

发明人： John W. Simmons ,  Kristopher K. Kaufman ,  Michael L. Gomez

IPC分类号： H03B5/18 ,  G06G7/02

CPC分类号： H03H17/0294 ,  H03H17/0283 ,  H03H17/06 ,  H03H2017/0295

摘要： In accordance with some embodiments of the present disclosure, a method for tuning a semi-digital finite impulse response (sFIR) filter comprises coupling a switch between an output of a shift register element associated with an input of the sFIR filter and a resistor coupled to an output of the sFIR filter. The shift register element and the resistor are associated with a tap of the sFIR filter. The method further comprising at least one of closing the switch according to a control signal to couple the resistor with the output of the shift register element such that a tap is added to the sFIR filter and opening the switch according to the control signal to decouple the resistor from the output of the shift register element such that a tap is subtracted from the sFIR filter to tune the corner frequency of the sFIR filter.

摘要翻译： 根据本公开的一些实施例，用于调整半数字有限脉冲响应（sFIR）滤波器的方法包括将与sFIR滤波器的输入相关联的移位寄存器元件的输出与耦合到 sFIR滤波器的输出。 移位寄存器元件和电阻与sFIR滤波器的抽头相关联。 该方法还包括根据控制信号关闭开关的至少一个，以将电阻器与移位寄存器元件的输出耦合，使得抽头被添加到sFIR滤波器并且根据控制信号打开开关以去耦 电阻器，从移位寄存器元件的输出，使得从sFIR滤波器中减去抽头以调整sFIR滤波器的转角频率。