公开(公告)号：USD537742S1

公开(公告)日：2007-03-06

申请号：US29241118

申请日：2005-10-24

Applicant: Yesenia V. Escorcia ,  Steven D. Pratt

Designer： Yesenia V. Escorcia ,  Steven D. Pratt

公开(公告)号：US06888607B2

公开(公告)日：2005-05-03

申请号：US10232787

申请日：2002-08-29

Applicant: Bobby Dean Landreth ,  Steven D. Pratt ,  Robert W. Pennisi ,  Ronald J. Kelley ,  Sivakumar Muthuswamy ,  David S. Fredley

Inventor： Bobby Dean Landreth ,  Steven D. Pratt ,  Robert W. Pennisi ,  Ronald J. Kelley ,  Sivakumar Muthuswamy ,  David S. Fredley

IPC: G02F1/13 ,  G02F1/133 ,  G02F1/1347 ,  G02F1/137 ,  G09G3/36 ,  G02F1/1345

CPC classification number: G02F1/13476 ,  G02F1/13306 ,  G02F1/13452 ,  G02F1/13718 ,  G02F2201/08 ,  G02F2203/34 ,  G09G3/3629

Abstract: Rewritable signs (100, 1300) that include bistable cholesteric liquid crystal layers (102, 1402, 1404, 1406) are provided. According to one embodiment a rewritable sign (100) is devoid of circuitry for establishing electric fields in localize regions for writing information to the rewritable sign (100), and is consequently inexpensive. In the latter embodiment, a separate information writer (400) that includes an array of pixel electrodes (404) that is driven by an active matrix (602) is used to write information on the rewritable sign. According to another embodiment a rewritable sign (1300) includes three cholesteric liquid layers (1402, 1404, 1406) each of which reflects a different primary color. The three cholesteric liquid crystal layers (1402, 1404, 1406) are interleaved with sets of conductive lines (1316, 1320, 1322, 1324) that are used to apply signals to the cholesteric liquid crystal layers (1402, 1404, 1406) for the purpose of writing information.

Abstract translation: 提供了包括双稳态胆甾型液晶层（102,1402,1404,1406）的可重写符号（100,1300）。 根据一个实施例，可重写符号（100）没有用于在用于将信息写入可重写符号（100）的本地化区域中建立电场的电路，因此便宜。 在后一实施例中，包括由有源矩阵（602）驱动的像素电极阵列（404）的单独信息写入器（400）用于写入关于可重写符号的信息。 根据另一个实施例，可重写标志（1300）包括三个胆固醇液体层（1402,1404,1406），每个胆固醇液体层反映不同的原色。 三个胆甾型液晶层（1402,1404,1406）与用于将信号施加到胆甾醇型液晶层（1402,1404,1406）的导线组（1316,1320,1322,1324）交错，用于 写信息的目的。

公开(公告)号：US06214487B1

公开(公告)日：2001-04-10

申请号：US09241190

申请日：1999-02-01

Applicant: Ronald J. Kelley ,  Robert J. Mulligan ,  Steven D. Pratt ,  Sivakumar Muthuswamy ,  Bobby Dean Landreth ,  Robert W. Pennisi

Inventor： Ronald J. Kelley ,  Robert J. Mulligan ,  Steven D. Pratt ,  Sivakumar Muthuswamy ,  Bobby Dean Landreth ,  Robert W. Pennisi

IPC: H01M804

CPC classification number: H01M10/4257 ,  H01M6/181 ,  H01M8/02 ,  H01M8/04 ,  H01M8/1018 ,  H01M8/1065 ,  H01M10/4264 ,  H01M10/48 ,  H01M2300/0082

Abstract: A membrane electrode assembly consists of a polymer electrolyte membrane (100) with an electrode on each side. The polymer electrolyte membrane has an integral sensor (115) disposed on the surface. The sensor monitors the physical, thermal, chemical or electrical state of the membrane electrode assembly. Information obtained from the sensor is used to identify a defective membrane electrode assembly, and the operation of the fuel cell is altered based on the identified defective membrane electrode assembly.

Abstract translation: 膜电极组件由每侧具有电极的聚合物电解质膜（100）组成。 聚合物电解质膜具有设置在表面上的整体传感器（115）。 传感器监测膜电极组件的物理，热，化学或电气状态。 使用从传感器获得的信息来识别有缺陷的膜电极组件，并且基于所识别的有缺陷的膜电极组件改变燃料电池的操作。

公开(公告)号：US5933765A

公开(公告)日：1999-08-03

申请号：US727330

申请日：1996-10-08

Applicant: Mark D. Newton ,  Steven D. Pratt ,  Sivakumar Muthuswamy ,  Kimberly A. Williams ,  Thomas J. Swirbel ,  James Lynn Davis ,  Lara J. Martin ,  Robert J. Mulligan ,  Kevin J. Pieper ,  Brian H. Lee ,  Roger K. Callanan

Inventor： Mark D. Newton ,  Steven D. Pratt ,  Sivakumar Muthuswamy ,  Kimberly A. Williams ,  Thomas J. Swirbel ,  James Lynn Davis ,  Lara J. Martin ,  Robert J. Mulligan ,  Kevin J. Pieper ,  Brian H. Lee ,  Roger K. Callanan

IPC: H04B1/38

CPC classification number: H04M1/0202 ,  H04M1/18 ,  H04B1/3827

Abstract: A communication device is designed to contain the lowest possible level of toxic or hazardous materials, so that when it is eventually disposed of, it will not harm the environment and can be safely recycled. Each component A.sub.1, A.sub.2, . . . , A.sub.n in the communication device has a calculated Component Toxicity Index value. A Product Toxicity Index for the entire communication device is calculated by summing the individual Component Toxicity Index values. The desired outcome is a communication device having a Product Toxicity Index less than or equal to 100. The resulting communication device is referred to as "environmentally friendly". The communication device may be a two-way radio (10), and some of the components are a radio transmitter (12), a radio receiver (14), an antenna (16), an amplifier (18), a battery (20) and a housing (22).

Abstract translation: 通信设备被设计为包含最低可能级别的有毒或有害物质，以便在最终被处置时不会对环境造成伤害并可以安全回收。 每个组件A1，A2，。 。 。 通信设备中的An具有计算出的组分毒性指数值。 通过对各个组分毒性指数值求和来计算整个通信设备的产品毒性指数。 期望的结果是具有小于或等于100的产品毒性指数的通信设备。所得到的通信设备被称为“环境友好”。 通信设备可以是双向无线电（10），并且一些组件是无线电发射机（12），无线电接收机（14），天线（16），放大器（18），电池（20） ）和壳体（22）。

公开(公告)号：US06926990B2

公开(公告)日：2005-08-09

申请号：US10231828

申请日：2002-08-29

Applicant: Ronald J. Kelley ,  Steven D. Pratt ,  Sivakumar Muthuswamy ,  Robert W. Pennisi

Inventor： Ronald J. Kelley ,  Steven D. Pratt ,  Sivakumar Muthuswamy ,  Robert W. Pennisi

IPC: E01C5/00 ,  H01M20060101 ,  H01M4/86 ,  H01M4/88 ,  H01M4/90 ,  H01M4/92 ,  H01M8/10

CPC classification number: H01M4/8652 ,  H01M4/8605 ,  H01M4/886 ,  H01M4/92 ,  H01M4/926 ,  H01M8/1007

Abstract: A fuel cell device has a composite particle electrode (200) formed using particles (210) having a combination of ion conductor material, electron conductor material, and catalyst material. Each composite particle (210) is preferably formed to have a substantially spherical outer layer (480) of ion conductor material (481) with conductive and catalyst particles (482, 484) are dispersed throughout the outer layer (480). An array of composite particles (210) is layered in a substantially structured or ordered manner on a membrane support structure (220) to form the fuel cell electrode. A fuel cell electrode so formed has interstitial gaps between the composite particles that result in a structure permeable to oxygen and other fluids.

Abstract translation: 燃料电池装置具有使用具有离子导体材料，电子导体材料和催化剂材料的组合的粒子（210）形成的复合粒子电极（200）。 每个复合颗粒（210）优选形成为具有离子导体材料（481）的基本上球形的外层（480），其中导电和催化剂颗粒（482,484）分散在整个外层（480）中。 复合颗粒（210）的阵列以基本上结构化或有序的方式层叠在膜支撑结构（220）上以形成燃料电池电极。 如此形成的燃料电池电极在复合颗粒之间具有间隙，导致可渗透氧气和其它流体的结构。

公开(公告)号：US06699611B2

公开(公告)日：2004-03-02

申请号：US09867015

申请日：2001-05-29

Applicant: Gene Kim ,  Ronald J. Kelley ,  Steven D. Pratt

Inventor： Gene Kim ,  Ronald J. Kelley ,  Steven D. Pratt

IPC: H01M804

CPC classification number: H01M8/0239 ,  H01M8/04291 ,  H01M8/1004 ,  H01M8/1023 ,  H01M8/1044 ,  H01M8/1088 ,  H01M2300/0082 ,  Y02P70/56

Abstract: A thermo-responsive polymer is incorporated into a fuel cell (50) in order to maintain optimum hydration of the polymer electrolyte membrane. The thermo-responsive polymer (52) is situated proximate to the membrane electrode assembly (54) such that fuel or oxidant gas passes (56) through the thermo-responsive polymer to the membrane electrode assembly. The thermo-responsive polymer swells or shrinks in response to changes in the operating temperature of the membrane electrode assembly, altering the flow rate of the fuel or oxidant gas passing through the thermo-responsive polymer.

Abstract translation: 为了保持聚合物电解质膜的最佳水合，将热响应聚合物引入到燃料电池（50）中。 热响应聚合物（52）位于膜电极组件（54）附近，使得燃料或氧化剂气体（56）通过热响应聚合物到达膜电极组件。 热响应聚合物响应于膜电极组件的操作温度的变化而膨胀或收缩，改变了通过热响应聚合物的燃料或氧化剂气体的流速。

公开(公告)号：US06586124B2

公开(公告)日：2003-07-01

申请号：US09817336

申请日：2001-03-26

Applicant: Ronald J. Kelley ,  Steven D. Pratt ,  Sivakumar Muthuswamy ,  Robert W. Pennisi

Inventor： Ronald J. Kelley ,  Steven D. Pratt ,  Sivakumar Muthuswamy ,  Robert W. Pennisi

IPC: H01M804

CPC classification number: H01M8/04208 ,  H01M8/04201 ,  H01M8/04216 ,  H01M8/0432 ,  H01M8/04753

Abstract: An apparatus and method for temperature regulation of a fuel cell using differential heat capacity of the fuel storage media is disclosed. The method of regulating the temperature involves measuring the temperature of one or more fuel cells, comparing the temperature against target values, selecting a control method from a set of available control methods based on the result of comparison and using that control method to initiate and control a regulation cycle, and actuating a flow control means using the selected control method to alter the flow of fuel between one or more fuel storage containers, each containing fuel storage media which exhibit different enthalpies of formation and dissociation. The regulation process starts with measuring temperature (110) of a fuel cell system (100). The measured temperature is then compared (120) to a predetermined set of ideal target values designed to provide peak fuel cell performance. Following the comparison step, a control method (130) is selected from a list of available control methods. The control method has the necessary parameters and logic to define an fuel flow initiation process (140) which in turn actuates a flow control means (150). Actuation of the flow control means changes the temperature of the one or more fuel cells and alters its operating parameters (160).

公开(公告)号：US06584825B2

公开(公告)日：2003-07-01

申请号：US09928607

申请日：2001-08-13

Applicant: Steven D. Pratt ,  Sivakumar Muthuswamy ,  Ronald J. Kelley ,  Robert W. Pennisi

Inventor： Steven D. Pratt ,  Sivakumar Muthuswamy ,  Ronald J. Kelley ,  Robert W. Pennisi

IPC: G01N1910

CPC classification number: F17C11/005 ,  C01B3/0005 ,  G01N7/04 ,  Y02E60/321 ,  Y02E60/324

Abstract: An apparatus and method for measuring the quantity of hydrogen in a hydrogen storage vessel of a hydrogen fuel cell using the Pressure, Composition, Temperature (PCT) relationship of the storage media is disclosed. The method of measuring the quantity of hydrogen involves, measuring the temperature 310 of the hydrogen storage media at one or more points on the hydrogen storage vessel 300, measuring the mechanical strain 320 at one or more points on the hydrogen storage vessel, computing the pressure 330 inside the vessel based on the strain measurements, referring to a lookup table 340 or an equation representing the discharge PCT curve for the particular composition of the hydrogen storage media at the measured temperature and computing the hydrogen concentration at the measured pressure. The changes in temperature and pressure during hydrogen absorption-desorption which are characteristic of hydride storage media air is used to measure the hydrogen concentration in the storage vessel and the hydrogen to metal hydride.

Abstract translation: 公开了一种使用存储介质的压力，组成，温度（PCT）关系测量氢燃料电池的储氢容器中氢的量的装置和方法。 测量氢气量的方法包括：在储氢容器300上的一个或多个点处测量储氢介质的温度310，在储氢容器的一个或多个点测量机械应变320，计算压力 330，根据应变测量，参考查找表340或表示在测量的温度下储氢介质的特定组成的排放PCT曲线的方程，并计算测量压力下的氢浓度。 氢吸收 - 解吸附的温度和压力变化是氢化物储存介质空气的特征，用于测量储存容器中的氢气浓度和金属氢化物的氢浓度。

公开(公告)号：US06176953B1

公开(公告)日：2001-01-23

申请号：US09309978

申请日：1999-05-11

Applicant: Bobby Dean Landreth ,  Steven D. Pratt ,  Sivakumar Muthuswamy ,  Ronald J. Kelley

Inventor： Bobby Dean Landreth ,  Steven D. Pratt ,  Sivakumar Muthuswamy ,  Ronald J. Kelley

IPC: B32B3118

CPC classification number: B29C65/08 ,  B29C66/1122 ,  B29C66/30223 ,  B29C66/5412 ,  B29C66/71 ,  B29C66/712 ,  B29C66/723 ,  B29C66/73921 ,  B29C66/8322 ,  B29C2793/00 ,  B29C2793/0009 ,  B29L2007/008 ,  B29L2012/00 ,  B29L2031/755 ,  H01M8/0273 ,  H01M8/0284 ,  H01M8/0286 ,  H01M2008/1095 ,  B29K2025/06 ,  B29K2055/02 ,  B29K2069/00 ,  B29K2071/12

Abstract: An ultrasonically welded joint is made by placing a thermoplastic film (5) between two thermoplastic members (10, 20). The two thermoplastic members each have a mating part of a complex joint. One part of the joint, known as the shear joint (40), serves to shear away part (6) of the film when the two members come together, and another section of the same joint, known as the mash joint (30), serves to bond the film and the two members all together during the ultrasonic welding process.

Abstract translation: 通过将热塑性膜（5）放置在两个热塑性构件（10,20）之间来制造超声波焊接接头。 两个热塑性构件各自具有复合接头的配合部分。 被称为剪切接头（40）的接头的一部分用于当两个构件接合在一起时剪切掉膜的部分（6），并且将称为糊状接头（30）的相同接头的另一部分， 用于在超声波焊接过程中将薄膜和两个部件全部结合在一起。

公开(公告)号：US5937265A

公开(公告)日：1999-08-10

申请号：US840003

申请日：1997-04-24

Applicant: Steven D. Pratt ,  Sivakumar Muthuswamy ,  Robert W. Pennisi

Inventor： Steven D. Pratt ,  Sivakumar Muthuswamy ,  Robert W. Pennisi

IPC: B22F3/12 ,  B22F5/00 ,  B29C33/38 ,  B29C33/40 ,  B29C43/10 ,  B29C67/00 ,  B22F3/14

CPC classification number: B22F3/1258 ,  B22F5/007 ,  B29C33/3842 ,  B29C33/405 ,  B22F2998/10 ,  B22F2999/00 ,  B29C43/10 ,  B29C67/0051 ,  Y02P10/292

Abstract: A rapid method for fabricating a tooling die insert (71) is disclosed. A set of master parts (31, 32) in the shape of the insert is formed using stereolithography or other rapid prototyping techniques (106). The master parts are assembled and a flexible material is molded (109, 56, 57) in them to form a flexible mold (111, 61). The flexible mold is then filled (115) with metal powder and the powder is cold isostatically pressed (117) to solidify it and form a green part. The "green part" is then hot isostatically pressed (118) to form the densifyed tool.

Abstract translation: 公开了一种制造模具插片（71）的快速方法。 使用立体光刻技术或其他快速成型技术（106）形成插入件形状的一组主要部件（31,32）。 主部件被组装并且在其中模制柔性材料（109,56,57）以形成柔性模具（111,61）。 然后用金属粉末填充柔性模具（115），并将粉末冷静压（117）使其固化并形成绿色部分。 然后，将“绿色部分”热等静压（118）以形成致密工具。