公开(公告)号：US4913178A

公开(公告)日：1990-04-03

申请号：US235838

申请日：1988-08-18

Applicant: David E. Fowler

Inventor： David E. Fowler

IPC: C10G21/00 ,  H01F27/14

CPC classification number: H01F27/14 ,  C10G21/006 ,  Y10S210/909

Abstract: Disclosed is a process for removing polychlorinated biphenyls from electrical apparatus, particularly transformers, to achieve concentration levels of 50 ppm or less as required by the EPA. A dielectric fluid having a relatively low boiling point as compared to polychlorinated biphenyls and other contaminants and in which PCB's are soluble is selected. There is an external cooling loop through which the dielectric fluid is circulated maintaining the temperature and pressure of the transformer within its design limits. There is an external distillation loop where the liquid removed from the transformer is heated to boiling point of the selected dielectric fluid thereby vaporizing the dielectric fluid and leaving the polychlorinated biphenyls in liquid phase in the distillation vessel. The dielectric fluid vapor is then condensed and returned to solubilize remaining PCB's in the transformer.

Abstract translation: 公开了从电气设备，特别是变压器除去多氯联苯的方法，以达到EPA要求的浓度水平为50ppm或更低。 选择与多氯联苯和其他污染物相比具有相对低沸点并且其中PCB可溶的介电流体。 存在外部冷却回路，电介质流体通过该冷却回路保持变压器的温度和压力在其设计限制内。 存在外部蒸馏回路，其中从变压器去除的液体被加热到所选择的介电流体的沸点，从而蒸发介电流体并使多氯联苯在蒸馏容器中保持液相。 然后将介电流体蒸气冷凝并返回以增溶变压器中剩余的PCB。

公开(公告)号：US5554520A

公开(公告)日：1996-09-10

申请号：US26051

申请日：1993-03-05

Applicant: David E. Fowler ,  Philip G. Horton ,  Arie Ben-Bassat

Inventor： David E. Fowler ,  Philip G. Horton ,  Arie Ben-Bassat

IPC: C12M1/02 ,  C12N9/04 ,  C12N9/24 ,  C12N9/88 ,  C12N15/52 ,  C12P7/06 ,  C12P7/10 ,  G06T1/00 ,  C12P7/14

CPC classification number: G06T1/00 ,  C12N15/52 ,  C12N9/0006 ,  C12N9/2437 ,  C12N9/248 ,  C12N9/88 ,  C12P7/065 ,  C12P7/10 ,  C12Y101/01001 ,  C12Y302/01004 ,  C12Y302/01037 ,  C12Y401/01001 ,  E05Y2900/132 ,  Y02E50/16 ,  Y02E50/17

Abstract: Novel plasmids comprising genes which code for the alcohol dehydrogenase and pyruvate decarboxylase are have been transformed with genes coding for alcohol dehydrogenase and pyruvate. By virtue of their transformation with these genes, the recombinant hosts are capable of producing significant amounts of ethanol as a fermentation product. Also disclosed are methods for increasing the growth of recombinant hosts and methods for reducing the accumulation of undesirable metabolic products in the growth medium of these hosts. Also disclosed are recombinant host capable of producing significant amounts of ethanol as a fermentation product of oligosaccharides and plasmids comprising genes encoding polysaccharases, in addition to the genes described above which code for the alcohol dehydrogenase and pyruvate decarboxylase. Further, methods are described for producing ethanol from oligomeric feedstock using the recombinant hosts described above. Also provided is a method for enhancing the production of functional proteins in a recombinant host comprising overexpressing an adhB gene in the host. Further provided are process designs for fermenting oligosaccharide-containing biomass to ethanol.

Abstract translation: 已经用编码醇脱氢酶和丙酮酸的基因转化了包含编码醇脱氢酶和丙酮酸脱羧酶的基因的新型质粒。 由于它们与这些基因的转化，重组宿主能够产生显着量的乙醇作为发酵产物。 还公开了增加重组宿主生长的方法和减少这些宿主生长培养基中不需要的代谢产物积累的方法。 还公开了能够产生显着量的乙醇作为寡糖的发酵产物的重组宿主和包含编码多糖酶的基因的质粒，除了上述描述了醇脱氢酶和丙酮酸脱羧酶的基因之外。 此外，描述了使用上述重组宿主从低聚原料生产乙醇的方法。 还提供了用于增强重组宿主中功能蛋白质生产的方法，其包括在宿主中过表达adhB基因。 进一步提供了将含有寡糖的生物质发酵成乙醇的方法设计。

公开(公告)号：US4865061A

公开(公告)日：1989-09-12

申请号：US515995

申请日：1983-07-22

Applicant: David E. Fowler ,  Charles R. Witt

Inventor： David E. Fowler ,  Charles R. Witt

IPC: B08B3/08 ,  B08B3/00 ,  B08B15/02 ,  G21F9/00

CPC classification number: G21F9/001 ,  B08B15/026 ,  B08B3/006

Abstract: Disclosed is a self-contained, portable apparatus for cleaning chemical and/or radioactively contaminated articles. A cleaning chamber is provided where contaminated articles are placed. Solvent from a solvent reservoir is sprayed onto the contaminated articles to dissolve the chemical contaminants and to dislodge the radioactive particulates. The solvent and contaminants drain through a short vertical duct connecting the cleaning chamber to the solvent reservoir. There is a cooling means present in the short vertical duct which serves to condense the solvent vaporized during the cleaning operation. A filter means is provided to filter particulate contaminants from the solvent before the solvent is delivered from the solvent reservoir to the cleaning chamber. A high efficiency particulate air filter and an adsorber are connected in series such that the initial atmosphere contained within the cleaning chamber is vented to atmosphere through the high efficiency particulate air filter in the absorber during the initial increase in pressure within the cleaning chamber when spraying of the solvent is commenced. As the cooling means condenses the solvent vapor, the pressure within the apparatus is reduced to subatmospheric pressure thus preventing the possibility of leak of contamination from the apparatus into the atmosphere.

Abstract translation: 公开了一种用于清洁化学和/或放射性污染物品的独立便携式设备。 设置有污染物品的清洁室。 将溶剂储存器的溶剂喷洒到污染的物品上，以溶解化学污染物并排出放射性颗粒物。 溶剂和污染物通过将清洁室连接到溶剂容器的短垂直管道排出。 存在于短垂直管道中的冷却装置，其用于冷凝在清洁操作期间蒸发的溶剂。 提供过滤器装置以在将溶剂从溶剂储存器输送到清洁室之前从溶剂中过滤颗粒污染物。 高效颗粒空气过滤器和吸附器串联连接，使得包含在清洁室内的初始气氛通过吸收器内的高效颗粒空气过滤器在清洁室内的最初压力升高期间排放到大气中 溶剂开始。 当冷却装置冷凝溶剂蒸汽时，装置内的压力降低到低于大气压，从而防止污染物从设备泄漏到大气中的可能性。

公开(公告)号：US07355814B1

公开(公告)日：2008-04-08

申请号：US11219003

申请日：2005-09-01

Applicant: David E. Fowler ,  Erhard Schreck

Inventor： David E. Fowler ,  Erhard Schreck

IPC: G11B5/41

CPC classification number: G11B5/41 ,  G11B21/22

Abstract: The present invention is directed to a load/unload disk drive that includes: a rotational arm engaging a slider; a magnetic storage disk, wherein the magnetic head in the slider reads data from and/or writes data to a data zone of the magnetic storage disk; and a ramp positioned next to the magnetic storage disk. The magnetic storage disk includes a slider cleaning zone having a roughness greater than a roughness of the data zone. The slider is periodically contacted with the slider cleaning zone to remove particles collected on the slider.

Abstract translation: 本发明涉及一种装载/卸载盘驱动器，其包括：与滑块接合的旋转臂; 磁存储盘，其中滑块中的磁头从数据区读取数据和/或写数据到磁存储盘的数据区; 以及位于磁存储盘旁边的斜坡。 磁存储盘包括具有大于数据区的粗糙度的粗糙度的滑块清洁区。 滑块周期性地与滑块清洁区接触以去除在滑块上收集的颗粒。

公开(公告)号：US5333855A

公开(公告)日：1994-08-02

申请号：US916514

申请日：1992-07-20

Applicant: Connie J. Silin ,  David E. Fowler

Inventor： Connie J. Silin ,  David E. Fowler

IPC: A63B63/00 ,  A63B69/00 ,  A63B69/40

CPC classification number: A63B63/00 ,  A63B69/0002 ,  A63B2024/0043

Abstract: A baseball pitching analyzer having a housing in the form of a cube with a forward face including an opening through which the baseball may pass. The periphery of this opening is angled inward to provide a funnel arrangement such that balls striking the front face will be deflected through the opening. Located within the housing is an open rectangular frame mounting a plurality of light emitters and associated light detectors, arranged to form an array or grid of intersecting light beams. The frame includes lenses spaced from the emitters and detectors to maintain a well collimated light beam. The emitters and detectors are alternated about the periphery of the frame, such that light emitters are located adjacent each of the light detectors. The associated beam for each detector is therefore less likely to impinge upon another detector, reducing crosstalk and permitting a closer grid spacing. The control system includes a timer which is started upon the blocking of a light beam and stopped upon the unblocking of a light beam. This time is used with the known diameter of a baseball to calculate the velocity of the pitch. Balls received within the device are conveyed to an elevated dispensing opening and passed out of the device, such that they may be easily received within a storage bag or pitchback device. The results of the location and speed of the pitch may be displayed by a printer and/or display unit.

Abstract translation: 一种棒球俯仰分析仪，其具有呈立方体形状的壳体，其具有包括棒球可以穿过的开口的前面。 该开口的周边向内倾斜以提供漏斗布置，使得撞击前表面的球将偏转穿过开口。 位于壳体内的是安装多个发光体和相关联的光检测器的开放矩形框架，布置成形成相交光束的阵列或栅格。 框架包括与发射器和检测器间隔开的透镜，以保持准直的光束。 发射器和检测器围绕框架的周边交替，使得发光体位于每个光检测器附近。 因此，每个检测器的相关联的光束不太可能撞击另一个检测器，减少串扰并允许更近的栅格间隔。 控制系统包括定时器，该定时器在光束的阻挡时起动，并且在光束的解除阻挡时停止。 这个时间与棒球的已知直径一起使用，以计算球场的速度。 容纳在装置内的球被输送到升高的分配开口并从装置中流出，使得它们可以容易地容纳在储存袋或后背装置内。 音高的位置和速度的结果可以由打印机和/或显示单元显示。

公开(公告)号：US4797128A

公开(公告)日：1989-01-10

申请号：US679641

申请日：1984-12-10

Applicant: David E. Fowler

Inventor： David E. Fowler

IPC: A61L2/18 ,  A62D3/00 ,  D06L1/08 ,  D06L1/10 ,  G21F9/00 ,  B08B3/00

CPC classification number: G21F9/001 ,  A61L2/18 ,  D06L1/08 ,  D06L1/10

Abstract: Garments contaminated with radioactive, toxin, biological and/or chemical contaminants are deposited in a cleaning drum and the drum is agitated during a wash cycle. A dry cleaning solvent is added to the drum during the initial wash cycle and then drained to a distillation means. Within the distillation means, there is a neutralizing agent which deactivates the biological and toxin contaminants and chemically breaks down the chemical contaminants removed with the dry cleaning solvent from the cleaning drum. Dry cleaning solvent is then continuously added to the drum during the secondary wash cycle and continuously removed from the drum. After the dry cleaning solvent is removed from the drum, and before it is pumped back to the drum, the dry cleaning solvent is filtered to remove remaining trace particulate contaminants. The dry cleaning solvent is also passed through an absorber where remaining trace chemical contaminants dissolves in the dry cleaning solvent are removed. The garments are then rinsed by circulating contaminant free dry cleaning solvent through the drum. After rinsing, the garments are dried by circulating hot, unsaturated dry cleaning solvent vapor through the drum.

Abstract translation: 被放射性，毒素，生物和/或化学污染物污染的衣物沉积在清洁桶中，并且在洗涤循环期间搅拌鼓。 在初始洗涤循环期间，将干洗溶剂加入滚筒中，然后排干至蒸馏装置。 在蒸馏装置内，存在一种中和剂，其使生物和毒素污染物失活，并从清洁鼓中化学分解用干洗溶剂除去的化学污染物。 然后在二次洗涤循环期间将干洗溶剂连续加入到滚筒中，并从滚筒中连续取出。 在从滚筒中取出干洗溶剂之后，在将其泵回到滚筒之前，将干洗溶剂过滤以除去剩余的痕量微量污染物。 干洗溶剂也通过吸收器，其中残留的痕量化学污染物溶解在干洗溶剂中。 然后将衣物通过循环的无污染的干洗溶剂循环通过滚筒进行漂洗。 冲洗后，通过将热的不饱和干燥溶剂蒸气循环通过鼓进行干燥。

公开(公告)号：US4443269A

公开(公告)日：1984-04-17

申请号：US228971

申请日：1981-01-22

Applicant: Joseph A. Capella ,  David E. Fowler

Inventor： Joseph A. Capella ,  David E. Fowler

IPC: B05B15/02 ,  B08B3/00 ,  B08B3/02 ,  B08B15/00

CPC classification number: B08B15/026 ,  B05B15/0258 ,  B08B3/006 ,  Y10T74/20612

Abstract: Disclosed is a system and method for cleaning radioactively contaminated articles, including tools and like items of hardware. The system includes a cleaning chamber for receiving and sealing therein the contaminated articles, a high pressure spray gun disposed within the cleaning chamber for spraying the contaminated articles with a clean solvent to dislodge and dissolve the contaminants, and a system for decontaminating the solvent for reuse. The cleaning chamber includes a drain having the capacity to remove contaminated solvent at a rate at least as great as that at which the solvent is sprayed into the chamber, such that substantially no contaminated solvent collects in the cleaning chamber.

Abstract translation: 公开了一种用于清洁放射性污染物品的系统和方法，包括工具和类似的硬件。 该系统包括用于在其中接收和密封污染物品的清洁室，设置在清洁室内的高压喷枪，用于用干净的溶剂喷洒污染的物品以去除和溶解污染物;以及用于净化溶剂以重新利用的系统 。 清洁室包括具有以与将溶剂喷射到室中的至少一样大的速率去除污染溶剂的能力的排水管，使得基本上没有污染的溶剂聚集在清洁室中。

公开(公告)号：US07796356B1

公开(公告)日：2010-09-14

申请号：US12435280

申请日：2009-05-04

Applicant: David E. Fowler ,  Sateeshchandra S. Bajikar

Inventor： David E. Fowler ,  Sateeshchandra S. Bajikar

IPC: G11B21/02 ,  G11B19/02 ,  G11B5/02

CPC classification number: G11B5/3133 ,  G11B5/3136 ,  G11B5/6005 ,  G11B5/6064 ,  G11B5/607 ,  G11B5/6076

Abstract: A method and system for providing a disk drive is described. The disk drive includes media such as one or more disks, a slider and a head residing on the slider. The head has an air-bearing surface (ABS) and includes a touchdown sensor proximate to the ABS. The touchdown sensor is capable of detecting a temperature change of 0.1 degree Celsius or, in some embodiments, smaller. The disk drive also includes touchdown sensor control circuitry coupled with the touchdown sensor. The touchdown sensor control circuitry drives a current through the touchdown sensor and converts a signal from the touchdown sensor into an indication of whether touchdown has occurred.

Abstract translation: 描述了一种用于提供磁盘驱动器的方法和系统。 磁盘驱动器包括诸如一个或多个磁盘，滑块和位于滑块上的磁头的介质。 头部具有空气轴承表面（ABS），并且包括靠近ABS的触地传感器。 触地传感器能够检测0.1摄氏度的温度变化，或者在一些实施例中更小。 磁盘驱动器还包括与触地传感器耦合的触地传感器控制电路。 触地传感器控制电路驱动通过触地传感器的电流，并将来自触地传感器的信号转换成是否发生触地的指示。

公开(公告)号：US06760191B1

公开(公告)日：2004-07-06

申请号：US10067566

申请日：2002-02-04

Applicant: Wentao Yan ,  David E. Fowler

Inventor： Wentao Yan ,  David E. Fowler

IPC: G11B1702

CPC classification number: G11B5/3136 ,  G11B5/10 ,  G11B5/105 ,  G11B5/3103 ,  G11B5/40 ,  G11B5/6005 ,  G11B33/1406 ,  G11B2005/001

Abstract: A head suspension assembly for a disk drive that inhibits thermal pole tip protrusion includes a slider assembly having a slider exterior surface including a trailing surface, a slider interior region that is defined by the slider exterior surface, and a write head having an electrically coupled write coil positioned within the slider interior region. The write coil generates heat during write operations of the disk drive. The slider assembly also includes a heat dissipater positioned substantially within the slider interior region. The heat dissipater is electrically isolated from the write coil, and has a thermal conductivity of at least approximately 50 W/mK.

Abstract translation: 用于禁止热极尖突起的盘驱动器的头悬架组件包括滑块组件，滑块组件具有包括后表面的滑动器外表面，由滑块外表面限定的滑动器内部区域，以及具有电耦合写入 线圈位于滑块内部区域内。 写入线圈在磁盘驱动器的写入操作期间产生热量。 滑块组件还包括基本上位于滑块内部区域内的散热器。 散热器与写入线圈电隔离，并且具有至少约50W / mK的热导率。

公开(公告)号：US06654205B1

公开(公告)日：2003-11-25

申请号：US09430878

申请日：1999-11-01

Applicant: Matthew A. O'Hara ,  David E. Fowler

Inventor： Matthew A. O'Hara ,  David E. Fowler

IPC: G11B1732

CPC classification number: G11B5/6005 ,  G11B5/4826

Abstract: Sliders having air bearing surfaces are disclosed for use with magnetic recording and reading heads in a magnetic disk drive assembly to reduce the pressure gradients resulting from the flow of air between the slider and the spinning disk. To relieve such pressure gradient, the bottom surface of the air bearing surface at or near the trailing edge includes one or more recesses, which may be one or more steps, inclined ramps, curves or other configurations. Other surfaces of the slider may also include recesses to relieve these pressures. The sliders having air bearing surfaces may be attached to, or integral with, a magnetic recording or reading head in a magnetic disk drive assembly. A method of reducing the formation of pressure gradients is also disclosed whereby air flow between the disk and the head creates a pressure greater than atmospheric, at least a part of which is released through a recess on the air bearing surface of the slider.

Abstract translation: 具有空气轴承表面的滑块被公开用于磁盘驱动组件中的磁记录和读取头以减少由滑块和旋转盘之间的空气流引起的压力梯度。 为了减轻这种压力梯度，在后缘处或附近的空气轴承表面的底表面包括一个或多个凹槽，其可以是一个或多个台阶，倾斜坡道，曲线或其它构造。 滑块的其它表面也可以包括凹槽以减轻这些压力。 具有空气轴承表面的滑块可以附接到磁盘驱动器组件中的磁记录或读取头或与其一体。 还公开了一种降低压力梯度形成的方法，其中盘和头之间的空气流动产生大于大气压力的压力，其中至少一部分通过滑块的空气轴承表面上的凹槽释放。