公开(公告)号：US4992159A

公开(公告)日：1991-02-12

申请号：US285436

申请日：1988-12-16

申请人： Ian A. Cody ,  David L. Brown

发明人： Ian A. Cody ,  David L. Brown

IPC分类号： B01J23/42 ,  B01J27/12 ,  B01J27/13 ,  C10G65/04 ,  C10G65/08 ,  C10G67/04

CPC分类号： C10G65/08 ,  C10G65/043 ,  C10G67/04

摘要： Waxy distillates, or raffinates containing from as little as 10% wax but more typically about 30% wax or more are upgraded by a process comprising the steps of hydrotreating the waxy oil under conditions which convert less than 20% of the feed into products boiling lower than the feed to reduce the sulfur and nitrogen content of the oil followed by hydroisomerizing the hydrotreated waxy oil to reduce the wax content and increase the viscosity index. This oil having a waxy content of less than 30%, preferably less than 25%, can now be more easily dewaxed using conventional solvent dewaxing procedures. The advantage of the present process resides in the increased yield and/or stability of oil as compared to other upgrading, dewaxing processes which convert wax to light products. The isomerization catalyst is preferably a low fluorine content catalyst, more preferably a noble metal on 0.1 to less than 2 wt % fluorine on alumina catalyst, most preferably a noble Group VIII metal (e.g. Pt or Pd) on low fluorine content (less than 2 wt % fluorine) on small particle size alumina (less than 1/16 inch diameter) catalyst. The most preferred alumina support is a 1/20 inch trilobe.

公开(公告)号：US4492362A

公开(公告)日：1985-01-08

申请号：US444565

申请日：1982-11-26

申请人： Frank Garcia, Jr. ,  David L. Brown

发明人： Frank Garcia, Jr. ,  David L. Brown

IPC分类号： B23C3/05 ,  B23C3/34 ,  E21B34/02 ,  F16K27/06 ,  F16K3/00

CPC分类号： B23C3/34 ,  B23C3/05 ,  E21B34/02 ,  F16K27/06 ,  Y10S251/90

摘要： A valve seat (28) having a generally saddle-shaped, eccentric surface (52); a groove (50) of constant depth and width formed in the eccentric surface, having sidewalls (70) perpendicular to the eccentric surface and a base (72) parallel to the eccentric surface; and a flexible O-ring (54) retained by friction within the groove. The groove sidewalls and base have a surface finish in the range of about 32 to 125, which provides sufficient smoothness to retain the O-ring in the required non-planar shape.The valve seat groove (50) can be produced according to the disclosed method, which is preferably implemented in a numerically controlled four-axis horizontal milling tool system. The valve seat part (100) is mounted in a fixture (102) on a rotary table (104) such that the part axis (56) is aligned with the longitudinal axis (Z) of the tool (106). Once the initial penetration position and depth of the tool (106) is established on the eccentric surface (52a) of the part (100), the only required machine movements are table rotation (104) and tool vertical axis movement (Y).

公开(公告)号：US4447342A

公开(公告)日：1984-05-08

申请号：US369764

申请日：1982-04-19

申请人： John K. Borchardt ,  David L. Brown

发明人： John K. Borchardt ,  David L. Brown

IPC分类号： C09K8/588 ,  C09K8/60 ,  E21B43/22 ,  E21B43/12 ,  E21B43/25

CPC分类号： C09K8/588 ,  C09K8/608 ,  Y10S507/936

摘要： A method of preventing permeability damage due to clay swelling, disintegration and migration in subterranean formations producing oil and gas, where such formations are to be the subject of enhanced oil recovery techniques using anionic or caustic flood chemicals. Prior to the use of such enhanced oil recovery techniques, a cationic organic polymer capable of stabilizing clays is introduced into an oil reservoir treatment area followed by introduction of a sufficient amount of a non-anionic aqueous spacer fluid to cause the cationic organic polymer to reorient itself on the reservoir clays in a substantially monomolecular layer and manner such that it will continue to stabilize the reservoir clays but will not substantially react with the anionic or caustic flood chemicals to form permeability damaging precipitates or to decompose thereby reducing its clay stabilization effectiveness.

摘要翻译： 防止由于粘土膨胀，在产生油气的地下层中的分解和迁移而引起的渗透性破坏的方法，其中这些地层将成为使用阴离子或苛性洪水化学品的增强采油技术的对象。 在使用这种增强的油回收技术之前，将能够稳定粘土的阳离子有机聚合物引入储油处理区域，然后引入足够量的非阴离子水性间隔液以使阳离子有机聚合物重新取向 本身在储层上以基本上单分子层的粘土和方式使得其将继续稳定储层粘土，但是基本上不会与阴离子或苛性洪水化学品反应形成渗透性破坏沉淀物或分解，从而降低其粘土稳定效果。

公开(公告)号：US3946791A

公开(公告)日：1976-03-30

申请号：US507815

申请日：1974-09-20

申请人： David L. Brown

发明人： David L. Brown

IPC分类号： A47H5/032 ,  A47H15/04

CPC分类号： A47H15/04 ,  A47H5/032 ,  Y10T16/354

摘要： A one way draw curtain rod assembly providing either a left or right hand draw cord location. A pulley assembly on the curtain rod is invertible into either of two positions to enable the relocation of the draw cords with respect to the curtain on the rod. Triangularly disposed pulleys serve to rotatably support the draw cords with the pulley-cord relationship being changed upon curtain rod inversion so as to function in a like manner in either position. The pulley assembly is affixed to the larger telescopic rod member to partake of the added strength of said member. A master carrier includes a detachable component removable upon curtain rod inversion and reattachable to locate a curtain bar to receive the outer segment of the curtain.

公开(公告)号：US09793673B2

公开(公告)日：2017-10-17

申请号：US13487075

申请日：2012-06-01

申请人： Yung-Ho Chuang ,  J. Joseph Armstrong ,  Justin Dianhuan Liou ,  Vladimir Dribinski ,  David L. Brown

发明人： Yung-Ho Chuang ,  J. Joseph Armstrong ,  Justin Dianhuan Liou ,  Vladimir Dribinski ,  David L. Brown

IPC分类号： G02B5/30 ,  G02B27/28 ,  H01S3/05 ,  H01S3/083 ,  H01S3/00 ,  G01N21/21 ,  G01N21/95 ,  G02B5/08

CPC分类号： H01S3/0057 ,  G01N21/21 ,  G01N21/9501 ,  G01N2201/06113 ,  G01N2201/0683 ,  G01N2201/0697 ,  G02B5/0816 ,  G02B5/3083 ,  G02B27/281 ,  G02B27/283 ,  G02B27/286 ,  H01S3/083

摘要： A pulse multiplier includes a polarizing beam splitter, a wave plate, and a set of mirrors. The polarizing beam splitter receives an input laser pulse. The wave plate receives light from the polarized beam splitter and generates a first set of pulses and a second set of pulses. The first set of pulses has a different polarization than the second set of pulses. The polarizing beam splitter, the wave plate, and the set of mirrors create a ring cavity. The polarizing beam splitter transmits the first set of pulses as an output of the pulse multiplier and reflects the second set of pulses into the ring cavity. This pulse multiplier can inexpensively reduce the peak power per pulse while increasing the number of pulses per second with minimal total power loss.

公开(公告)号：US09113464B2

公开(公告)日：2015-08-18

申请号：US11620600

申请日：2007-01-05

申请人： Fred S. Hirt ,  David L. Brown

发明人： Fred S. Hirt ,  David L. Brown

IPC分类号： H04Q5/22 ,  H04W72/04 ,  H04W52/02 ,  H04W52/50 ,  H04W4/06 ,  H04W8/00 ,  H04W24/00 ,  H04W48/08 ,  H04W56/00

CPC分类号： H04W72/0446 ,  H04W4/06 ,  H04W8/005 ,  H04W12/02 ,  H04W12/06 ,  H04W12/08 ,  H04W24/00 ,  H04W48/08 ,  H04W52/0216 ,  H04W52/50 ,  H04W56/00 ,  Y02D70/144 ,  Y02D70/22 ,  Y02D70/26

摘要： In a wireless network, a cell's transmission power and reception sensitivity may be dynamically adjusted along with those of a client device detected in the cell. Thus, in other words, when a client device is in proximity of a particular reader device, the transmission power levels and reception sensitivities of the reader device and the client device may be adjusted in an effort to require the client device to be “drawn in” towards the reader device to conduct a data transaction between the reader device and the client device.

摘要翻译： 在无线网络中，小区的发射功率和接收灵敏度可以与在小区中检测到的客户端设备的发射功率和接收灵敏度一起动态调整。 因此，换句话说，当客户端设备处于特定的读取器设备附近时，可以调整读取器设备和客户端设备的发送功率电平和接收灵敏度，以便要求客户端设备被“ “朝向读取器设备在读取器设备和客户端设备之间进行数据交易。

公开(公告)号：US20150026480A1

公开(公告)日：2015-01-22

申请号：US14448891

申请日：2014-07-31

申请人： John J. Giobbi ,  David L. Brown ,  Fred S. Hirt

发明人： John J. Giobbi ,  David L. Brown ,  Fred S. Hirt

IPC分类号： G06F21/31 ,  H04L9/32 ,  H04L29/06 ,  G06F21/32 ,  G06F21/34

CPC分类号： G06F21/31 ,  G06F21/32 ,  G06F21/34 ,  G07C9/00087 ,  H04L9/3231 ,  H04L63/0861 ,  H04L2209/56 ,  H04L2209/80

摘要： A system and method provide efficient, secure, and highly reliable authentication for transaction processing and/or access control applications. A personal digital key (PDK) is programmed using a trusted programming device to initialize and/or register the PDK for use. In one embodiment, the initialization and registration processes are administered by a specialized trusted Notary to ensure the processes follow defined security procedures. In a biometric initialization, the programming device acquires a biometric input from a user and writes the biometric data to a tamperproof memory in the PDK. In registration, the Programmer communicates to one or more remote registries to create or update entries associated with the user PDK. Once initialized and registered, the PDK can be used for various levels of secure authentication processes.

摘要翻译： 系统和方法为交易处理和/或访问控制应用提供高效，安全和高度可靠的认证。 使用可信编程设备对个人数字键（PDK）进行编程，以初始化和/或注册PDK以供使用。 在一个实施例中，初始化和注册过程由专门的可信公证人管理，以确保过程遵循定义的安全程序。 在生物识别初始化中，编程设备从用户获取生物特征输入，并将生物特征数据写入PDK中的防篡改存储器。 在注册中，程序员与一个或多个远程注册表通信以创建或更新与用户PDK相关联的条目。 一旦初始化和注册，PDK可以用于各种级别的安全认证过程。

公开(公告)号：US08624971B2

公开(公告)日：2014-01-07

申请号：US12575376

申请日：2009-10-07

申请人： David L. Brown ,  Yung-Ho Chuang

发明人： David L. Brown ,  Yung-Ho Chuang

IPC分类号： H04N7/18

CPC分类号： H04N7/18 ,  G01N21/9501 ,  G01N2021/8887 ,  G01N2021/95676 ,  H04N5/3694 ,  H04N5/372

摘要： An inspection system for inspecting a surface of a wafer/mask/reticle can include a modular array. The modular array can include a plurality of time delay integration (TDI) sensor modules, each TDI sensor module having a TDI sensor and a plurality of localized circuits for driving and processing the TDI sensor. At least one of the localized circuits can control a clock associated with the TDI sensor. At least one light pipe can be used to distribute a source illumination to the plurality of TDI sensor modules. The plurality of TDI sensor modules can be positioned capture a same inspection region or different inspection regions. The plurality of TDI sensor modules can be identical or provide for different integration stages. Spacing of the modules can be arranged to provide 100% coverage of the inspection region in one pass or for fractional coverage requiring two or more passes for complete coverage.

摘要翻译： 用于检查晶片/掩模/掩模版的表面的检查系统可以包括模块阵列。 模块化阵列可以包括多个时间延迟积分（TDI）传感器模块，每个TDI传感器模块具有TDI传感器和用于驱动和处理TDI传感器的多个局部电路。 至少一个局部电路可以控制与TDI传感器相关的时钟。 可以使用至少一个光管来将源照明分配给多个TDI传感器模块。 多个TDI传感器模块可以被定位成捕获相同的检查区域或不同的检查区域。 多个TDI传感器模块可以相同或提供不同的集成阶段。 可以设置模块的间隔，以便在一次通过中提供100％的检查区域覆盖，或者为了完全覆盖而需要两次或更多次通过的分数覆盖。

公开(公告)号：US08457672B2

公开(公告)日：2013-06-04

申请号：US13491417

申请日：2012-06-07

申请人： David L. Brown ,  Fred S. Hirt

发明人： David L. Brown ,  Fred S. Hirt

IPC分类号： H04B7/00 ,  H04J3/06

CPC分类号： H04W72/0446 ,  H04W4/06 ,  H04W8/005 ,  H04W12/02 ,  H04W12/06 ,  H04W12/08 ,  H04W24/00 ,  H04W48/08 ,  H04W52/0216 ,  H04W52/50 ,  H04W56/00 ,  Y02D70/144 ,  Y02D70/22 ,  Y02D70/26

摘要： Wireless client devices within a wireless network exchange data with other wireless devices during particular time slots determined by the network. More particularly, the system generates and wirelessly broadcasts synchronization information to the client devices, where the synchronization information contains individual masks to be applied to bit fields of individual client devices, where said time slots are determined in accordance with the masked bit fields. In such a manner, client devices can be coordinated to communicate with the system in a dynamic real-time tiered manner.

摘要翻译： 在由网络确定的特定时隙期间，无线网络内的无线客户端设备与其他无线设备交换数据。 更具体地，系统生成并向客户端设备无线地广播同步信息，其中同步信息包含要应用于单个客户端设备的位域的单独掩码，其中根据掩码比特字段来确定所述时隙。 以这种方式，可以协调客户端设备以动态实时分层方式与系统通信。

公开(公告)号：US08433919B2

公开(公告)日：2013-04-30

申请号：US11744831

申请日：2007-05-05

申请人： John J. Giobbi ,  David L. Brown ,  Fred S. Hirt

发明人： John J. Giobbi ,  David L. Brown ,  Fred S. Hirt

IPC分类号： H04L29/06

CPC分类号： G06Q20/40145 ,  G06F21/31 ,  G06F21/32 ,  G06F21/34 ,  G06Q20/341 ,  G06Q20/4014 ,  G07C9/00087 ,  G07C2009/00095 ,  G07F7/1008 ,  H04L63/0861 ,  H04W12/06

摘要： A system and method provide efficient, secure, and highly reliable authentication for transaction processing and/or access control applications. A Personal Digital Key stores one or more profiles (e.g., a biometric profile) in a tamper-proof memory that is acquired in a secure trusted process. Biometric profiles comprise a representation of physical or behavioral characteristics that are uniquely associated with an individual that owns and carries the PDK. The PDK wirelessly transmits the biometric profile over a secure wireless transaction to a Reader for use in a biometric authentication process. The Reader compares the received biometric profile to a biometric input acquired at the point of transaction in order to determine if the transaction should be authorized.

摘要翻译： 系统和方法为交易处理和/或访问控制应用提供高效，安全和高度可靠的认证。 个人数字密钥将一个或多个简档（例如，生物特征简档）存储在在安全可信过程中获取的防篡改存储器中。 生物特征描述包括与拥有和携带PDK的个人唯一相关联的物理或行为特征的表示。 PDK通过安全无线事务无线地将生物特征分发到读取器以用于生物特征认证过程。 读者将接收到的生物特征图与在交易点获取的生物特征输入进行比较，以确定交易是否应被授权。