公开(公告)号：US4878222A

公开(公告)日：1989-10-31

申请号：US228430

申请日：1988-08-05

申请人： David J. Lawrence

发明人： David J. Lawrence

IPC分类号： H01S5/00 ,  H01S5/042 ,  H01S5/06 ,  H01S5/062 ,  H01S5/22

CPC分类号： H01S5/22 ,  H01S5/06203 ,  H01S5/06236 ,  H01S5/06243

摘要： A family of semiconductor diode lasers is made available whose emitted laser light beam intensity can be electrically modulated with low voltage, low current modulating control bias signals. By appropriate design of the diode laser devices in accordance with the invention and provision of means for adjusting the relative values of the applied modulating control bias signals, the improved diode lasers can be switched on and off electrically in addition to modulation of the emitted output laser light beam intensity. Further, the physical position of the emitted laser light beam spot along the laser facet readily can be moved by the same electrically operable control means so as to provide modulation, turn-on and turn-off and small lateral movement as well as scanning of the laser light beam in a single heterostructural diode laser device.

公开(公告)号：US06997689B2

公开(公告)日：2006-02-14

申请号：US10369848

申请日：2003-02-20

申请人： Gregory A. Lafferty ,  David J. Lawrence

发明人： Gregory A. Lafferty ,  David J. Lawrence

IPC分类号： F03C2/00

CPC分类号： F04C2/086 ,  Y10T29/49238

摘要： A bearing assembly (20) for a pump (12), e.g., an internal or external gear pump includes a journal bearing block (20) having a length, a width, and an axial centerline (CL′) passing through a center of the journal bearing block (20) with respect to the length. The journal bearing block (20) includes at least two journal bearing bores (21), the journal bearing bores (21) each having a center (C), wherein a bearing bore centerline (CL) extends between the centers (C) of the journal bearing bores (21) and in parallel with the bearing bore centerline (CL). The bearing bore centerline (CL) is offset with respect to the width of the journal bearing block (20) and the axial centerline (CL′). The bearing assembly (20) is particularly applicable to gear pumps, such as external gear pumps for fuel applications.

摘要翻译： 用于例如内部或外部齿轮泵的泵（12）的轴承组件（20）包括轴颈轴承座（20），该轴颈轴承座具有经过中心的长度，宽度和轴向中心线（CL'）， 轴承座（20）相对于长度。 轴颈轴承座（20）包括至少两个轴颈轴承孔（21），轴颈轴承孔（21）各自具有中心（C），其中轴承孔中心线（CL）在中心（C） 轴颈孔（21）并与轴承孔中心线（CL）平行。 轴承孔中心线（CL）相对于轴颈轴承座（20）和轴向中心线（CL'）的宽度偏移。 轴承组件（20）特别适用于齿轮泵，例如用于燃料应用的外齿轮泵。

公开(公告)号：US6058921A

公开(公告)日：2000-05-09

申请号：US67794

申请日：1998-04-28

申请人： David J. Lawrence ,  Terry R. Whitford

发明人： David J. Lawrence ,  Terry R. Whitford

IPC分类号： F41G1/467 ,  F41B5/00

CPC分类号： F41G1/467

摘要： A peep sight having a body within which is mounted a transparent lens with a pair of substantially parallel faces and a peep hole for use on a weapon such as an archery bow or a firearm. The peep hole has a sidewall that slopes towards a target side of the lens and forms a contrast ring around the peep hole. The sidewall is preferably coated with a dark, non-reflective coating and the lens is colored for improved contrast.

摘要翻译： 具有身体的窥视者，其中安装有具有一对基本上平行的面的透明透镜和用于诸如射箭弓或火器的武器的窥视孔。 窥视孔具有朝向透镜的目标侧倾斜的侧壁，并在窥视孔周围形成对比环。 侧壁优选地涂覆有暗的非反射涂层，并且透镜被着色以提高对比度。

公开(公告)号：US08048304B2

公开(公告)日：2011-11-01

申请号：US12331248

申请日：2008-12-09

申请人： Brian J. Waibel ,  David J. Lawrence ,  Michael Case

发明人： Brian J. Waibel ,  David J. Lawrence ,  Michael Case

IPC分类号： B01D11/00

CPC分类号： B01D3/40 ,  B01D3/007 ,  B01D11/0203 ,  B01D11/028 ,  B01D11/0296 ,  B01D11/0403 ,  B01D11/0407 ,  B01D11/0488 ,  B01D19/0057 ,  Y02B30/52 ,  Y02P70/34

摘要： Systems and methods for improving dense gas solvent extraction of a solute and recovery of the solvent are provided. A pressure of the solvent/solute mixture obtained from an extraction chamber is increased, e.g. with a pump, thereby providing the mixture above saturation conditions. The increased pressure provides greater solubility of the solute and less solvent being vaporized in a heat exchanger. A buildup of solute in the system is reduced, thus improving system longevity. Also, process conditions of the separation process are isolated from those of the extraction process. Accordingly, the process conditions for the separating process are maintained while the process conditions of the extraction chamber vary with ambient temperature, thus saving cost and energy. This isolation also provides an ability to use, in the gas recovery cycle, a heat pump that can be used for many applications and environmental conditions while still using a conventional refrigerant.

摘要翻译： 提供了改进稠溶气萃取溶质和回收溶剂的系统和方法。 从提取室获得的溶剂/溶质混合物的压力增加，例如， 用泵，从而提供混合物在饱和条件下。 增加的压力提供更高的溶质溶解度和更少的溶剂在热交换器中蒸发。 系统中溶质的积累减少，从而提高系统寿命。 此外，分离过程的工艺条件与提取过程的工艺条件分离。 因此，当提取室的工艺条件随环境温度变化时，保持分离过程的工艺条件，从而节省成本和能量。 这种隔离还提供了在气体回收循环中使用可以在仍然使用常规制冷剂的情况下用于许多应用和环境条件的热泵的能力。

公开(公告)号：US07966995B2

公开(公告)日：2011-06-28

申请号：US11850302

申请日：2007-09-05

申请人： Paul W. Futa, Jr. ,  Gregory A. Lafferty ,  David J. Lawrence ,  David J. Tuttle

发明人： Paul W. Futa, Jr. ,  Gregory A. Lafferty ,  David J. Lawrence ,  David J. Tuttle

IPC分类号： F02M37/04 ,  F02M37/00

CPC分类号： F04B49/06 ,  F02C7/232 ,  F02C7/236

摘要： A system and method provide dual level pressurization control of a fuel supply system based on whether fuel is being supplied to one or more secondary fuel loads. Fuel pump discharge backpressure is maintained above either a first minimum pressure value or a lower second minimum pressure value by determining whether fuel is being supplied to one or more secondary fuel loads. The fuel pump discharge pressure is maintained above the first minimum pressure value if it is determined that fuel is being supplied to the one or more secondary loads. The fuel pump discharge backpressure is maintained above the lower second minimum pressure value if it is determined that fuel is not being supplied to the one or more secondary loads.

摘要翻译： 系统和方法基于是否将燃料供应给一个或多个二次燃料负载来提供燃料供应系统的双重级别的加压控制。 通过确定是否向一个或多个二次燃料负载供应燃料，燃料泵排出背压保持在第一最小压力值或较低的第二最小压力值之上。 如果确定燃料被供给到一个或多个二次负载，则燃料泵排出压力保持高于第一最小压力值。 如果确定没有向一个或多个二次负载供应燃料，则燃料泵排出背压保持在较低的第二最小压力值以上。

公开(公告)号：US5636488A

公开(公告)日：1997-06-10

申请号：US309748

申请日：1994-09-21

申请人： David J. Lawrence ,  Christopher L. Healy ,  Robert C. Labbett

发明人： David J. Lawrence ,  Christopher L. Healy ,  Robert C. Labbett

IPC分类号： E04D3/36 ,  E04B7/00 ,  E04D3/363

CPC分类号： E04D3/3602 ,  E04D3/3607

摘要： A clip assembly 20 for concealed fixing of cladding sheets 50, of the type having re-entrant longitudinal ribs 51, 52 has a retaining element 29 for engaging inside a rib of the sheet. The retaining elements includes a fixing portion 31 disposed in a plane transverse to the rib and shaped for snap-fit engagement with a re-entrant portion 59 of the rib. The retaining formations may be disposed along a strap 21 in opposed pairs, with fastening apertures 40 in the strap centrally disposed below each rib. An improved cladding sheet 50 having interlocking male and female end regions 61, 62 is also disclosed.

摘要翻译： 用于隐蔽固定包覆片50的夹子组件20具有一个保持元件29，该保持元件用于接合片材的肋条内。 保持元件包括固定部分31，该固定部分31设置在横向于肋的平面中并成形为用于与肋的入口部分59卡扣配合接合。 保持结构可以沿相反对的带21布置，带中的紧固孔40集中设置在每个肋下方。 还公开了具有互锁的阳和阴端部区域61,62的改进的包层片50。

公开(公告)号：US5116781A

公开(公告)日：1992-05-26

申请号：US568803

申请日：1990-08-17

申请人： John A. Agostinelli ,  David J. Lawrence

发明人： John A. Agostinelli ,  David J. Lawrence

IPC分类号： H01L21/22 ,  H01L21/225 ,  H01L33/00

CPC分类号： H01L21/2258 ,  Y10S148/099

摘要： A process is disclosed of diffusing a zinc dopant into a III-V compound substrate. To avoid degrading the substrate surface the zinc dopant source is provided by coating an organic composition comprised of a zinc organic compound chosen from the group consisting of zinc alcoholates, .beta.-diketonate chelates and carboxylate salts. The composition inludes at least one organic film-forming moiety containing from 5 to 30 carbon atoms.

摘要翻译： 公开了将锌掺杂剂扩散到III-V复合衬底中的方法。 为了避免降解底物表面，锌掺杂剂源通过涂覆由锌醇盐酸盐，β-二酮螯合物和羧酸盐组成的组中的锌有机化合物组成的有机组合物来提供。 所述组合物包含含有5至30个碳原子的至少一个有机成膜部分。

公开(公告)号：US08071656B2

公开(公告)日：2011-12-06

申请号：US12397048

申请日：2009-03-03

申请人： Brian J. Waibel ,  Hans Schonemann ,  Val Krukonis ,  David J. Lawrence ,  Joseph N. Caulfield

发明人： Brian J. Waibel ,  Hans Schonemann ,  Val Krukonis ,  David J. Lawrence ,  Joseph N. Caulfield

IPC分类号： C08J11/04

CPC分类号： C08J11/08 ,  C08J2377/04 ,  Y02W30/701

摘要： The present invention provides energetically and economically efficient methods for separating polyamide polymer(s) from commingled materials. The methods generally involve precipitating a polyamide polymer dissolved in a solvent (e.g., formic acid) using dimethyl ether (DME) as an antisolvent. The methods comprise dissolving the polyamide polymer in a solvent that (i) selectively dissolves the polyamide polymer relative to the other materials and (ii) has a higher solubility for DME relative to the polyamide polymer; and then contacting the mixture of the solvent with the dissolved polyamide polymer with DME, thereby precipitating the polyamide polymer.

摘要翻译： 本发明提供了用于将聚酰胺聚合物与混合材料分离的能量和经济有效的方法。 所述方法通常涉及使用二甲醚（DME）作为反溶剂使溶解在溶剂（例如甲酸）中的聚酰胺聚合物沉淀。 所述方法包括将聚酰胺聚合物溶解在溶剂中，（i）相对于其它材料选择性地溶解聚酰胺聚合物，和（ii）相对于聚酰胺聚合物具有较高的DME溶解度; 然后将溶剂与溶解的聚酰胺聚合物的混合物与DME接触，从而沉淀聚酰胺聚合物。

公开(公告)号：US20090166175A1

公开(公告)日：2009-07-02

申请号：US12331248

申请日：2008-12-09

申请人： Brian J. Waibel ,  David J. Lawrence ,  Michael Case

发明人： Brian J. Waibel ,  David J. Lawrence ,  Michael Case

IPC分类号： B01D3/40 ,  B01D3/34

CPC分类号： B01D3/40 ,  B01D3/007 ,  B01D11/0203 ,  B01D11/028 ,  B01D11/0296 ,  B01D11/0403 ,  B01D11/0407 ,  B01D11/0488 ,  B01D19/0057 ,  Y02B30/52 ,  Y02P70/34

摘要： Systems and methods for improving dense gas solvent extraction of a solute and recovery of the solvent are provided. A pressure of the solvent/solute mixture obtained from an extraction chamber is increased, e.g. with a pump, thereby providing the mixture above saturation conditions. The increased pressure provides greater solubility of the solute and less solvent being vaporized in a heat exchanger. A buildup of solute in the system is reduced, thus improving system longevity. Also, process conditions of the separation process are isolated from those of the extraction process. Accordingly, the process conditions for the separating process are maintained while the process conditions of the extraction chamber vary with ambient temperature, thus saving cost and energy. This isolation also provides an ability to use, in the gas recovery cycle, a heat pump that can be used for many applications and environmental conditions while still using a conventional refrigerant.

摘要翻译： 提供了改进稠溶气萃取溶质和回收溶剂的系统和方法。 从提取室获得的溶剂/溶质混合物的压力增加，例如， 用泵，从而提供混合物在饱和条件下。 增加的压力提供更高的溶质溶解度和更少的溶剂在热交换器中蒸发。 系统中溶质的积累减少，从而提高系统寿命。 此外，分离过程的工艺条件与提取过程的工艺条件分离。 因此，当提取室的工艺条件随环境温度变化时，保持分离过程的工艺条件，从而节省成本和能量。 这种隔离还提供了在气体回收循环中使用可以在仍然使用常规制冷剂的情况下用于许多应用和环境条件的热泵的能力。

公开(公告)号：US5239189A

公开(公告)日：1993-08-24

申请号：US711699

申请日：1991-06-07

申请人： David J. Lawrence

发明人： David J. Lawrence

IPC分类号： H01L27/15 ,  H01L31/12 ,  H01L31/14 ,  H01L31/173

CPC分类号： H01L31/12 ,  H01L31/173

摘要： An integrated semiconductor device includes a pair of spaced apart regions of semiconductor material on a surface of a substrate of semiconductor material. One of the regions is a light emitting device and the other region is a light detector device. Each of the regions is formed of a first layer on the substrate surface of a composition suitable for serving as a light detector active layer. Additional layers are on the first layer with at least one of the additional layers being of a composition to act as a light emitter active layer. A contact layer may be provided on the additional layers. The light detector region has a highly conductive region extending through the additional layers and slightly into the light detector active layer. The light emitter region may have a highly conductive region extending through some of the additional layers to the light emitting active layer. Thus, both the light emitting region and the light detecting region are formed from the same layers of semiconductor material.