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1. 发明授权

US07033950B2 Graded junction termination extensions for electronic devices 失效
公开(公告)号：US07033950B2
公开(公告)日：2006-04-25
申请号：US10324564
申请日：2002-12-19
申请人： J. Neil Merrett , Tamara Isaacs-Smith , David C. Sheridan , John R. Williams
发明人： J. Neil Merrett , Tamara Isaacs-Smith , David C. Sheridan , John R. Williams
IPC分类号： H01L21/302
CPC分类号： H01L29/0615 , H01L21/0465 , H01L29/1608 , Y10S438/931
摘要： A graded junction termination extension in a silicon carbide (SiC) semiconductor device and method of its fabrication using ion implementation techniques is provided for high power devices. The properties of silicon carbide (SiC) make this wide band gap semiconductor a promising material for high power devices. This potential is demonstrated in various devices such as p-n diodes, Schottky diodes, bipolar junction transistors, thyristors, etc. These devices require adequate and affordable termination techniques to reduce leakage current and increase breakdown voltage in order to maximize power handling capabilities. The graded junction termination extension disclosed is effective, self-aligned, and simplifies the implementation process.

2. 发明授权

US07214627B2 Graded junction termination extensions for electronic devices 失效
标题翻译：电子设备的分级连接终端扩展
公开(公告)号：US07214627B2
公开(公告)日：2007-05-08
申请号：US11201066
申请日：2005-08-09
申请人： J. Neil Merrett , Tamara Isaacs-Smith , David C. Sheridan , John R. Williams
发明人： J. Neil Merrett , Tamara Isaacs-Smith , David C. Sheridan , John R. Williams
IPC分类号： H01L21/302
CPC分类号： H01L29/0615 , H01L21/0465 , H01L29/1608 , Y10S438/931
摘要： A graded junction termination extension in a silicon carbide (SiC) semiconductor device and method of its fabrication using ion implementation techniques is provided for high power devices. The properties of silicon carbide (SiC) make this wide band gap semiconductor a promising material for high power devices. This potential is demonstrated in various devices such as p-n diodes, Schottky diodes, bipolar junction transistors, thyristors, etc. These devices require adequate and affordable termination techniques to reduce leakage current and increase breakdown voltage in order to maximize power handling capabilities. The graded junction termination extension disclosed is effective, self-aligned, and simplifies the implementation process.
摘要翻译：碳化硅（SiC）半导体器件中的分级结端接延伸及其使用离子实现技术制造的方法被提供用于高功率器件。碳化硅（SiC）的性质使这种宽带隙半导体成为高功率器件的有前景的材料。这种电位在诸如p-n二极管，肖特基二极管，双极结型晶体管，晶闸管等的各种器件中得以证明。这些器件需要足够且经济的端接技术来减少泄漏电流并增加击穿电压，以最大化功率处理能力。公开的分级连接终止扩展是有效的，自对齐的，并且简化了实现过程。

3. 发明申请

US20140077227A1 Semiconductor Devices Including Polar Insulation Layer Capped By Non-Polar Insulation Layer 有权
标题翻译：包括非极性绝缘层覆盖的极性绝缘层的半导体器件
公开(公告)号：US20140077227A1
公开(公告)日：2014-03-20
申请号：US14027817
申请日：2013-09-16
申请人： John R. Williams , Ayayi C. Ahyi , Tamara F. Isaacs-Smith , Yogesh K. Sharma , Leonard C. Feldman
发明人： John R. Williams , Ayayi C. Ahyi , Tamara F. Isaacs-Smith , Yogesh K. Sharma , Leonard C. Feldman
IPC分类号： H01L29/51
CPC分类号： H01L29/1608 , H01L21/02129 , H01L21/02164 , H01L21/02236 , H01L21/02255 , H01L21/02321 , H01L21/045 , H01L21/049 , H01L29/42364 , H01L29/513 , H01L29/517 , H01L29/78
摘要： Illustrative embodiments of semiconductor devices including a polar insulation layer capped by a non-polar insulation layer, and methods of fabrication of such semiconductor devices, are disclosed. In at least one illustrative embodiment, a semiconductor device may comprise a semiconductor substrate, a polar insulation layer disposed on the semiconductor substrate and comprising a Group V element configured to increase a carrier mobility in at least a portion of the semiconductor substrate, and a non-polar insulation layer disposed above the polar insulation layer.
摘要翻译：公开了包括由非极性绝缘层覆盖的极性绝缘层的半导体器件的说明性实施例，以及制造这种半导体器件的方法。在至少一个说明性实施例中，半导体器件可以包括半导体衬底，设置在半导体衬底上的极性绝缘层，并且包括配置成增加半导体衬底的至少一部分中的载流子迁移率的第V族元件，极性绝缘层设置在极性绝缘层之上。

4. 发明授权

US08337183B2 Oil return valve for a scroll compressor 失效
标题翻译：用于涡旋压缩机的回油阀
公开(公告)号：US08337183B2
公开(公告)日：2012-12-25
申请号：US12563198
申请日：2009-09-21
申请人： Tracy L. Milliff , Thomas R. Barlto , Edward A. Tomayko , Joe T. Hill , Carlos Zamudio , Zili Sun , Gene M. Fields , Gregory W. Hahn , John R. Williams
发明人： Tracy L. Milliff , Thomas R. Barlto , Edward A. Tomayko , Joe T. Hill , Carlos Zamudio , Zili Sun , Gene M. Fields , Gregory W. Hahn , John R. Williams
IPC分类号： F03C2/00 , F04C2/00 , F04C18/00
CPC分类号： F04C18/0215 , F04C18/0253 , F04C23/008 , F04C28/06 , F04C28/26 , F04C29/021
摘要： A valve for selectively allowing the return of oil from a discharge plenum to a suction plenum includes a passage which is selectively opened or blocked by a valve spool. The valve spool sees a pressure from a discharge pressure location upstream of a discharge check valve on one face, and a discharge pressure from a discharge plenum on an opposed face. While the compressor is running, the two pressures should be relatively equal. The face which sees the pressure from the chamber upstream of the check valve is larger than the face which sees the pressure from the discharge plenum. Thus, when the compressor is running, the valve spool is biased to a first position at which it allows oil return from the discharge plenum to the suction plenum. However, upon shutdown of the compressor, the pressure in the chamber upstream of the discharge valve drops. The valve spool will be driven to a second position at which it blocks communication for oil return.
摘要翻译：用于选择性地允许将油从排出气室返回到吸入室的阀包括通过阀芯选择性地打开或阻塞的通道。阀芯从一个面上的排放止回阀上游的排出压力位置看到压力，并且在相对的面上看到来自排放压力的排出压力。当压缩机运行时，两个压力应相对相等。看到来自止回阀上游的腔室的压力的面积大于看到排气室的压力的面。因此，当压缩机运行时，阀芯被偏压到第一位置，在该第一位置允许压缩机从排出气室向吸入气室返回油。然而，在关闭压缩机时，排出阀上游的室内的压力下降。阀芯将被驱动到第二位置，在该位置阻止油回流的通信。

5. 发明授权

US07918291B2 Spring preloaded bearing assembly and well drilling equipment comprising same 有权
标题翻译：弹簧预载轴承组件和包括它的钻井设备
公开(公告)号：US07918291B2
公开(公告)日：2011-04-05
申请号：US12455740
申请日：2009-06-05
申请人： John R. Williams , Theresa J. Williams, legal representative
发明人： John R. Williams
IPC分类号： E21B3/04
CPC分类号： E21B33/085
摘要： A well drilling head comprises a housing and a bearing assembly. The housing has a sidewall structure defining a central bore. The bearing assembly includes an outer barrel, an inner barrel, bearing units and a preload force exerting member. The outer barrel has a central bore and the inner barrel is removably seated within the housing central bore. The bearing units are coupled between the barrels for providing concentric alignment of the barrels and allowing rotation therebetween. A first one of the bearing units is configured for carrying loads exerted radially between the barrels and a second one of the bearing units is configured for carrying loads exerted longitudinally between the barrels. The preload force exerting member maintains force on the longitudinal load carrying bearing unit and said barrels thereby preloading the longitudinal load carrying bearing unit.
摘要翻译：钻井头包括壳体和轴承组件。壳体具有限定中心孔的侧壁结构。轴承组件包括外筒，内筒，轴承单元和预加载力施加构件。外筒具有中心孔，并且内筒可移除地安置在壳体中心孔内。轴承单元联接在桶之间，以提供筒的同心对准并允许其之间的旋转。轴承单元中的第一个构造成用于承载径向施加在所述滚筒之间的载荷，并且所述轴承单元中的第二轴承单元构造为承载纵向施加在所述滚筒之间的载荷。预紧力施加构件在纵向负载承载单元和所述套筒上保持力，由此预先加载纵向负载承载单元。

6. 发明申请

US20110070114A1 OIL RETURN VALVE FOR A SCROLL COMPRESSOR 失效
标题翻译：用于滚动压缩机的油回油阀
公开(公告)号：US20110070114A1
公开(公告)日：2011-03-24
申请号：US12563198
申请日：2009-09-21
申请人： Tracy L. Milliff , Thomas R. Barito , Edward A. Thomayko , Joe T. Hill , Carlos Zamudio , Zili Sun , Gene M. Fields , Gregory W. Hahn , John R. Williams
发明人： Tracy L. Milliff , Thomas R. Barito , Edward A. Thomayko , Joe T. Hill , Carlos Zamudio , Zili Sun , Gene M. Fields , Gregory W. Hahn , John R. Williams
IPC分类号： F04C29/02 , F04C18/02
CPC分类号： F04C18/0215 , F04C18/0253 , F04C23/008 , F04C28/06 , F04C28/26 , F04C29/021
摘要： A valve for selectively allowing the return of oil from a discharge plenum to a suction plenum includes a passage which is selectively opened or blocked by a valve spool. The valve spool sees a pressure from a discharge pressure location upstream of a discharge check valve on one face, and a discharge pressure from a discharge plenum on an opposed face. While the compressor is running, the two pressures should be relatively equal. The face which sees the pressure from the chamber upstream of the check valve is larger than the face which sees the pressure from the discharge plenum. Thus, when the compressor is running, the valve spool is biased to a first position at which it allows oil return from the discharge plenum to the suction plenum. However, upon shutdown of the compressor, the pressure in the chamber upstream of the discharge valve drops. The valve spool will be driven to a second position at which it blocks communication for oil return.
摘要翻译：用于选择性地允许将油从排出气室返回到吸入室的阀包括通过阀芯选择性地打开或阻塞的通道。阀芯从一个面上的排放止回阀上游的排出压力位置看到压力，以及来自相对面上的排放压力的排出压力。当压缩机运行时，两个压力应相对相等。看到来自止回阀上游的腔室的压力的面积大于看到排气室的压力的面。因此，当压缩机运行时，阀芯被偏压到第一位置，在该第一位置允许压缩机从排出气室向吸入气室返回油。然而，在关闭压缩机时，排出阀上游的室内的压力下降。阀芯将被驱动到第二位置，在该位置阻止油回流的通信。

7. 发明申请

US20100252328A1 Tapered surface bearing assembly and well drilling equipment comprising same 有权
标题翻译：锥形表面轴承组件和包括其的钻井设备
公开(公告)号：US20100252328A1
公开(公告)日：2010-10-07
申请号：US12802779
申请日：2010-06-14
申请人： John R. Williams , Theresa J. Williams
发明人： John R. Williams , Theresa J. Williams
IPC分类号： E21B3/02 , F16C19/00 , E21B3/04 , E21B33/02
CPC分类号： E21B33/085 , Y10T29/4973
摘要： A well drilling head comprises a housing and a bearing assembly. The housing has a sidewall structure defining a central bore. A tapered bearing assembly seating surface is provided within the central bore of the housing. The bearing assembly includes an outer barrel having a central bore, an inner barrel at least partially disposed within the central bore of the outer barrel and bearing units coupled between the barrels for providing concentric alignment of the barrels and allowing rotation therebetween. The outer barrel is removably seated within the central bore of the housing. A tapered exterior surface of the outer barrel is engaged with the tapered bearing assembly seating surface of the housing whereby engagement of the tapered surfaces align the outer barrel with respect to the central bore of the housing.
摘要翻译：钻井头包括壳体和轴承组件。壳体具有限定中心孔的侧壁结构。在壳体的中心孔内设置锥形轴承组件座面。所述轴承组件包括具有中心孔的外筒，至少部分地设置在所述外筒的中心孔内的内筒和联接在所述筒之间的轴承单元，用于提供所述筒的同心对准并允许所述滚筒之间的旋转。外筒可移除地位于壳体的中心孔内。外筒的锥形外表面与壳体的锥形轴承组件就座表面接合，从而锥形表面的接合使外筒相对于壳体的中心孔对准。

8. 发明申请

US20100213635A1 Reinforced stripper rubber body and method of making same 有权
公开(公告)号：US20100213635A1
公开(公告)日：2010-08-26
申请号：US12798164
申请日：2010-03-30
申请人： John R. Williams , Theresa J. Williams
发明人： John R. Williams , Theresa J. Williams
IPC分类号： B29C43/10
CPC分类号： E21B33/085
摘要： A reinforced stripper rubber assembly with a stripper rubber body including a drillstring engaging portion having a drillstring bore extending axially therethrough. The drillstring engaging portion of the stripper rubber body is made from an elastomeric material, has an inner surface that engages a drillstring when the drillstring is dispose therein and has a reinforcing insert receiving recess within an exterior surface thereof extending at least partially around the drillstring bore. A reinforcing insert is disposed within the reinforcing insert receiving recess. The reinforcing insert includes an elastomeric material bonded to the stripper rubber body within the reinforcing insert receiving recess. A support structure is disposed within a support structure engaging portion of the stripper rubber body. The support structure includes a central opening generally aligned with the drillstring bore thereby allowing the drillstring to pass jointly through the central opening and the drillstring bore.

9. 发明授权

US07726416B2 Bearing assembly retaining apparatus and well drilling equipment comprising same 有权
标题翻译：轴承组装固定装置和包括该装置的钻井设备
公开(公告)号：US07726416B2
公开(公告)日：2010-06-01
申请号：US12069095
申请日：2008-02-07
申请人： John R. Williams , Theresa J. Williams, legal representative
发明人： John R. Williams
IPC分类号： E21B3/04 , E21B3/06
CPC分类号： E21B33/085 , Y10T16/05
摘要： A well drilling head housing comprises a sidewall structure, a ram and selective displacement means. The sidewall structure defines a central bore configured for having a bearing assembly removably seated therein. The ram is slideably mounted on the side wall structure and is disposed within a passage extending through the sidewall structure. The selective displacement means is coupled between the ram and the sidewall structure. The selective displacement means is configured for moving the ram to an engaged position in which the ram is engaged with the bearing assembly for securing the bearing assembly in a seated position within the central bore and a disengaged position in which the ram is disengaged from the bearing assembly thereby allowing the bearing assembly to be removed from within the central bore.
摘要翻译：钻井头壳体包括侧壁结构，柱塞和选择性移位装置。侧壁结构限定了中心孔，该中心孔被构造成具有可移除地安置在其中的轴承组件。压头可滑动地安装在侧壁结构上并且设置在延伸穿过侧壁结构的通道内。选择性位移装置联接在压头和侧壁结构之间。选择性移动装置构造成用于将冲头移动到接合位置，在该位置中，冲头与轴承组件接合，用于将轴承组件固定在中心孔内的就座位置和脱离位置，在该位置中，压头与轴承脱离从而允许轴承组件从中心孔内移除。

10. 发明授权

US07717169B2 Bearing assembly system with integral lubricant distribution and well drilling equipment comprising same 有权
标题翻译：具有整体润滑剂分配的轴承组装系统和包括该润滑剂分配的钻井设备
公开(公告)号：US07717169B2
公开(公告)日：2010-05-18
申请号：US12069102
申请日：2008-02-07
申请人： John R. Williams , Theresa J. Williams, legal representative
发明人： John R. Williams
IPC分类号： E21B19/00
CPC分类号： E21B33/085
摘要： A well drilling head comprises a well drilling head housing, a bearing assembly, a first lubricant manifold and a second lubricant manifold. The well drilling head housing has a sidewall structure defining a central bore. The bearing assembly is configured for being removably seated within the well drilling head housing and for having a stripper rubber assembly attached to a lower end portion thereof. The bearing assembly includes a plurality of bearings and a bearing lubricant flow path configured for allowing bearing lubricant to be circulated through the bearings. The first lubricant manifold has a bearing lubricant passage coupled to the first end portion of the bearing lubricant flow path. The second lubricant manifold has a bearing lubricant passage coupled to a second end portion of the bearing lubricant flow path.
摘要翻译：钻井头包括钻井头壳体，轴承组件，第一润滑剂歧管和第二润滑剂歧管。钻井头壳体具有限定中心孔的侧壁结构。轴承组件被构造成可移除地安置在钻井头壳体内，并且具有附接到其下端部分的剥离器橡胶组件。轴承组件包括多个轴承和轴承润滑剂流动路径，其构造成允许轴承润滑剂通过轴承循环。第一润滑剂歧管具有联接到轴承润滑剂流动路径的第一端部的轴承润滑剂通道。第二润滑剂歧管具有联接到轴承润滑剂流动路径的第二端部的轴承润滑剂通道。

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