-
公开(公告)号:US20050139863A1
公开(公告)日:2005-06-30
申请号:US10969804
申请日:2004-10-20
申请人: Roger Welser , Paul DeLuca , Charles Lutz , Kevin Stevens , Noren Pan
发明人: Roger Welser , Paul DeLuca , Charles Lutz , Kevin Stevens , Noren Pan
IPC分类号: H01L21/331 , H01L29/10 , H01L29/20 , H01L29/737 , H01L31/0328
CPC分类号: H01L29/1004 , H01L29/2003 , H01L29/66318 , H01L29/7371
摘要: A semiconductor material which has a high carbon dopant concentration includes gallium, indium, arsenic and nitrogen. The disclosed semiconductor materials have a low sheet resistivity because of the high carbon dopant concentrations obtained. The material can be the base layer of gallium arsenide-based heterojunction bipolar transistors and can be lattice-matched to gallium arsenide emitter and/or collector layers by controlling concentrations of indium and nitrogen in the base layer. The base layer can have a graded band gap that is formed by changing the flow rates during deposition of III and V additive elements employed to reduce band gap relative to different III-V elements that represent the bulk of the layer. The flow rates of the III and V additive elements maintain an essentially constant doping-mobility product value during deposition and can be regulated to obtain pre-selected base-emitter voltages at junctions within a resulting transistor.
摘要翻译: 具有高碳掺杂浓度的半导体材料包括镓,铟,砷和氮。 所公开的半导体材料由于获得的高碳掺杂剂浓度而具有低的薄层电阻率。 该材料可以是基于砷化镓的异质结双极晶体管的基极层,并且可以通过控制基极层中的铟和氮的浓度而与砷化镓发射极和/或集电极层晶格匹配。 基层可以具有渐变带隙,其通过改变用于减少相对于表示该层的主体的不同III-V元素的带隙的III和V添加元素的沉积期间的流速而形成。 III和V添加元素的流速在沉积期间保持基本恒定的掺杂迁移率产物值,并且可以调节以在所得晶体管内的结处获得预选的基极 - 发射极电压。
-
公开(公告)号:USD503214S1
公开(公告)日:2005-03-22
申请号:US29196532
申请日:2003-12-30
申请人: Kevin Stevens , Micah Somers , Martijn Loerakker
设计人: Kevin Stevens , Micah Somers , Martijn Loerakker
-
公开(公告)号:US06234017B1
公开(公告)日:2001-05-22
申请号:US09182374
申请日:1998-10-29
申请人: Kevin Stevens , Colin Smith
发明人: Kevin Stevens , Colin Smith
IPC分类号: G01F2300
CPC分类号: B06B1/0215 , G01F23/2961
摘要: A transducer assembly adapted for the pulse-emission of a signal includes a transducer (10) with a drive-circuit (20) therefor. The drive circuit (20) includes a charge-storage device (21), a wound-coil device (23) and one or more switching-elements (24, 25). The assembly can be used to determine the level of a fluid in an enclosed vessel.
摘要翻译: 适于信号的脉冲发射的换能器组件包括具有驱动电路(20)的换能器(10)。 驱动电路(20)包括充电存储装置(21),绕线线圈装置(23)和一个或多个开关元件(24,25)。 该组件可用于确定封闭容器中的流体的水平。
-
公开(公告)号:USD937437S1
公开(公告)日:2021-11-30
申请号:US29767936
申请日:2021-01-26
申请人: Jeffrey J. Konczak , Kevin Stevens
设计人: Jeffrey J. Konczak , Kevin Stevens
-
公开(公告)号:US20130283963A1
公开(公告)日:2013-10-31
申请号:US13864154
申请日:2013-04-16
申请人: Kevin Stevens
发明人: Kevin Stevens
IPC分类号: B62K21/14
CPC分类号: B62K21/14 , Y10T74/2078 , Y10T74/20786 , Y10T74/20822 , Y10T403/405
摘要: A shock absorbing handlebar brace attached between handlebar sides. The shock absorbing handlebar brace includes a telescoping center section with a compressible rubber insert to allow the brace to slightly extend upon impacts to reduce rider fatigue.
摘要翻译: 手柄侧面之间安装有减震手柄支架。 减震手柄支架包括具有可压缩橡胶插入件的伸缩中心部分,以允许支架在冲击时稍微延伸以减少骑手疲劳。
-
公开(公告)号:USD503213S1
公开(公告)日:2005-03-22
申请号:US29196485
申请日:2003-12-30
申请人: Kevin Stevens , Micah Somers , Martijn Loerakker
设计人: Kevin Stevens , Micah Somers , Martijn Loerakker
-
公开(公告)号:USD911553S1
公开(公告)日:2021-02-23
申请号:US29659039
申请日:2018-08-06
申请人: Jeffrey J. Konczak , Kevin Stevens
设计人: Jeffrey J. Konczak , Kevin Stevens
-
公开(公告)号:US09345942B2
公开(公告)日:2016-05-24
申请号:US13885594
申请日:2011-11-16
申请人: Kevin Stevens
发明人: Kevin Stevens
CPC分类号: A63B69/18 , A45F3/005 , A45F3/04 , A45F2003/001 , A63B69/182 , A63B2208/12 , A63B2209/10 , A63C11/025
摘要: There is described a carrier, such as a backpack, waist bag or bum bag, which includes a retractable towing belt assembly, suitable for towing children along a ski slope.
摘要翻译: 描述了一种载体,例如背包,腰包或者屁股袋,其包括可伸缩牵引带组件,适于沿着滑雪坡拖曳儿童。
-
公开(公告)号:US08967020B2
公开(公告)日:2015-03-03
申请号:US13864154
申请日:2013-04-16
申请人: Kevin Stevens
发明人: Kevin Stevens
IPC分类号: B62K21/14
CPC分类号: B62K21/14 , Y10T74/2078 , Y10T74/20786 , Y10T74/20822 , Y10T403/405
摘要: A shock absorbing handlebar brace attached between handlebar sides. The shock absorbing handlebar brace includes a telescoping center section with a compressible rubber insert to allow the brace to slightly extend upon impacts to reduce rider fatigue.
摘要翻译: 手柄侧面之间安装有减震手柄支架。 减震手柄支架包括具有可压缩橡胶插入件的伸缩中心部分,以允许支架在冲击时稍微延伸以减少骑手疲劳。
-
公开(公告)号:US07357758B2
公开(公告)日:2008-04-15
申请号:US10215794
申请日:2002-08-08
申请人: Louis F. Polk, III , Paul M. Theisen , Randy Williams , Kenneth V. Schomburg , Kevin Stevens , Darrin Swagel
发明人: Louis F. Polk, III , Paul M. Theisen , Randy Williams , Kenneth V. Schomburg , Kevin Stevens , Darrin Swagel
IPC分类号: A63B22/02
CPC分类号: A63B22/0023 , A63B22/0235 , A63B2210/50
摘要: A treadmill is provided that has a treadmill drive motor carriage that can pivot relative to a frame of the treadmill such that the incline of the treadmill can be controlled while the carriage can be moved to a position that permits upright storage of the treadmill on the carriage. This arrangement advantageously permits a walk through treadmill design to be used that can be stored uprightly. The treadmill can be equipped with a console and stanchion that can be folded against the deck of the treadmill. One incline arrangement pivots the carriage using an incline drive carried by the carriage that engages a gear grounded to the treadmill frame. Another preferred incline arrangement uses a four bar linkage movable carried by the frame that is driven by a linear actuator to pivot the carriage.
摘要翻译: 提供了一种跑步机,其具有可相对于跑步机的框架枢转的跑步机驱动电动机滑架,使得可以控制踏车的倾斜度,同时可将滑架移动到允许跑步机直立存放在滑架上的位置 。 这种安排有利地允许通过可以直立地存储的使用的跑步机设计的步行。 跑步机可以配备一个可以与跑步机的甲板折叠的控制台和支柱。 一个倾斜装置使用由托架承载的倾斜驱动器使托架枢转,该斜面驱动器接合到踏板架上的齿轮。 另一个优选的倾斜布置使用可由框架承载的四杆连杆,其由线性致动器驱动以使托架枢转。
-
-
-
-
-
-
-
-
-