公开(公告)号：US07140925B2

公开(公告)日：2006-11-28

申请号：US11148093

申请日：2005-06-08

申请人： Jeffrey W. Allison ,  Brian M. Rohrbaugh ,  Robert F. Evans

发明人： Jeffrey W. Allison ,  Brian M. Rohrbaugh ,  Robert F. Evans

IPC分类号： H01R13/64

CPC分类号： H01R13/44 ,  H01R12/724

摘要： Electrical receptacle connectors are provided including an insulative housing and AC power contacts disposed therein that are configured for engaging an external power supply. The receptacle connectors are employed with a safety guard for restricting operator access to hot AC power contacts when disconnected from complementary header connectors. Preferred safety guards include projections extending along at least a portion of perimeter areas surrounding housing apertures that provide access to engaging portions of the AC power contacts. The projections define a safety gap between human digits directed toward the housing apertures and the AC power contacts.

摘要翻译： 提供的电插座连接器包括绝缘外壳和设置在其中的配置为接合外部电源的AC电力触头。 插座连接器与安全保护装置一起使用，以在与互补的插头连接器断开时限制操作者对热AC电源触点的访问。 优选的安全防护装置包括沿着围绕壳体孔的周边区域的至少一部分延伸的突起，其提供对AC电力接触件的接合部分的通路。 这些突起限定了指向壳体孔径的人员数字与AC电源触点之间的安全距离。

公开(公告)号：US07037142B2

公开(公告)日：2006-05-02

申请号：US11227666

申请日：2005-09-15

申请人： Robert F. Evans

发明人： Robert F. Evans

IPC分类号： H01R13/64

CPC分类号： H01R13/44 ,  H01R12/724

摘要： Electrical receptacle connectors are provided including an insulative housing and AC power contacts disposed therein that are configured for engaging an external power supply. The receptacle connectors are employed with a safety guard for restricting operator access to hot AC power contacts when disconnected from complementary header connectors. Preferred safety guards include projections extending along at least a portion of perimeter areas surrounding housing apertures that provide access to engaging portions of the AC power contacts. The projections define a safety gap between human digits directed toward the housing apertures and the AC power contacts.

公开(公告)号：US06848944B2

公开(公告)日：2005-02-01

申请号：US10010149

申请日：2001-11-12

申请人： Robert F. Evans

发明人： Robert F. Evans

IPC分类号： H01R12/72 ,  H01R13/514 ,  H01R13/6471 ,  H01R13/6477 ,  H01R13/648 ,  H01R13/6586

CPC分类号： H01R12/728 ,  H01R13/6471 ,  H01R13/6477 ,  H01R13/6586 ,  Y10T29/49147 ,  Y10T29/49153 ,  Y10T29/49222

摘要： A high speed electrical connector is provided that comprises a substantially planar dielectric, a substantially planar ground plane, and a signal conductor. The ground plane is disposed on one planar surface of the planar dielectric and the signal conductor is disposed on the opposing planar surface of the planar dielectric.

摘要翻译： 提供了一种高速电连接器，其包括基本上平面的电介质，基本上平面的接地平面和信号导体。 接地平面设置在平面电介质的一个平面上，信号导体设置在平面电介质的相对平面上。

公开(公告)号：USD485356S1

公开(公告)日：2004-01-13

申请号：US29183315

申请日：2003-06-10

申请人： Robert F. Evans

设计人： Robert F. Evans

公开(公告)号：US4687066A

公开(公告)日：1987-08-18

申请号：US819031

申请日：1986-01-15

申请人： Robert F. Evans

发明人： Robert F. Evans

IPC分类号： E21B10/18

CPC分类号： E21B10/18

摘要： A drill bit having a nozzle for drilling fluid to pass out of the drill bit and into the bore hole is disclosed. In one embodiment two diagonal passages through the nozzle impart angular momentum to the drilling fluid. In another embodiment, four diagonal passages through the nozzle impart angular momentum. In still another embodiment, a central bore hole through the nozzle has helical grooves along its internal orifice wall to impart angular momentum. The angular momentum causes the drilling fluid exiting from the interior of the drill bit to flow downward into the bore hole in a divergent vortex that sweeps the cuttings away from the cutting surfaces of the drill bit.

摘要翻译： 公开了一种钻头，其具有用于钻出流体以从钻头中排出并进入钻孔的喷嘴。 在一个实施例中，穿过喷嘴的两个对角通道向钻井液赋予角动量。 在另一个实施例中，穿过喷嘴的四个对角通道赋予角动量。 在另一个实施例中，穿过喷嘴的中心钻孔沿其内部孔壁具有螺旋槽，以赋予角动量。 角动量导致从钻头内部排出的钻井液在发散的涡流中向下流入钻孔，其将切屑从钻头的切割表面扫过。

公开(公告)号：US4666000A

公开(公告)日：1987-05-19

申请号：US819030

申请日：1986-01-15

申请人： Robert F. Evans

发明人： Robert F. Evans

IPC分类号： E21B10/20 ,  E21B10/22

CPC分类号： E21B10/22 ,  E21B10/20

摘要： An improved retainer for a rotary cone rock bit and a method for inserting the same is disclosed. A cone cutter is mounted on a bearing pin of an arm of the rotary cone drill bit. Formed in the bearing pin and the inner wall of the cone cutter is an annular channel that is filled with discs through an insertion cavity and the insertion cavity is subsequently sealed. This enables the bearing surface and the bushing engaging the bearing pin to be substantially longer than heretofore possible and the wobble of the cone cutter about the bearing pin is reduced.

摘要翻译： 公开了一种用于旋转锥形岩石钻头的改进的保持器及其插入方法。 锥形切割机安装在旋转锥形钻头的臂的轴承销上。 形成在轴承销中，锥形切割器的内壁是环形通道，其通过插入腔填充有盘，并且随后将插入腔密封。 这使得轴承表面和接合轴承销的衬套基本上比以前更长，并且锥形切割器围绕轴承销的摆动减小。

公开(公告)号：US4151051A

公开(公告)日：1979-04-24

申请号：US901499

申请日：1978-05-01

申请人： Robert F. Evans

发明人： Robert F. Evans

IPC分类号： C25B1/00 ,  C25C1/00 ,  C25B9/04

CPC分类号： C25B1/00 ,  C25C1/00 ,  Y02P20/133 ,  Y02P20/134 ,  Y10S204/03 ,  Y10S204/05

摘要： A deposition unit having a cathode surface is submerged in a natural body of moving water containing various materials including metallic materials carried by the flow of movement of the water body. The flow of water encompasses the deposition unit and contacts the cathode surface. An electric current at the cathode surface causes electrodeposition of certain materials contained within the flow of moving water. The electrical energy for electrodeposition is derived from a naturally occurring and proximate energy source at the body of water. Energy from tidal flow, from water movement beneath the surface, from wave motion at the upper surface, or from a temperature difference between the upper and lower levels of the water body, operates an electrical generator which supplies the electrodeposition energy. The flow of water relative to the deposition unit cooperatively interacts with magnetic flux emanating from another embodiment of the deposition unit to establish the electrodeposition energy. Other sources of proximate naturally occurring energy for effecting electrodeposition are wind energy and solar energy.

摘要翻译： 具有阴极表面的沉积单元浸没在包含由水体运动所携带的金属材料的各种材料的移动水的天然体中。 水流包围沉积单元并与阴极表面接触。 在阴极表面的电流导致包含在移动水流中的某些材料的电沉积。 用于电沉积的电能来源于水体处的天然存在和邻近的能量源。 来自潮汐流的能量，表面下方的水运动，上表面的波浪运动或水体的上下两级之间的温度差运行提供电沉积能量的发电机。 相对于沉积单元的水的流动与从沉积单元的另一个实施方案发出的磁通相互作用以建立电沉积能。 用于进行电沉积的靠近天然发生能量的其他来源是风能和太阳能。

公开(公告)号：US4144936A

公开(公告)日：1979-03-20

申请号：US807086

申请日：1977-06-16

申请人： Robert F. Evans

发明人： Robert F. Evans

IPC分类号： B23H9/00 ,  E21B29/02 ,  E21B29/12 ,  E21B33/035 ,  E21B29/00

CPC分类号： B23H9/00 ,  E21B29/02 ,  E21B29/12 ,  E21B33/0355

摘要： Apparatus is disclosed for milling metal submerged in salt water or within a hole, such as cutting off the upper ends of pipes and casings in a well-drilling operation below the sea floor. A hydraulic motor is suspended in the hole and driven by sea water to rotate an electrical generator and to rotate a cutting tool. The tool includes radially movable, electrically conductive elements which form the cathodes of an electrochemical machining operation for removing metal. The tool elements include abrasive material so that they can mechanically cut through cement.

摘要翻译： 公开了用于研磨淹没在盐水中或在孔内的金属的装置，例如在海底以下的钻井操作中切断管道和壳体的上端。 液压马达悬挂在孔中并由海水驱动，以使发电机旋转并旋转切削工具。 该工具包括可移动的导电元件，其形成用于去除金属的电化学加工操作的阴极。 工具元件包括研磨材料，使得它们可以机械地切割水泥。

公开(公告)号：UST970002I4

公开(公告)日：1978-05-02

申请号：US833480

申请日：1977-09-15

申请人： Harry E. Kidder ,  Robert F. Evans

发明人： Harry E. Kidder ,  Robert F. Evans

IPC分类号： E21B10/22 ,  E21B10/52

CPC分类号： E21B10/52 ,  E21B10/22 ,  Y10T407/28

摘要： a cutting element for mounting in a rolling cone cutter of a rock drill bit has a notch in the periphery of its base for improved retention of the cutting element in the rolling cone cutter. The longitudinal axis of the notch is essentially transverse to the direction of insertion of the cutting element into the rolling cone cutter. To maximize the effectiveness of the notch in improving retention of the cutting element, preferably the notch is sharp lipped.

公开(公告)号：US3941448A

公开(公告)日：1976-03-02

申请号：US492731

申请日：1974-07-29

申请人： Robert F. Evans

发明人： Robert F. Evans

IPC分类号： H01R12/79 ,  H01R12/87 ,  H05K1/07

CPC分类号： H01R12/79 ,  H01R12/87

摘要： A connector block having a first slot extending from one face in a direction for receiving the edge of a circuit board, a second slot extending from a second face in a direction opposite to the first slot and past the first slot for receiving a nose with a ribbon cable wrapped around the nose, openings in the body portion between the slots and contact terminals confined within such openings such that insertion of the nose and ribbon cable into the second slot and insertion of the circuit board into the first slot stresses the contacts between the nose and board and forms electrical interconnections therebetween.

摘要翻译： 一种连接器块，其具有从用于接收电路板的边缘的方向上的一个面延伸的第一槽，从与第一槽相反的方向从第二面延伸并且经过第一槽的第二槽，用于接收具有 带状电缆缠绕在鼻子上，狭缝之间的主体部分中的开口和限定在这种开口内的接触端子之间，使得鼻部和带状电缆插入第二槽并将电路板插入第一槽中， 鼻子和板，并在它们之间形成电互连。