Method for making a printed wiring board
    21.
    发明授权
    Method for making a printed wiring board 失效
    制造印刷线路板的方法

    公开(公告)号:US06608757B1

    公开(公告)日:2003-08-19

    申请号:US10101277

    申请日:2002-03-18

    IPC分类号: H05K716

    摘要: Via holes are formed in an electrically conductive power plane. Photo-imageable dielectric (PID) material is applied to one side of the power plane filling the via holes. The power plane side with no PID material is exposed to light energy to cure the PID material in the via holes. A developer is used to remove any uncured PID material. Signal plane assemblies comprising a conductive signal plane and a dielectric layer are laminated onto the filled power plane forming a two signal and one power plane (2S1P) structure. In another embodiment, the power plane has PID material applied from both sides. A photo-mask is applied to the power plane and the PID material in the via holes is cured with light energy. A developer is used to remove uncured PID material. Signal plane assemblies, as described above, are laminated onto the filled power plane forming a 2S1P structure.

    摘要翻译: 通孔形成在导电电力平面中。 可光成像电介质(PID)材料被施加到填充通孔的电源平面的一侧。 没有PID材料的电源平面侧暴露于光能以固化通孔中的PID材料。 开发人员用于去除任何未固化的PID材料。 包括导电信号平面和电介质层的信号平面组件层压到形成两个信号和一个功率平面(2S1P)结构的填充的电源平面上。 在另一实施例中,动力平面具有从两侧施加的PID材料。 将光掩模应用于电源平面,通孔中的PID材料用光能固化。 开发人员用于清除未固化的PID材料。 如上所述的信号平面组件被层压到形成2S1P结构的填充的电源平面上。

    Rotary drill bit having an insert with leading and trailing relief
portions
    23.
    发明授权
    Rotary drill bit having an insert with leading and trailing relief portions 失效
    旋转钻头具有带有前部和后部浮雕部分的插入件

    公开(公告)号:US5467837A

    公开(公告)日:1995-11-21

    申请号:US421283

    申请日:1995-04-13

    IPC分类号: E21B10/46 E21B10/54 E21B10/58

    CPC分类号: E21B10/46 E21B10/54 E21B10/58

    摘要: A roof drill bit having a tool body with a cutting insert brazed thereto. The cutting insert has opposite leading and trailing face portions joined by a side surface which has a leading side relief portion adjacent the leading face portion and a trailing side relief portion adjacent the trailing face portion. The trailing side relief portion, which extends from the leading face portion a distance equal to between about one-third to two-thirds the thickness of the insert, has a greater relief angle that the leading side relief portion, which extends from the trailing face portion a distance equal to between about one-third to about two-thirds the thickness of the insert.

    摘要翻译: 一种具有工具主体的屋顶钻头,其具有钎焊到其上的切削刀片。 切削刀片具有由具有与前表面部分相邻的前侧浮雕部分和与后表面部分相邻的后侧浮雕部分的侧表面连接的相对的前后面部分。 从前面部分延伸的距离等于插入件厚度的约三分之一至三分之二的尾边释放部分具有较大的角度,即,从侧面延伸的前侧卸载部分 部分的距离等于插入件的厚度的大约三分之一到三分之二。

    Degasification of coal
    25.
    发明授权
    Degasification of coal 失效
    煤的脱气

    公开(公告)号:US4544208A

    公开(公告)日:1985-10-01

    申请号:US633728

    申请日:1984-07-23

    申请人: Thomas R. Miller

    发明人: Thomas R. Miller

    IPC分类号: E21F7/00 E21F5/00

    CPC分类号: E21F7/00

    摘要: A coal seam is degasified in advance of its being mined by drilling one or more generally horizontal holes from a working face into the seam, and placing a particulate propping agent into the borehole to maintain its integrity.

    摘要翻译: 煤层通过将一个或多个大致水平的孔从工作面钻入接缝中而在其开采之前脱气,并将颗粒状支撑剂置于钻孔中以保持其完整性。

    Services related to conference calls
    26.
    发明授权
    Services related to conference calls 失效
    与电话会议有关的服务

    公开(公告)号:US08634529B2

    公开(公告)日:2014-01-21

    申请号:US11776681

    申请日:2007-07-12

    IPC分类号: H04M3/42 H04M1/64

    摘要: An improved conference calling system that operates to correlate a conference call with other conference calls, along with collateral information pertinent to the conference call, and deliver the correlated information to conference call participants or other entities. When setting up a conference call, a reservation system interface enables a user to not only schedule the conference call, but to also enter information that can be used to (a) correlate the instance conference call with previous or future conference calls, (b) set up for the recordation of the conference call, (c) set up for the delivery of the recorded conference call through one or more media channels, and (d) provide the recorded conference call as well as any related collateral and correlated conference calls to various parties.

    摘要翻译: 一种改进的电话会议系统,其操作以将电话会议与其他电话会议相关联,以及与会议呼叫相关的附带信息,并将相关信息传递给电话会议参与者或其他实体。 在建立电话会议时,预约系统接口使得用户不仅可以安排电话会议,还可以输入可用于(a)将实例电话会议与先前或将来的电话会议关联的信息,(b) 设立电话会议记录,(c)通过一个或多个媒体渠道设置传送录制的电话会议,以及(d)提供记录的电话会议以及任何相关的抵押品和相关电话会议 各方