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1. 发明授权

US5189275A Printed circuit assembly with contact dot 失效
标题翻译：具有接触点的印刷电路组件
公开(公告)号：US5189275A
公开(公告)日：1993-02-23
申请号：US409850
申请日：1989-08-21
申请人： Frank J. Avellino , Richard A. Case , David T. Swanson
发明人： Frank J. Avellino , Richard A. Case , David T. Swanson
IPC分类号： B23K11/20 , H05K1/00 , H05K1/11 , H05K3/32 , H05K3/40
CPC分类号： B23K11/20 , H05K3/328 , H05K3/4015 , H05K1/0393 , H05K1/118 , H05K2201/0394 , Y10T29/49155 , Y10T29/49213
摘要： A method of applying discrete areas of a noble metal to individual pads on a flexible printed circuit board comprises the steps of forming a particular pattern of electrically conductive material on a flexible, electrically insulating substrate. The pattern includes individual pads. An aperture is formed through the electrically insulating substrate to expose a portion of the underside of at least one of the individual pads, and then contacting the underside with an electrode, contacting the upper surface of the individual pad with a wire comprised of the noble metal, applying a welding current between the electrode and the wire to weld the wire to the pad and severing the wire to leave a particular amount on the upper surface of the pad.
摘要翻译：将贵金属的离散区域应用于柔性印刷电路板上的各个焊盘的方法包括在柔性电绝缘基板上形成导电材料的特定图案的步骤。图案包括单独的垫。通过电绝缘基板形成开口，以暴露至少一个单独焊盘的下侧的一部分，然后使下侧与电极接触，该电极使单独焊盘的上表面与由贵金属在电极和电线之间施加焊接电流以将电线焊接到焊盘并切断电线以在焊盘的上表面上留下特定的量。

2. 发明授权

US4925522A Printed circuit assembly with contact dot 失效
标题翻译：具有接触点的印刷电路组件
公开(公告)号：US4925522A
公开(公告)日：1990-05-15
申请号：US396257
申请日：1989-08-21
申请人： Frank J. Avellino , Richard A. Case , David T. Swanson
发明人： Frank J. Avellino , Richard A. Case , David T. Swanson
IPC分类号： H05K1/00 , H05K1/11 , H05K3/06 , H05K3/32 , H05K3/40
CPC分类号： H05K3/328 , H05K3/062 , H05K3/4015 , H05K1/0393 , H05K1/118 , H05K2201/0305 , H05K2203/1115
摘要： A method of making printed circuit boards having gold dot contacts formed on the terminal pads is disclosed. A first layer of copper is overlayed with a pattern of tin or solder which acts as a resist. The gold dot contacts are resistance welded to the terminal pads. The copper underlayment and its pattern of tin or solder carrying the gold dots is then bonded to an electrically insulating substrate, which can be flexible, to form a composite board which is then etched to form a printed circuit board having gold dot contacts thereon. Other materials than tin or solder can be employed so long as there is a difference in etchability between it and the copper foil.
摘要翻译：公开了一种在端子焊盘上形成具有金点触点的印刷电路板的方法。第一层铜层叠着作为抗蚀剂的锡或焊料图案。金点触点电阻焊接到端子焊盘。然后将铜垫层及其带有金点的锡或焊料的图案接合到可以是柔性的电绝缘基板上，以形成复合板，然后将该复合板进行蚀刻以形成其上具有金点接触的印刷电路板。可以使用除锡或焊料以外的其它材料，只要其与铜箔之间的蚀刻性差异即可。

3. 发明授权

US5133510A Column wire winding apparatus 失效
标题翻译：立柱线缠绕装置
公开(公告)号：US5133510A
公开(公告)日：1992-07-28
申请号：US523119
申请日：1990-05-14
申请人： Edgar A. Davis , David T. Swanson
发明人： Edgar A. Davis , David T. Swanson
IPC分类号： B65H81/08 , E04G21/12 , E04G23/02
CPC分类号： E04G21/12 , B65H81/08 , E04G23/0218
摘要： A column such as a concrete bridge or overpass column is reinforced by transverse post tensioning a steel wire around the length of the column. Apparatus for winding the wire around the column includes a first support frame which is attached to the column and a second support frame which is movably positioned around the column. The second support frame is movably supported on the first support frame whereby the second support frame can move axially along the length of the column. The second support frame includes a fixed inner ring, and a rotatable outer ring engages the inner ring in a tongue-in-groove fashion. The outer ring supports a spool of wire and a tensioning spool, and a drive motor and pinion mounted to the fixed inner ring drives the outer ring gear and rotates the spool of wire around the column as the second support frame is translated axially along a length of the column. The first support frame is repeatedly moved along the column until the full length of the column has been wound with wire.
摘要翻译：一列如混凝土桥或立交柱，通过横向柱拉伸围绕柱长度的钢丝来增强。用于围绕柱缠绕线的装置包括附接到柱的第一支撑框架和可移动地围绕柱定位的第二支撑框架。第二支撑框架可移动地支撑在第一支撑框架上，由此第二支撑框架可以沿柱的长度轴向移动。第二支撑框架包括固定的内环，并且可旋转的外环以舌形槽接合内圈。外环支撑线轴和张紧卷轴，并且安装到固定内环的驱动马达和小齿轮驱动外圈齿轮，并且当第二支撑框架沿着长度方向沿轴向平移时，线圈的线轴围绕柱旋转的列。第一支撑框架沿着柱重复移动，直到柱的全长已经用线缠绕。

4. 发明授权

US4621943A Continuous prestressed concrete and method 失效
标题翻译：连续预应力混凝土及方法
公开(公告)号：US4621943A
公开(公告)日：1986-11-11
申请号：US658542
申请日：1984-10-09
申请人： David T. Swanson
发明人： David T. Swanson
IPC分类号： E01C7/16 , E01C11/20 , E01C5/10
CPC分类号： E01C7/16 , E01C11/20
摘要： Disclosed is a method and apparatus for forming continuous slabs having parallel longitudinally extending post-tensioned tendons therein.
摘要翻译：公开了一种在其中形成具有平行纵向延伸的后张拉筋的连续板坯的方法和装置。

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