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1. 发明授权

US4152576A Low voltage welding circuit with non-conductive ground connector 失效
标题翻译：低压焊接电路与非导电接地连接器
公开(公告)号：US4152576A
公开(公告)日：1979-05-01
申请号：US790311
申请日：1977-04-25
申请人： Robert H. Blair
发明人： Robert H. Blair
IPC分类号： H01T4/08 , H02H3/14 , B23K9/10
CPC分类号： H01T4/08 , H02H3/14
摘要： A protective ground connector for establishing a direct ground connection in response to a fault voltage in a welding circuit. A pair of smooth-faced metal blocks are clamped in face-to-face relationship with each other with a relatively thin shim of electric insulating material clamped between the opposed faces of the blocks. One of the blocks is electrically connected to a circuit to be monitored, the other block is electrically connected to ground. The electrical characteristics of the shim are such as to electrically insulate the two blocks from each other in the face of normal circuit voltages and to break down in response to a fault voltage in the monitored circuit to thereby establish a direct ground connection.
摘要翻译：一种用于响应于焊接电路中的故障电压建立直接接地连接的保护接地连接器。一对平滑的金属块以彼此面对面的关系夹紧，其中相对薄的电绝缘材料垫片夹在块的相对面之间。其中一个块电连接到要监视的电路，另一个电路与地电连接。垫片的电气特性使得在面对正常电路电压的情况下使两个块彼此电绝缘，并且响应于所监视的电路中的故障电压而分解，从而建立直接接地连接。

2. 发明授权

US4132880A Seam welding method and apparatus 失效
标题翻译：接缝焊接方法及装置
公开(公告)号：US4132880A
公开(公告)日：1979-01-02
申请号：US697040
申请日：1976-07-17
申请人： Robert H. Blair
发明人： Robert H. Blair
IPC分类号： B23K11/06 , B23K11/087 , B23K11/25
CPC分类号： B23K11/251 , B23K11/06 , B23K11/087
摘要： A high speed seam welding system wherein single phase alternating current welding pulses are applied to electrode mechanism during only a less than maximum amplitude fractional portion of the wave form representing each successive current half cycle, and the current is substantially cut off between current applications to permit cooling. The relative seam welding movement of the electrode mechanism and the material to be seam welded is coordinated with the duration of the welding and cooling periods to more rapidly form a line of uniform weld nuggets. The system may also be operated at more conventional welding speeds to weld relatively heavy gauge materials.
摘要翻译：一种高速缝焊系统，其中单相交流焊接脉冲仅在表示每个连续的当前半周期的波形的小于最大振幅小数部分内施加到电极机构，并且电流在当前应用之间基本上被切断以允许冷却。电极机构和待焊接的材料的相对缝焊运动在焊接和冷却时段的持续时间内协调，以更快速地形成一排均匀的焊接块。该系统还可以以更常规的焊接速度操作以焊接相对较重的规格材料。

3. 发明授权

US4099044A Welding apparatus 失效
标题翻译：焊接设备
公开(公告)号：US4099044A
公开(公告)日：1978-07-04
申请号：US731526
申请日：1976-10-12
申请人： Robert H. Blair , Donald J. Janiske
发明人： Robert H. Blair , Donald J. Janiske
IPC分类号： B23K11/06
CPC分类号： B23K11/061
摘要： Resistance welding apparatus for simultaneously welding spaced generally parallel seams in sheet metal workpieces, as for example joining a pair of side panels to the back panel of a refrigerator cabinet. The panels are clamped upon a support table with their edges to be welded disposed in overlapping relationship. Support members of high electrical conductivity engage the underside of the clamped panels along and adjacent to the overlapped edge portions of the panels. A movable overhead carriage supports a pair of rotatable disc electrodes which are positioned to roll along the overlapped edge portions of the panels in opposed relationship to the underlying support members. Also mounted on the carriage are a pair of highly conductive shoes which roll along the central panel closely adjacent the respective electrodes. A highly conductive shaft electrically connects the shoes to each other to establish a confined low resistance electrical path for welding current which bridges the space in the central panel between the two seams to minimize current dissipation within the panel and the consequent power loss.

4. 发明授权

US4322598A Method for forming a conduit extending through and beyond opposite sides of a housing wall 失效
标题翻译：用于形成延伸穿过壳体壁的相对侧并且超出壳体壁的相对侧的导管的方法
公开(公告)号：US4322598A
公开(公告)日：1982-03-30
申请号：US206057
申请日：1980-11-12
申请人： Robert H. Blair
发明人： Robert H. Blair
IPC分类号： B23K11/093 , F16L5/02 , B23K11/02 , B23K11/32
CPC分类号： B23K11/0935 , F16L5/022
摘要： A method for forming a conduit or flow passage extending through and beyond opposite sides of a housing wall. A pair of tubes constituting the external portions of the conduit have radially projecting peripheral flanges formed at their ends. The flanges are placed in face-to-face engagement with flat surfaces on opposite sides of the wall in coaxial alignment with a bore through the wall. The flanges are then pressed against the wall by tubular welding electrodes connected in series in a welding circuit and are simultaneously welded to the wall.
摘要翻译：一种用于形成延伸穿过壳体壁的相对侧面的导管或流动通道的方法。构成导管的外部的一对管在其端部形成有径向突出的周边凸缘。凸缘与壁的相对侧上的平坦表面面对面接合，与穿过壁的孔同轴对准。然后通过在焊接电路中串联连接的管状焊接电极将凸缘压靠在壁上并同时焊接到壁上。

5. 发明授权

US4079223A Electrode system for spot welding aluminum and other difficult-to-weld materials 失效
标题翻译：用于点焊铝和其他难焊接材料的电极系统
公开(公告)号：US4079223A
公开(公告)日：1978-03-14
申请号：US712372
申请日：1976-08-09
申请人： Sanford L. Lee , Robert H. Blair , Clifford H. Guenther
发明人： Sanford L. Lee , Robert H. Blair , Clifford H. Guenther
IPC分类号： B23K11/30 , B23K11/06 , B23K11/10
CPC分类号： B23K11/30
摘要： An electrode system for spot welding difficult-to-weld materials, such as aluminum, wherein a pair of spaced apart electrodes, one of which is a roller, clamp the overlapped strips of material to be spot welded. Mechanism moves the roller electrode toward and away from the other electrode, and other means is operated responsively to this movement for indexing the roller electrode incrementally circumferentially to successively present a new surface to the work held between the electrodes. A control circuit applies DC power to the electrodes such that the roller mentioned has the positive polarity and the other electrode the negative polarity.
摘要翻译：用于点焊难以焊接的材料（例如铝）的电极系统，其中一对间隔开的电极（其中一个是辊）夹紧要重点焊接的重叠材料条。机构使辊电极朝向和远离另一个电极移动，并且其他装置响应于该运动而被运行，用于沿圆周递增地分度滚子电极，以向保持在电极之间的工件呈现新的表面。控制电路向电极施加直流电力，使得所提到的辊具有正极性，而另一个电极为负极性。

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