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1. 发明授权

US5343016A Microprocessor controlled welding apparatus 失效
标题翻译：微处理器控制焊接设备
公开(公告)号：US5343016A
公开(公告)日：1994-08-30
申请号：US950193
申请日：1992-09-22
申请人： Clint A. Davis , Melvin P. Trail
发明人： Clint A. Davis , Melvin P. Trail
IPC分类号： B23K9/067 , B23K9/073 , B23K9/095
CPC分类号： B23K9/073 , B23K9/067
摘要： A microprocessor-controlled are welding power supply is disclosed. A silicon controlled rectifier ("SCR") bank is used to generate a direct current arc welding current under program control. Positive synchronization is provided by the microprocessor using a phase locked loop and a polarity detector, so that the gating signals applied to the SCRs are correctly timed. Optimum tradeoffs between hardware and software are accomplished by using look up tables to store correction factors that can be quickly accessed during execution, and by using timers as smart interface chips to fire the SCRs at the same angle during each cycle until changed or updated by the microprocessor. The arc welding power supply is capable of operating in a constant current or constant voltage mode without rewiring the circuit.
摘要翻译：公开了一种微处理器控制的焊接电源。可控硅整流器（“SCR”）组用于在程序控制下产生直流电弧焊电流。微处理器使用锁相环和极性检测器提供正同步，使得施加到SCR的门控信号被正确定时。通过使用查找表来存储在执行期间可以快速访问的校正因子，并且通过使用定时器作为智能接口芯片，在每个周期期间以相同的角度触发SCR，直到由微处理器。电弧焊电源能够以恒定电流或恒压模式工作，而不需要重新布线电路。

2. 发明授权

US4561059A Microprocessor controlled welding apparatus 失效
标题翻译：微处理器控制焊接设备
公开(公告)号：US4561059A
公开(公告)日：1985-12-24
申请号：US469519
申请日：1983-02-24
申请人： Clint A. Davis , Melvin P. Trail
发明人： Clint A. Davis , Melvin P. Trail
IPC分类号： B23K9/067 , B23K9/073 , G06F15/46 , B23K9/20
CPC分类号： B23K9/073 , B23K9/067
摘要： A microprocessor-controlled arc welding power supply is disclosed. A silicon controlled rectifier ("SCR") bank is used to generate a direct current arc welding current under program control. Positive sychronization is provided by the microprocessor using a phase locked loop and a polarity detector, so that the gating signals applied to the SCRs are correctly timed. Optimum tradeoffs between hardware and software are accomplished by using look up tables to store correction factors that can be quickly accessed during execution, and by using timers as smart interface chips to fire the SCRs at the same angle during each cycle until changed or updated by the microprocessor. The arc welding power supply is capable of operating in a constant current or constant voltage mode without rewiring the circuit.
摘要翻译：公开了一种微处理器控制的电弧焊电源。可控硅整流器（“SCR”）组用于在程序控制下产生直流电弧焊电流。微处理器使用锁相环和极性检测器提供正同步，使得施加到SCR的门控信号正确定时。通过使用查找表来存储在执行期间可以快速访问的校正因子，并且通过使用定时器作为智能接口芯片，在每个周期期间以相同的角度触发SCR，直到由微处理器。电弧焊电源能够以恒定电流或恒压模式工作，而不需要重新布线电路。

3. 发明授权

US4133470A Method and apparatus for fabricating pipe centralizer or the like 失效
标题翻译：管道扶正器等的制造方法和装置
公开(公告)号：US4133470A
公开(公告)日：1979-01-09
申请号：US808900
申请日：1977-06-22
申请人： Melvin P. Trail
发明人： Melvin P. Trail
IPC分类号： B23K9/00 , B23K37/047 , B23K37/053 , B23K37/04
CPC分类号： B23K37/053
摘要： A method and apparatus for fabricating pipe centralizers or the like including supporting the centralizer end collars upon a pair of axially aligned spaced apart mandrels, supporting the bows of the centralizers circumferentially about the end collars, simultaneously welding each end of one of the bows to each collar, rotating the mandrels with the collars and bows supported thereon about the axes thereof, and simultaneously welding each end of another of the bows to the collars. The mandrels include a pair of collar clamps for retaining each collar against a collar shoulder, and a plurality of pivotally mounted arms for holding the bows in contact with the collar. At least one of the mandrels is movable axially relative to the other so that centralizers of different lengths may be fabricated, and so that completed centralizers may be removed from the mandrels. The welding is accomplished by a pair of welding heads supported adjacent the mandrels and movable radially and axially relative to the mandrels to perform fillet welds along the edges of the bows.
摘要翻译：一种用于制造管道集中器等的方法和装置，包括将一对轴向对齐的间隔开的心轴支撑在中心器端部套环上，将心轴围绕端轴环周向支撑，同时将其中一个弓的每个端部焊接到每个轴环旋转心轴，其中套环和弓围绕其轴线支撑，并且同时将另一个弓的每个端部焊接到套环上。心轴包括一对用于将每个颈圈保持抵靠颈圈肩部的衣领夹具，以及多个枢轴安装的臂，用于保持弓形物与颈圈接触。心轴中的至少一个相对于另一个可轴向移动，使得可以制造不同长度的扶正器，并且使得完成的扶正器可以从心轴移除。焊接是通过一对焊接头来实现的，该焊接头相对于心轴支撑并相对于心轴径向和轴向地移动，以沿着弓的边缘进行角焊。

4. 发明授权

US5149940A Method for controlling and synchronizing a welding power supply 失效
标题翻译：控制和同步焊接电源的方法
公开(公告)号：US5149940A
公开(公告)日：1992-09-22
申请号：US256401
申请日：1988-10-18
申请人： Clint A. Davis , Melvin P. Trail
发明人： Clint A. Davis , Melvin P. Trail
IPC分类号： B23K9/067 , B23K9/073
CPC分类号： B23K9/073 , B23K9/067
摘要： A microprocessor-controlled arc welding power supply is disclosed. An silicon controlled rectifier ("SCR") bank is used to generate a direct current arc welding current under program control. Positive sychronization is provided by the microprocessor using a phase locked loop and a polarity detector, so that the gating signals applied to the SCRs are correctly timed. Optimum tradeoffs between hardware and software are accomplished by using look up tables to store correction factors that can be quickly accessed during execution, and by using timers as smart interface chips to fire the SCRs at the same angle during each cycle until changed or updated by the microprocessor. The arc welding power supply is capable of operating in a constant current or constant voltage mode without rewiring the circuit.
摘要翻译：公开了一种微处理器控制的电弧焊电源。可控硅整流器（“SCR”）组用于在程序控制下产生直流电弧焊电流。微处理器使用锁相环和极性检测器提供正同步，使得施加到SCR的门控信号正确定时。通过使用查找表来存储在执行期间可以快速访问的校正因子，并且通过使用定时器作为智能接口芯片，在每个周期期间以相同的角度触发SCR，直到由微处理器。电弧焊电源能够以恒定电流或恒压模式工作，而不需要重新布线电路。

5. 发明授权

US4821202A Apparatus microprocessor controlled welding 失效
标题翻译：仪器微处理器控制焊接
公开(公告)号：US4821202A
公开(公告)日：1989-04-11
申请号：US879318
申请日：1986-06-27
申请人： Clint A. Davis , Melvin P. Trail
发明人： Clint A. Davis , Melvin P. Trail
IPC分类号： B23K9/067 , B23K9/073 , G06F15/46 , B23K9/10
CPC分类号： B23K9/073 , B23K9/067
摘要： A microprocessor-controlled arc welding power supply. A silicon controlled rectifier ("SCR") bank is used to generate a direct current arc welding current under program control. Positive synchronization is provided by the microprocessor using a phase locked loop and a polarity detector, so that the gating signals applied to the SCRs are correctly timed. Optimum tradeoffs between hardware and software are accomplished by using look up tables to store correction factors that can be quickly accessed during execution, and by using timers as smart interface chips to fire the SCRs at the same angle during each cycle until changed or updated by the microprocessor. The arc welding power supply is capable of operating in a constant current or constant voltage mode without rewiring the circuit.
摘要翻译：一种微处理器控制的电弧焊电源。可控硅整流器（“SCR”）组用于在程序控制下产生直流电弧焊电流。微处理器使用锁相环和极性检测器提供正同步，使得施加到SCR的门控信号被正确定时。通过使用查找表来存储在执行期间可以快速访问的校正因子，并且通过使用定时器作为智能接口芯片，在每个周期期间以相同的角度触发SCR，直到由微处理器。电弧焊电源能够以恒定电流或恒压模式工作，而不需要重新布线电路。

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