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公开(公告)号：USD501632S1
公开(公告)日：2005-02-08
申请号：US29175105
申请日：2003-01-30
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公开(公告)号：USD497373S1
公开(公告)日：2004-10-19
申请号：US29176770
申请日：2003-02-27
申请人： Roger W. Hewett , Jonathan Brasseur
设计人： Roger W. Hewett , Jonathan Brasseur
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公开(公告)号：US07326874B2
公开(公告)日：2008-02-05
申请号：US10899259
申请日：2004-07-26
IPC分类号： H05B1/02
CPC分类号： B23K10/00 , H05H1/34 , H05H2001/3457 , H05H2001/3478
摘要： Vented shield systems for plasma arc torches are provided that comprise a shield cup body defining a distal end portion, a vented retainer secured to the distal end portion of the shield cup body, and a shield cap secured to the vented retainer. The vented retainer defines at least one vent passageway that directs a flow of secondary gas inward toward the shield cap, and the vented shield system blocks at least a portion of molten metal from contacting components, such as a tip or nozzle, of the plasma arc torch. The shield cap may comprise a mechanized cap, a drag cap, a gouging cap, or a deflector cap, among others. Accordingly, various shield caps may be employed without removal or replacement of the vented retainer. The same vented retainer may be used throughout a variety of plasma arc torch applications.
摘要翻译： 提供了用于等离子体电弧炬的通风屏蔽系统，其包括限定远端部分的屏蔽杯体，固定到屏蔽杯体的远端部分的通气保持器和固定到通气保持器的屏蔽帽。 排气保持器限定至少一个排气通道，其将二次气体的流向内导向屏蔽罩，并且通气的屏蔽系统阻挡熔融金属的至少一部分与接触等离子弧的部件（例如尖端或喷嘴）接触 火炬。 屏蔽盖可以包括机械化盖，拖帽，气刨盖或偏转盖等。 因此，可以使用各种屏蔽盖而不移除或更换排气保持器。 在各种等离子弧焊枪应用中可以使用相同的通风保持器。
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公开(公告)号：USD511663S1
公开(公告)日：2005-11-22
申请号：US29175104
申请日：2003-01-30
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公开(公告)号：US06914211B2
公开(公告)日：2005-07-05
申请号：US10376688
申请日：2003-02-27
CPC分类号： B23K10/00 , H05H1/34 , H05H2001/3457 , H05H2001/3478
摘要： Vented shield systems for plasma arc torches are provided that comprise a shield cup body defining a distal end portion, a vented retainer secured to the distal end portion of the shield cup body, and a shield cap secured to the vented retainer. The vented retainer defines at least one vent passageway that directs a flow of secondary gas inward toward the shield cap, and the vented shield system blocks at least a portion of molten metal from contacting components, such as a tip or nozzle, of the plasma arc torch. The shield cap may comprise a mechanized cap, a drag cap, a gouging cap, or a deflector cap, among others. Accordingly, various shield caps may be employed without removal or replacement of the vented retainer. The same vented retainer may be used throughout a variety of plasma arc torch applications.
摘要翻译： 提供了用于等离子体电弧炬的通风屏蔽系统，其包括限定远端部分的屏蔽杯体，固定到屏蔽杯体的远端部分的通气保持器和固定到通气保持器的屏蔽帽。 排气保持器限定至少一个排气通道，其将二次气体的流向内导向屏蔽罩，并且通气的屏蔽系统阻挡熔融金属的至少一部分与接触等离子弧的部件（例如尖端或喷嘴）接触 火炬。 屏蔽帽可以包括机械化盖，拖帽，气刨盖或偏转盖等。 因此，可以使用各种屏蔽盖而不移除或更换排气保持器。 在各种等离子弧焊枪应用中可以使用相同的通风保持器。
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26.发明授权Low voltage electrical based parts-in-place (PIP) system for contact start torch 失效用于接触启动手电筒的低压电气部件就地（PIP）系统
公开(公告)号：US5961855A
公开(公告)日：1999-10-05
申请号：US14491
申请日：1998-01-28
申请人： Roger W. Hewett , Murray Michaels
发明人： Roger W. Hewett , Murray Michaels
CPC分类号： H05H1/36 , B23K10/00 , B23K9/0671 , H05H2001/3473 , H05H2001/3489
摘要： A detection system for a cutting torch for use in connection with a workpiece. The detection system has an electrode and a tip. A housing supporting the tip and the electrode provides relative movement therebetween and allows electrical contact between the tip and the electrode. A sensor circuit senses when the electrode and the tip are in electrical contact. The sensor circuit generates a switch control signal when the electrode and tip are in electrical contact. A power supply provides a first voltage and a second voltage such that a potential voltage difference is established between the electrode and the and/or workpiece. A magnitude of the first voltage is less than a magnitude of the second voltage. A first switch selectively provides the second voltage to the electrode in response to the switch control signal whereby the potential voltage difference between the electrode and the tip and/or workpiece corresponds to the second voltage when the switch control signal indicates that the electrode and tip are in electrical contact.
摘要翻译： 一种用于与工件结合使用的割炬检测系统。 检测系统具有电极和尖端。 支撑尖端和电极的壳体在它们之间提供相对运动，并允许尖端和电极之间的电接触。 传感器电路检测电极和尖端何时电接触。 当电极和尖端电接触时，传感器电路产生开关控制信号。 电源提供第一电压和第二电压，使得在电极和/或工件之间建立电势电压差。 第一电压的大小小于第二电压的幅度。 第一开关响应于开关控制信号而选择性地向电极提供第二电压，由此当开关控制信号指示电极和尖端是电极和尖端时，电极和尖端和/或工件之间的电势电压差对应于第二电压 电接触。
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公开(公告)号：US06881921B2
公开(公告)日：2005-04-19
申请号：US10443443
申请日：2003-05-22
CPC分类号： H05H1/34 , H05H2001/3442 , H05H2001/3489
摘要： A plasma arc torch has a threadless electrode-cathode locking assembly, a one-piece tip assembly, and a rotational contact starting mechanism. The cathode and electrode of the locking assembly are configured such that relative rotation of the electrode with respect to the cathode causes the electrode to move in an axial direction relative to the cathode for locking the electrode in fixed axial and rotational position with respect to the cathode. The inner wall of the one-piece tip assembly is configured to receive the forward end of the electrode in a non-contact position. Rotation of the electrode with respect to the tip causes an arcing formation on the electrode to contact an arcing chamber within the cavity. Rotation of the electrode away from the tip generatesa pilot arc in the arcing chamber.
摘要翻译： 等离子弧焊炬具有无螺纹电极 - 阴极锁定组件，单件式末端组件和旋转接触启动机构。 锁定组件的阴极和电极被构造成使得电极相对于阴极的相对旋转使得电极相对于阴极在轴向上移动，用于将电极相对于阴极锁定在固定的轴向和旋转位置 。 一体式末端组件的内壁构造成以非接触位置接收电极的前端。 电极相对于尖端的旋转导致电极上的电弧形成接触空腔内的电弧室。 电极远离尖端的旋转在电弧室中产生导向电弧。
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公开(公告)号：US06670572B2
公开(公告)日：2003-12-30
申请号：US10090212
申请日：2002-03-04
IPC分类号： B23K1000
CPC分类号： H05H1/36 , H05H2001/3473
摘要： A solenoid control and safety circuit suitable for use in connection with contact start, plasma-arc torches. The system monitors a voltage to determine when to open an air control solenoid as part of a contact starting process. If a proper voltage is sensed, a gas solenoid is opened to allow airflow to separate the contact starting elements. The system also includes a circuit that monitors a gas pressure switch to determine whether sufficient pressure exists to separate the contact start elements after a contact start process has been initiated. The circuit removes power if it senses insufficient pressure. Also disclosed is a circuit that monitors a differential voltage between the electrode and the tip to determine if the elements remain in contact after airflow has been provided to the torch head.
摘要翻译： 电磁控制和安全电路，适用于接触起动，等离子弧焊炬。 系统监视电压，以确定何时打开空气控制电磁阀作为联系人启动过程的一部分。 如果检测到适当的电压，则打开气体螺线管以允许气流分离接触起始元件。 该系统还包括监测气体压力开关的电路，以确定是否存在足够的压力以在触发启动过程开始之后分离触点启动元件。 如果检测到压力不足，电路就会断电。 还公开了一种电路，其监测电极和尖端之间的差分电压，以确定在气流被提供到割炬头之后元件是否保持接触。
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