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AssigneeThermal Dynamics Corporation
InventorsJoseph P. Jones, Kevin D. Horner-Richardson, Shiyu Chen, Roger W. Hewett
Estimating the term…
A contact start plasma arc torch is provided that comprises an electrode, a tip, and an initiator that is resiliently biased into contact with the tip, the initiator being movable against the resilient bias to separate from the tip and establish a pilot arc between the initiator and the tip. The initiator is disposed within a start cartridge, which preferably comprises a coil spring that biases the initiator into contact with the tip. The plasma arc torch further comprises a plurality of head vent holes to vent gas from within the start cartridge during operation of the torch. Additionally, the tip defines a plurality of swirl holes and secondary gas holes to generate and control a plasma stream that is subsequently blown from a central exit orifice in the tip.
A plasma arc torch comprising:
A plasma arc torch comprising:
A start cartridge for use in initiating a pilot arc in a plasma arc torch comprising:
A start cartridge for use in initiating a pilot arc in a plasma arc torch comprising:
A start cartridge for use in initiating a pilot arc in a plasma arc torch comprising:
An initiator for initiating a pilot arc in a plasma arc torch, the initiator being movable against a resilient bias to establish a pilot arc between the initiator and a tip within the plasma arc torch.
An initiator for initiating a pilot arc in a plasma arc torch, the initiator being movable against a resilient bias to establish a pilot arc between the initiator and a tip within the plasma arc torch, the initiator comprising:
A plasma arc torch head for use with a fixed electrode, a fixed tip, and a source of gas and electric power for initiating a pilot arc comprising:
A plasma arc torch comprising:
A plasma arc torch comprising:
A method of initiating a pilot arc in a plasma arc torch, the method comprising the steps of:
A method of venting gas from a plasma arc torch comprising a fixed electrode and a fixed tip, the method comprising the steps of:
A method of initiating a pilot arc in a plasma arc torch, the method comprising the steps of:
Dependencies are inferred from the claim text.