Electrode for plasma torch with novel assembly method and enhanced heat transfer

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8779323
APP PUB NO 20140103017A1
SERIAL NO

14108816

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Abstract

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Embodiments of the present invention are related to an electrode for a plasma arc torch, the electrode comprising a generally tubular outer wall, an end wall, and a protrusion. The end wall is joined to a distal end of the outer wall and supports an emissive element in a generally central region. The protrusion extends from the generally central region of the end wall and is configured to connect with an electrode holder by a releasable connection, wherein the protrusion is configured such that at least one coolant passage forms between the protrusion and the electrode holder when the electrode is connected with the electrode holder. In some embodiments, the releasable connection comprises a threaded connection, wherein the protrusion is threaded to releasably connect to a threaded coolant tube of the electrode holder. In other embodiments, at least one coolant passage is defined by the threaded connection.

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Patent Owner(s)

Patent OwnerAddress
THE ESAB GROUP INCANNAPOLIS JUNCTION MD 20701

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ashtekar, Koustubh D Florence, US 5 38
Diehl, Gregory W Florence, US 6 112
Griffin, David C Florence, US 19 217
Wiersema, Dale T Florence, US 12 99

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