Plasma transfer welded arc torch
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United States of America Patent
Stats
-
Jun 9, 1987
Grant Date -
N/A
app pub date -
Mar 21, 1985
filing date -
Mar 21, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A plasma arc torch is disclosed having an upper body of a non-conductive material supporting an electrode and a lower body of a conductive material supporting a nozzle through which an arc is formed between the electrode and a work piece. Means is provided for blowing a mixture of inert gas and a fusible powder through a passageway formed in said lower body and through passages formed in said nozzle onto the work piece. A liquid coolant is circulated through a reservoir formed in the lower body, and an inert gas is discharged through an opening that circumvallates the nozzle. Both the nozzle and the torch as a whole are uniquely constructed to avoid many of the problems caused by the use of insulators and fluid seals. In addition, the novelty of construction enhances performance.
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