Plasma-arc torch interlock with pressure sensing
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United States of America Patent
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-
May 5, 1987
Grant Date -
N/A
app pub date -
Nov 4, 1985
filing date -
Nov 4, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A plasma-arc torch interlock with pressure sensing is provided. A pressure sensor is included within the conduit supplying working fluid to a plasma-arc torch. By sensing a decrease in pressure of the working fluid which is caused by a necessary part being not in place, a control circuit shuts off power to the torch. In a second embodiment, two conduits are provided to supply fluid to the torch. One conduit supplies the primary working fluid to create the plasma-arc while the other supplies secondary flow for purposes of cooling.
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