Centricut, Inc.

Richard George Ellis

E Smith Reed, Jr

A mounting device for a plasma arc torch which enables the plasma arc torch body to withstand impacts from objects or forces in its working environment which would otherwise require the entire plasma arc torch to be replaced; said device has a designed failure location, which thereby allows the user to replace only the failed mounting device instead of the entire plasma arc torch. An enhanced form of the invention includes a flexible mounting device that enables the plasma arc torch body to withstand impacts from objects or forces in its working environment and then return to its original position before failing at the designed failure location.

Mounting scheme for a plasma arc torch

A plasma arc torch for cutting metal with the heat of a constricted arc and removing the molten material with a jet of hot ionized gases comprises a nozzle assembly in the torch includes a nozzle base and an insulator with a constricting orifice. The base and insulator are spaced from each other to form a flow path for a coolant such as water. An interference fit between the base and the insulator exerts a radially outward force on the insulator to enable the base and insulator to be assembled and disassembled with a pressing or pulling force in the approximate range of 0.3 to 16.0 pounds.

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West Lebanon, NH, United States of America

Richard George Ellis