Patent ID: 6352362
Filing Date: 2002-03-05
Classification: G01K,Y10S

Abstract:
A method of preventing leakage of a fluid along and through an insulating jacket of a thermocouple comprising the steps of:a) attaching a plurality of lead wires to a thermocouple; b) adding a heat sensitive pseudo-wire to extend along the length of the plurality of lead wires; c) enclosing the lead wires and pseudo-wire inside an insulating jacket; d) locally heating axially spaced portions of said insulating jacket to a temperature at which said pseudo-wire melts and fuses with an interior surface of the insulating jacket, creating internally sealed areas, thereby preventing leakage through the insulating jacket when the thermocouple is exposed to a fluid and causing said insulating jacket to balloon outwardly in areas adjacent said axially spaced portions.