Patent ID: 6050147
Filing Date: 2000-04-18
Classification: G01L

Abstract:
A pressure sensor assembly for a sensor element having a stainless steel body in contact with a pressure to be sensed, the assembly comprising:a ring member formed of a metal other than stainless steel and having a central cavity and a flat-sided perimeter engageable by a tool during installation and removal of said sensor assembly; and a radially inwardly extending flange partially enclosing said cavity and defining a central opening; anda stud member formed of stainless steel and having a radially outwardly extending flange at one end that received and secured within the central cavity of said ring member and seated on the radially inwardly extending flange of said ring member, and a threaded peripheral surface extending axially out of said ring member through said central opening for attachment of said sensor assembly to a pressure vessel, the radially outwardly extending flange of said stud member is stepped to define a first dimension corresponding to said central opening of said ring member and a second dimension corresponding to said central cavity of said ring member, said stud member having a central axial bore defining a passage coupling first and second axial ends of said stud member;wherein the stainless steel body of the sensor element is mounted on and welded to the one end of said stainless steel stud member about said central axial bore, enclosing said sensor element within the central cavity of said ring member.