Two-point spring loaded thermocouple probe with replaceable tips

A thermocouple probe device comprising:

• (a) a housing;
• (b) two, spaced apart, detachably secured pointed members made of dissimilar materials are rotatably secured respectively to two thermocouple elements slidably extending from respective bores in one end of said housing;
• (c) spring means engaging said elements and housing such that the members and elements are individually and resiliently mounted in said bores in said housing;
• (d) elongated slots provided in said housing;
• and
• (e) screw means extending through said elements and into said slots to prevent said elements from rotating whereby each of said pointed members can be selectively removed from said thermocouple elements by rotation of one of said respective pointed members while said screw means in said slot prevents said element from rotating.

A probe member for use in temperature measurement comprising:

• (a) a housing body having a pair of parallel spaced apart bores;
• (b) a sleeve member mounted in a first end in each of said bores;
• (c) a thermocouple element partially received in at least one of said bores of said sleeve member and extending through and beyond said body;
• (d) collar means on said thermocouple element;
• (e) bias means received at one end in said sleeve member and engaging said collar means to resiliently mount said thermocouple within said body against an end cap secured to a second end of said bores in said body;
• (f) a detachable end portion on a portion of said thermocouple element extending beyond said body to facilitate surface layer penetration of the object whose temperature is to be measured;
• and
• (g) means to inhibit rotation of said thermocouple element in said body to facilitate selective removal of said end portion from said thermocouple element.