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Temperature sensor with improved thermal barrier and gas seal between the probe and housing

United States Patent

5,743,646
April 28, 1998
View the Complete Patent at the US Patent & Trademark Office
A temperature sensor comprising: a hollow tube with a first end and a second end, wherein the second end is closed sealing a cavity within the tube from an environment outside of the tube and wherein the first end has an exterior cylindrical surface; a temperature responsive sensing element within the tube proximate to the second end; a glass cylinder having an inner cylindrical surface in sealing engagement with the exterior cylindrical surface of the first end of the tube; and a sensor housing having an inner cylindrical cavity bounded by an inner cylindrical wall, wherein an outer cylindrical surface of the glass cylinder is sealingly engaged with the inner cylindrical wall.
O'Connell; David Peter (Canfield, OH), Sumner; Randall Christian (New Wilmington, PA)
General Motors Corporation (Detroit, MI)
08/ 675,312
July 1, 1996
The invention herein described was made in the course of work under a contract or subcontract thereunder with the Department of Energy. The Government of the United States of America has rights in this invention pursuant to Contract No. DE-AC0290CH10435 awarded by the U.S. Department of Energy.