Patent Number: 6,305,313

Title: Pop-up temperature indicator for use in a 3-CD type air compressor or similar device

Abstract: A temperature indicator for indicating when a specified temperature has been exceeded in a fluid flow through a conduit. Such conduit having an aperture and the temperature indicator being mountable in such aperture and engagable therewith such that the temperature indicator projects through such aperture and into such fluid flow in such conduit. The temperature indicator includes a housing which substantially encloses an internal chamber and has a bore extending from the internal chamber to an external surface of the housing. An indicator member is disposed, at least in part, within the internal chamber and extends into the bore. A biasing element is disposed within the internal chamber and exerts a biasing force between the housing and the indicator member and urges the indicator member toward the bore. A bonding agent forms a bond between the indicator member and the housing to thereby restrain the indicator member from movement toward the bore under action of the biasing element. The bonding agent is thermosensitive to substantially release the bond between the indicator member and the housing when a temperature of the bonding agent substantially reaches the specified temperature.

Inventors: Cunkelman; Brian L. (Blairsville, PA), Ray; Jennifer L. (Ruffsdale, PA)

Assignee: Westinghouse Air Brake Company

International Classification: G01K 11/00 (20060101); G01K 11/06 (20060101); G01K 001/16 (); G01K 001/14 ()

Expiration Date: 10/23/2018