The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 11, 2001
Filed:
Nov. 10, 1998
Brian L. Cunkelman, Blairsville, PA (US);
Jennifer L. Ray, Ruffsdale, PA (US);
Westinghouse Air Brake Company, Wilmerding, PA (US);
Abstract
A temperature indicator for providing a visual indication that a pressurized fluid has exceeded a specified temperature. Such pressurized fluid being contained within a container bounded by a container wall. Such container wall being provided with an aperture for mounting of the temperature indicator therein such that the temperature indicator protrudes through such aperture and into such pressurized fluid contained within such container. The temperature indicator includes a housing member, a cavity provided in the housing member and a bore extending from an interior portion of the cavity to an exterior surface of the housing member. The exterior surface of the housing member is visible from a position external of such container when the temperature indicator is mounted in such aperture such that the temperature indicator protrudes through such aperture and into such pressurized fluid contained within such container. The temperature indicator further includes a plunger member at least partially disposed within the cavity. The plunger member extends into the bore and a bonding agent bonds the plunger member to the housing member. The bonding agent being substantially exposed to such pressurized fluid contained within such container and the bonding agent being thermosensitive to substantially release the bonding of the plunger member to the housing member upon the bonding agent substantially exceeding the specified temperature.