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:
Feb. 23, 1982
Filed:
Aug. 14, 1980
Robert C Miller, Penn Hills, PA (US);
Frederick M Ryan, Loyalhanna Township, Westmoreland County, PA (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
A temperature detection apparatus is provided which comprises at least one light source, light guide and light detector. The light guide is placed in thermal communication with target areas whose temperatures are of interest, particularly for application in electromechanical apparatus where the target area whose temperature is of interest is relatively inaccessible and/or an electrical temperature probe would encounter interference. The light guide itself indicates temperature changes since it only transmits light when the temperature-dependent refractive index of its core exceeds that of its cladding.