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. 25, 1979
Filed:
Sep. 23, 1976
Applicant:
Inventors:
James D Smith, Wilkins Township, Allegheney Co., PA (US);
Joseph F Meier, Export, PA (US);
David C Phillips, Penn Hills Township, Allegheny Co., PA (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; G01K / ; G01K / ; C08K / ;
U.S. Cl.
CPC ...
7333 / ; 2323 / ; 252408 ; 260 / ; 260 / ; 422 90 ;
Abstract
A composition is disclosed of an N-thiophthalimide, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a gas stream. The solvent in the composition is evaporated to produce a thermoparticulating coating. When the electrical apparatus overheats the N-thiophthalimide in the coating forms particles in the gas stream which are detected by a monitor.