Title: Composition for forming thermo-particulating coating which protects electrical apparatus

Abstract: A composition is disclosed of malonic acid, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a fluid stream. The solvent in the composition is evaporated to produce a thermo-particulating coating. When the electrical apparatus overheats the malonic acid in the coating forms particles in the fluid stream which are detected by a monitor.

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Inventors: Smith, James D. B. (Turtle Creek, PA, US)
Phillips, David C. (Pittsburgh, PA, US)

Application Number: 390284
Filing Date: 1973-08-21
Publication_date: 1976-08-10
Assignee: Westinghouse Electric Corporation (Pittsburgh, PA)
Primary Class(es): 436/7 73/28.01, 340/627, 422/83, 422/108
Other Classes:
US Patent Ref:

2928791	Mar, 1960	Loconti	252/408.
3316197	Apr, 1967	Hil, Jr.	260/29.
3329022	Jul, 1967	Feldman	73/339.
3427880	Feb, 1969	Grobel et al.	73/339.
3573460	Apr, 1971	Skala	313/54.
3807218	Apr, 1974	Carson et al.	73/339.
3845662	Nov, 1974	Surgina et al.	252/408.

Other Refs:
Primary Examiner: Padgett, Benjamin R.
Assistant Examiner: Gron, T. S.
Attorney: Fuerle; R. D.