Petroleum and synthetic grease thermoparticulating coating
AssigneeWestinghouse Electric Corp.
InventorsJames D. B. Smith, D. Colin Phillips, Kenneth W. Grossett
Life of this patent
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Abstract
A petroleum or synthetic grease is used to protect electrical apparatus from overheating. The grease is applied to a portion of an electrical apparatus which is exposed to a gas stream, particularly to portions subjected to operating temperatures of about 100.degree. C. When the coated portion of the electrical apparatus overheats the grease forms particles in the gas stream which are detected by a monitor. The apparatus can then be shut down or its load reduced.
Claims11
A method of protecting electrical apparatus from damage due to overheating, said apparatus including a gas stream and a monitor for detecting particles in said gas stream and for emitting a signal when said particles are detected, comprising applying to said electrical apparatus at positions exposed to said gas stream a thermoparticulating grease selected from the group consisting of synthetic straight chain hydrocarbons, synthetic diesters, and mixtures thereof and detecting the particles in said gas stream formed from thermoparticulation of said grease.
A thermal detection system for electrical apparatus cooled by a gas stream, comprising a thermoparticulating coating on a portion of said electrical apparatus exposed to said gas stream and a monitor for detecting the presence of particles formed from said thermoparticulating coating in said gas stream, said thermoparticulating coating comprising a thermoparticulating grease selected from the group consisting of synthetic straight chain hydrocarbons, synthetic diesters, and mixtures thereof.
Dependencies are inferred from the claim text.