Push-pull cable with color change temperature self-indicating me

Signals and indicators – Indicators – Temperature responsive or compensating means

Patent

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Details

57223, 174103, 374161, G01K 1100, H05B 310

Patent

active

044717113

ABSTRACT:
A push-pull cable assembly for use in high temperature environments, particularly for use with engines generating high temperatures in application, has a cable conduit with a natural nylon outer tubular element and a nylon inner tubular element helically wrapped by wires. Nylon 66 is preferred. A chromatic indicator is included in the outer element. Exposure to the elevated temperature environment for a long period of time causes the conduit to change from its original green color to dark brown as failure of the assembly becomes imminent. The cable assembly is replaced when the conduit turns dark tan or brown.

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