Importance

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Abstract

An overtravel indicator for a piston received in a cylinder having an end wall toward which the piston moves includes an elongated indicator rod slidably extending through the end wall. The rod has an armed position extending inwardly of the end wall and an operated position extending outwardly of the end wall. An electrically operated indicator is positioned in a circuit connected for completion through the indicator rod and end wall when the rod is in its operated position. In the armed position of the rod, dielectric material surrounds that portion of the rod extending through the end wall for opening the electric circuit. In the operated position of the rod, its outer surface engages the end wall for completing the electric circuit.

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First Claim