Signals and indicators – Indicators – By location
Patent
1997-12-19
2000-08-01
Hirshfeld, Andrew H.
Signals and indicators
Indicators
By location
116173, 52166, G01D 2100
Patent
active
060950811
ABSTRACT:
An underground utility location marker including an elongated casing inserted into the ground above an underground utility line, and a rod received in the casing. The rod is selectively movable between a lowered storage position and a raised warning position where it can be seen by a person preparing to excavate in the area. A directional arrow and a distance indicator are carried on a ground flange attached to the top of the casing to show the direction and distance to the next adjacent marker. Also, the rod is of a distinctive color indicating a specific utility.
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