Patent ID: 6109820
Filing Date: 2000-08-29
Classification: E01F

Abstract:
A flexible marker assembly comprising:a substantially flat marker having a lower end and being flexible in a first direction and a second direction adjacent to the lower end;a base having a longitudinal axis and slot for receiving the lower end of the marker and supporting the marker in a vertical position;a first convex arcuate longitudinal portion on a first side of said slot;a second convex arcuate longitudinal portion on a second side of said slot;the first arcuate portion being contoured to be contacted by said marker when said marker is bent to a horizontal position in a first direction to provide a radius of curvature for said marker, the second arcuate portion being contoured to be contacted by said marker when said marker is bent to a horizontal position in a second direction to provide a radius of curvature for said marker;a recess extending through the base, above a bottom of the base transverse to the longitudinal axis and intersecting the slot;an anchor plate extending in the recess, the anchor plate on the first and second sides of said slot and having an upward protruding tab that extends upwards in said slot alongside said marker;a channel formed in one of the longitudinal portions parallel with the longitudinal axis and intersecting the slot; anda fastener extending through said channel into engagement with said marker and said tab.