Stimsonite Corporation

Richard M Steere

Sidney A Heenan

Robert M Flanagan

Henry R Krepel

A low-profile housing and lens assembly system for use in a pavement marker. The housing is generally shell like and has a recess for accommodating a retroreflective lens element. The housing is provided with means defining a flat base for providing improved adhesion of the marker to the pavement.

Pavement marker

A low-profile snowplowable pavement marker is disclosed including a base member and a retroreflector. The base member has two arcuate-bottom keel members interconnected by a support member. The upper surfaces of the keel members define inclined ramps. The spacing of inner surfaces of the ramps allows retroreflectance of oncoming light while accommodating larger plow blade angles encountered in higher speed plowing. The support member has a central planar support surface for carrying the retroreflector and upwardly facing curved top surfaces providing relief in the base member between the ramps and in front of the retroreflector to allow tires of approaching vehicles to wipe the lens assembly. The housing of the retroreflector is molded from long-glass-fiber-reinforced composite thermoplastic material with a recess for accommodating a retroreflective lens element of a different thermoplastic material.

Growing community of inventors

Itasca, IL, United States of America

Richard M Steere