US 6,681,505 B1 · Snow plow barrier attachment

Abstract

A snow plow blade includes a selectively extendable barrier attachment. The barrier attachment includes a base pivotally secured to the plow blade and secured to one end of each of a number of flexible members that are also engaged by a retraction mechanism for the barrier attachment that is disposed on the blade. The retraction mechanism is used to automatically retract and extend the flexible members as the base is pivoted between a retracted position and a deployed position on the blade. In the deployed position, the flexible members form a wall that prevents snow collected or diverted by the plow blade from passing through the barrier attachment. The barrier attachment may also include a separate deployment mechanism that operates to move the base between the retracted and deployed positions, and a brace used to hold the barrier attachment in position when in the deployed position.

Claims39

Dependent claims

A snow plow comprising:

a) a concave blade adapted to be secured to a vehicle, the blade having a front surface and a rear surface and defining a top end, a bottom end and a pair of opposed sides joining the top and bottom ends;
b) a first barrier attachment secured to the blade, the first barrier attachment including:
1) a base pivotally secured to the blade;
2) a plurality of flexible members secured to the base at one end;
and
3) a first retraction mechanism secured to the blade adjacent the first barrier, the first retraction mechanism connected to the number of flexible members.

3 more elements

Dependencies are inferred from the claim text.

Snow plow barrier attachment

Life of this patent

Snow plow barrier attachment

Life of this patent

Abstract

Claims39