Patent ID: 9528234
Filing Date: 2016-12-27
CPC Classification: E01H,E02F

Claim Text:
1. A front retracting plow comprising a vehicle mount for mounting the plow ahead of a tractor vehicle, a plow frame including an overlying platform releasably mounted to the vehicle mount, a stationary intermediate blade pivotally mounted to said platform and at least one pair of opposite first and second lateral blades, slidably mounted to said platform along sliding grooves therein, means for mounting said intermediate blade to said lateral blades for non-translational relative movement of each one of said first and second lateral blades relative to said intermediate blade for travel in independently controlled fore and aft paths parallel to each other, and a pivotal linkage arm assembly interconnecting said at least one pair of lateral blades to said intermediate blade and for continuous sliding operational motion of said lateral blades parallel to one another in opposite directions between an intermediate position, where all lateral blades and intermediate blade are transversely aligned, a first limit position where said first lateral blade of each pair of said lateral blades is at a rearwardmost limit position and said second lateral blade of each pair of said lateral blades is at a frontwardmost limit position, and a second limit position, where said first lateral blade of each pair of said lateral blades is at a frontwardmost limit position and said other of each pair of said lateral blades is at a rearwardmost limit position, wherein a laterally continuous forward ground scraping action is achieved between all said lateral blades and said intermediate blade.