Patent ID: 7470089

Claim:
A leading edge section adapted to be connected to a plow, the leading edge section having a top and a bottom, the leading edge section comprising: (a) a front edge; (b) a side of the leading edge section opposite the front edge including a rear surface, said rear surface including a surface that is the farthest from the front edge; (c) a left sidewall and a right sidewall each respectively extending from the front edge to the rear surface; (d) a plow operatively having a front portion thereof attached to the leading edge section adjacent the rear surface of the leading edge section; (e) the front portion of the plow having a front surface thereon which is spaced from the rear surface of the leading edge section to form a fluid passageway therebetween; (f) a plurality of fluid outlet opening spaces disposed at different vertical levels between said rear surface of the front edge and the front surface of the front portion of the plow; (g) a tube operatively attached to the plow and to the fluid passageway to provide fluid communication to the fluid passageway; and (h) wherein there is no fluid outlet opening in the sidewalls in front of the rear surface of the leading edge section, whereby fluid in the fluid passageway exits behind the rear surface of the leading edge section and out the fluid outlet opening spaces.