Patent ID: 7415999

Claim:
A grubber and push bar device for the removal of vegetation and subsurface roots, adapted to an accessory attached to a front end of a front end loader vehicle, said accessory having side support members and a front portion, said device comprising: two rear adapter mounting brackets defining a lower base plate and an upper support member attached to said side support members of said accessory; two front adapter mounting brackets defining a lower base plate and an upper support member attached to said front portion of said accessory; a grubber and push bar assembly having two arm support members, each said arm support member having a first end attached to an arm mounting bracket, each arm mounting bracket having a rear mounting projection removably attached to each said front adapter mounting bracket, and each arm mounting bracket further having an upper mounting projection removably attached to a hydraulic cylinder, each said hydraulic cylinder further attached to each said rear adapter mounting bracket, each said arm support member having a second end, said second ends of said two arm support members attached together on respective lower surfaces by an angle body support member and on respective upper surfaces by an angle body stiffening member, said angle body support member having an inner angle surface to which a plurality of evenly spaced angle body hinge plates are attached; and a cutting blade assembly pivotally attached to said grubber and push bar assembly, said cutting blade assembly further comprising a blade mounting plate having an upper surface to which are attached a plurality of blade mounting hinge plates, equal in number and spacing to said plurality of angle body hinge plates, each said blade mounting hinge plate pivotally attaching to each said angle body hinge plate by removable pins, said blade mounting plate further defining a lower surface to which is attached a serrated cutting blade having a plurality of cutting teeth on a serrated cutting margin, wherein said cutting blade assembly may be raised above and lowered in front of said accessory by respective contraction and expansion of said hydraulic cylinders.