Patent ID: 6892825
Filing Date: 2005-05-17
Classification: E02F

Abstract:
1. A rear blade mounting apparatus designed to be mounted to the rear of a bulldozer, said mounting apparatus comprising: a frame having first and second support arms, said first and second support arms pivotally mounted to a rear portion of said bulldozer, a blade having first and second upper end portions disposed adjacent an upper edge of the blade at opposite ends of said blade, and first and second midway pivot points adjacent to a midway portion of the blade, said blade pivotally attached to an end of said frame, at least one upper hydraulic cylinder wherein one end of the at least one upper hydraulic cylinder is pivotally attached to the rear portion of said bulldozer, and an opposite end of the at least one upper hydraulic cylinder is pivotally attached to said upper edge of said blade, a pair of lower hydraulic cylinders wherein one end of each of the lower hydraulic cylinders is pivotally attached to the rear portion of said bulldozer below the at least one upper hydraulic cylinder, and opposite ends of the lower hydraulic cylinders are pivotally attached to the frame, and operating means to control the at least one upper hydraulic cylinder and lower hydraulic cylinders.