Ground-moving equipment
OwnerLeRoy Marvin Heitmaninventor
Life of this patent
Estimating the term…
Abstract
Ground-moving equipment comprising an arcuate main blade to be fixed to suitable motive power means such as a bulldozer or the like, and an elongated auxiliary blade hingedly connected to said main blade and operable for forming or cleaning a slope which extends upwardly or downwardly from the position of the bulldozer. More specifically, it comprises a pivotal connection between the auxiliary and main blades, and a hydraulic actuator also connected between such blades and operable to enable the relative positions of such blades to be changed from a remote location.
Claims4
Ground-moving equipment for attachment to suitable motive power means comprising in combination,
- an arcuate main blade having a ground-cutting edge and adapted with fastening means for attachment to said motive power means in a substantially horizontal position to be raised and lowered, and to be angled in the horizontal and vertical planes as desired,
- an elongated auxiliary blade having a ground-cutting edge,
- and means including hinge means connected to said auxiliary and main blades and a hydraulic actuator comprising remote control means and a source of hydraulic power, said actuator being connected to said main and auxiliary blades at such locations that said ground-cutting edge of said auxiliary blade can be positioned below and above the horizontal position of said main blade,
- said hinge means constituting the sole support for said auxiliary blade against movement in a horizontal plane comprising a pair of sleeves fixed in spaced relation to said main blade and having individual ware bushings and a bifurcated mounting member on said auxiliary blade having a pair of spaced extensions straddling one of said sleeves, and a pivot pin positioned in aligned openings in said wear bushings and extensions to prevent movement other than rotational movement between said blades.
Dependencies are inferred from the claim text.