Earth clod pulverizer
First Claim
1. An earth clod pulverizing and earth smoothing implement of a type to be moved across the surface of the earth in a forwardly direction of travel while engaging the earth to break apart relatively large clods near the earth'"'"'s surface and otherwise prepare the earth'"'"'s surface for further use, said implement comprising a frame for defining a supporting surface to be approximately parallel to the earth'"'"'s surface while said implement is in use and for supporting earth-engaging members extending from said supporting surface downwardly, said earth-engaging members including teeth;
- the improvement wherein said teeth are wedge-shaped in cross section taken on a plane parallel to the earth'"'"'s surface, with the cutting edge of each wedge defining a substantially vertical line facing the forwardly direction with relatively flat sides of the wedge flaring rearwardly and laterally of the forwardly direction, and said teeth having pointed tips directed downwardly into the earth'"'"'s surface with trailing sides of said teeth sloping upwardly from said pointed tips a vertical distance of substantially greater than half the lengths of the teeth, said teeth being constructed of a cast metal and each tooth weighing at least 25 pounds.
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Accused Products
Abstract
An earth clod pulverizing and earth smoothing implement (10) has rows of heavy, cast-iron, pointed teeth (14a-v) which are wedge-shaped in cross section with the cutting edges (42) of the wedges defining substantially vertical lines facing the forwardly direction. The implement further includes downwardly directed channel irons (16a-d) after each row of teeth, with each successive channel iron being mounted slightly lower than the one in front of it. The front leg (54) of each channel iron is shorter than the back leg (56). The implement (10) also includes downwardly directed side walls (18a and b), an upwardly flared front member (20) and a downwardly flared rear, smoothing, member (22). A channel iron (16e) having equal sides is mounted on the downwardly flared smoothing member (22). The teeth are spaced two feet apart in the rows, and the rows of teeth are spaced 14 inches apart.
7 Citations
12 Claims
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1. An earth clod pulverizing and earth smoothing implement of a type to be moved across the surface of the earth in a forwardly direction of travel while engaging the earth to break apart relatively large clods near the earth'"'"'s surface and otherwise prepare the earth'"'"'s surface for further use, said implement comprising a frame for defining a supporting surface to be approximately parallel to the earth'"'"'s surface while said implement is in use and for supporting earth-engaging members extending from said supporting surface downwardly, said earth-engaging members including teeth;
the improvement wherein said teeth are wedge-shaped in cross section taken on a plane parallel to the earth'"'"'s surface, with the cutting edge of each wedge defining a substantially vertical line facing the forwardly direction with relatively flat sides of the wedge flaring rearwardly and laterally of the forwardly direction, and said teeth having pointed tips directed downwardly into the earth'"'"'s surface with trailing sides of said teeth sloping upwardly from said pointed tips a vertical distance of substantially greater than half the lengths of the teeth, said teeth being constructed of a cast metal and each tooth weighing at least 25 pounds. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. In an earth clod pulverizing and earth smoothing implement of the type to be moved across the surface of the earth in a forwardly direction of travel while engaging the earth to break apart relatively large clods near the earth'"'"'s surface and otherwise prepare the earth'"'"'s surface for further use, said implement comprising a frame for defining a supporting surface to be approximately parallel to the earth'"'"'s surface being prepared while said implement is in use and for supporting earth-engaging members extending from said supporting surface downwardly, said earth-engaging members including teeth arranged in rows perpendicular to the direction of travel of the pulverizing/smoothing implement;
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the improvement wherein channel irons are mounted on said supporting surface lateral to the forward direction of travel between rows of teeth, said channel irons having legs extending downwardly from said frame into said earth, the front legs of said channel irons being shorter than the back legs thereof so that they do not extend downwardly from the frame as far as the back legs thereof; and
,the further improvement that a smoothing member is mounted on the frame so as to extend downwardly and rearwardly therefrom and wherein a channel iron is mounted on said smoothing member with the legs of said channel iron extending perpendicularly away from said smoothing member.
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Specification