Cultivator
First Claim
1. A chisel cultivator, comprising:
- a substantially rigid frame;
a chisel coupled to said frame so that said chisel penetrates the ground surface during operation of the cultivator for breaking up sub-surface soil and urging the broken up sub-surface soil upwardly toward the surface;
heave limiter means mounted to said frame in a fixed spatial relationship to said chisel so that said heave limiter means presses downwardly on and travels over the surface of the ground during operation of the cultivator for cooperating with said chisel to crush the broken up soil urged upwardly by said chisel and for maintaining the surface of the ground substantially-level following passage of said chisel therethrough;
at least one sweep member mounted to said frame in a fixed spatial relationship to said chisel and located behind and aligned with said chisel relative to the direction of travel of the chisel cultivator, and extending outwardly of a line extending in the direction of operation of the chisel cultivator in a plane substantially orthogonal to the longitudinal axis of said chisel, said chisel configured to create sufficient downward force so that said at least one sweep member travels below the surface of the ground during operation of the cultivator; and
a coulter mounted to the chisel cultivator ahead of said heave limiter means relative to the direction of travel of the chisel cultivator for cutting through trash lying on the surface of the ground during operation of the chisel cultivator.
1 Assignment
0 Petitions
Accused Products
Abstract
A chisel cultivator for post-planting cultivation. The cultivator includes a main frame. A chisel member has one end portion coupled to the frame and a second end portion spaced from the first end portion along a longitudinal axis of the chisel member for cultivating sub-surface soil during operation of the cultivator. A heave limiter is coupled to the frame ahead of the chisel member relative to the direction of operation of the chisel cultivator. The chisel member is adjustable relative to the frame to adjust the distance of the second end portion of the chisel member from the frame. A sweep assembly is coupled to the frame behind the chisel member relative to the direction of operation of the chisel cultivator. The sweep assembly includes wings which extend outwardly of a centerline extending in the direction of operation of the chisel cultivator in a plane substantially orthogonal to the longitudinal axis of the chisel member.
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Citations
21 Claims
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1. A chisel cultivator, comprising:
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a substantially rigid frame; a chisel coupled to said frame so that said chisel penetrates the ground surface during operation of the cultivator for breaking up sub-surface soil and urging the broken up sub-surface soil upwardly toward the surface; heave limiter means mounted to said frame in a fixed spatial relationship to said chisel so that said heave limiter means presses downwardly on and travels over the surface of the ground during operation of the cultivator for cooperating with said chisel to crush the broken up soil urged upwardly by said chisel and for maintaining the surface of the ground substantially-level following passage of said chisel therethrough; at least one sweep member mounted to said frame in a fixed spatial relationship to said chisel and located behind and aligned with said chisel relative to the direction of travel of the chisel cultivator, and extending outwardly of a line extending in the direction of operation of the chisel cultivator in a plane substantially orthogonal to the longitudinal axis of said chisel, said chisel configured to create sufficient downward force so that said at least one sweep member travels below the surface of the ground during operation of the cultivator; and a coulter mounted to the chisel cultivator ahead of said heave limiter means relative to the direction of travel of the chisel cultivator for cutting through trash lying on the surface of the ground during operation of the chisel cultivator. - View Dependent Claims (2, 3)
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4. A chisel cultivator comprising:
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a substantially rigid frame; a chisel coupled to said frame so that said chisel penetrates the ground surface during operation of the cultivator for breaking up sub-surface soil and urging the broken up sub-surface soil upwardly toward the surface; heave limiter means mounted to said frame in a fixed spatial relationship to said chisel so that said heave limiter means presses downwardly on and travels over the surface of the ground during operation of the cultivator for cooperating with said chisel to crush the broken up soil urged upwardly by said chisel and for maintaining the surface of the ground substantially level following passage of said chisel therethrough; at least one sweep member adjustably mounted to said frame in a fixed spatial relationship to said chisel and located behind and aligned with said chisel relative to the direction of travel of the chisel cultivator, and extending outwardly of a line extending in the direction of operation of the chisel cultivator in a plane substantially orthogonal to the longitudinal axis of said chisel, said chisel configured to create sufficient downward force so that said at least one sweep member travels below the surface of the ground during operation of the cultivator; a coulter mounted to the chisel cultivator ahead of said heave limiter means relative to the direction of travel of the chisel cultivator for cutting through trash lying on the surface of the ground during operation of the chisel cultivator; and means for adjusting said at least one sweep member relative to said heave limiter means in a direction substantially parallel to the longitudinal axis of said chisel to thereby adjust the depth of penetration of said at least one sweep member into the ground during operation of the chisel cultivator. - View Dependent Claims (5)
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6. A chisel cultivator comprising:
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a substantially rigid frame; a chisel coupled to said frame so that said chisel penetrates the ground surface during operation of the cultivator for breaking up sub-surface soil and urging the broken up sub-surface soil upwardly toward the surface; heave limiter means mounted to said frame in a fixed spatial relationship to said chisel so that said heave limiter means presses downwardly on and travels over the surface of the ground during operation of the cultivator for cooperating with said chisel to crush the broken up soil urged upwardly by said chisel and for maintaining the surface of the ground substantially level following passage of said chisel therethrough; at least one sweep member mounted to said frame in a fixed spatial relationship to said chisel and located behind and aligned with said chisel relative to the direction of travel of the chisel cultivator, and extending outwardly of a line extending in the direction of operation of the chisel cultivator in a plane substantially orthogonal to the longitudinal axis of said chisel, said chisel configured to create sufficient downward force so that said at least one sweep member travels below the surface of the ground during operation of the cultivator; a coulter mounted to the chisel cultivator ahead of said heave limiter means relative to the direction of travel of the chisel cultivator for cutting through trash lying on the surface of the ground during operation of the chisel cultivator; and mounting means pivotally mounting said chisel to said frame to permit pivotal movement of said chisel about an axis of rotation substantially parallel to the ground surface and adjustably mounting said chisel to said frame for adjustment of the distance between said heave limiter means and said chisel. - View Dependent Claims (8, 9)
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7. A chisel cultivator, comprising:
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a substantially rigid frame; a chisel coupled to said frame so that said chisel penetrates the ground surface during operation of the cultivator for breaking up sub-surface soil and urging the broken up sub-surface soil upwardly toward the surface; heave limiter means mounted to said frame in a fixed spatial relationship to said chisel so that said heave limiter means presses downwardly on and travels over the surface of the ground during operation of the cultivator for cooperating with said chisel to crush the broken up soil urged upwardly by said chisel and for maintaining the surface of the ground substantially level following passage of said chisel therethrough; and at least one sweep member mounted to said frame in a fixed spatial relationship to said chisel and located behind and aligned with said chisel relative to the direction of travel of the chisel cultivator, and extending outwardly of a line extending in the direction of operation of the chisel cultivator in a plane substantially orthogonal to the longitudinal axis of said chisel, said chisel configured to create sufficient downward force so that said at least one sweep member travels below the surface of the ground above said chisel during the operation of the cultivator.
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10. A chisel cultivator comprising:
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a substantially rigid frame; a chisel coupled to said frame so that said chisel penetrates the ground surface during operation of the cultivator for breaking up sub-surface soil and urging the broken up sub-surface soil upwardly toward the surface; heave limiter means mounted to said frame in a fixed spatial relationship to said chisel so that said heave limiter means presses downwardly on and travels over the surface of the ground during operation of the cultivator for cooperating with said chisel to crush the broken up soil urged upwardly by said chisel and for maintaining the surface of the ground substantially level following passage of said chisel therethrough; and at least one sweep member adjustably mounted to said frame in a fixed spatial relationship to said chisel and located behind and aligned with said chisel relative to the direction of travel of the chisel cultivator, and extending outwardly of a line extending in the direction of operation of the chisel cultivator in a plane substantially orthogonal to the longitudinal axis of said chisel, said chisel configured to create sufficient downward force so that said at least one sweep member travels below the surface of the ground above said chisel during the operation of the cultivator; and means for adjusting said at least one sweep member relative to said frame in a direction substantially parallel to the longitudinal axis of said chisel to thereby adjust the depth of penetration of said at least one sweep member into the ground during operation of the chisel cultivator. - View Dependent Claims (11)
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12. A chisel cultivator, comprising:
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a substantially rigid frame; a chisel coupled to said frame so that said chisel penetrates the ground surface during operation of the cultivator for breaking up sub-surface soil and urging the broken up sub-surface soil upwardly toward the surface; heave limiter means mounted to said frame in a fixed spatial relationship to said chisel so that said heave limiter means presses downwardly on and travels over the surface of the ground during operation of the cultivator for cooperating with said chisel to crush the broken up soil urged upwardly by said chisel and for maintaining the surface of the ground substantially level following passage of said chisel therethrough; mounting means pivotally mounting said chisel to said frame to permit pivotal movement of said chisel about an axis of rotation substantially parallel to the ground surface and adjustably mounting said chisel to said frame for adjustment of the distance between said heave limiter means and said chisel; and at least one sweep member mounted to said frame in a fixed spatial relationship to said chisel and located behind and aligned with said chisel relative to the direction of travel of the chisel cultivator, and extending outwardly of a line extending in the direction of operation of the chisel cultivator in a plane substantially orthogonal to the longitudinal axis of said chisel, said chisel configured to create sufficient downward force so that said at least one sweep member travels below the surface of the ground above said chisel during the operation of the cultivator. - View Dependent Claims (13, 14, 15)
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16. A chisel cultivator comprising:
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substantially rigid frame; a chisel coupled to said frame so that said chisel penetrates the ground surface during operation of the cultivator for breaking up sub-surface soil and urging the broken up sub-surface soil upwardly toward the surface; heave limiter means mounted to said frame in a fixed spatial relationship to said chisel so that said heave limiter means presses downwardly on and travels over the surface of the ground during operation of the cultivator for cooperating with said chisel to crush the broken up soil urged upwardly by said chisel and for maintaining the surface of the ground substantially level following passage of said chisel therethrough; mounting means pivotally mounting said chisel to said frame to permit pivotal movement of said chisel about an axis of rotation substantially parallel to the ground surface and adjustably mounting said chisel to said frame for adjustment of the distance between said heave limiter means and said chisel; at least one sweep member adjustably mounted to said frame in a fixed spatial relationship to said chisel and located behind and aligned with said chisel relative to the direction of travel of the chisel cultivator, and extending outwardly of a line extending in the direction of operation of the chisel cultivator in a plane substantially orthogonal to the longitudinal axis of said chisel, said chisel configured to create sufficient downward force so that said at least one sweep member travels below the surface of the ground above said chisel during the operation of the cultivator; and means for adjusting said at least one sweep member relative to said heave limiter means in a direction substantially parallel to the longitudinal axis of said chisel to thereby adjust the depth of penetration of said at least one sweep member into the ground during operation of the chisel cultivator. - View Dependent Claims (17)
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18. A cultivating device comprising:
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a tool bar; a plurality of chisel cultivators coupled to said tool bar, wherein each of said chisel cultivators comprises, a substantially rigid frame; a chisel coupled to said frame so that said chisel penetrates the ground surface during operation of the cultivator for breaking up sub-surface soil and urging the broken up sub-surface soil upwardly toward the surface; heave limiter means mounted to said frame in a fixed spatial relationship to said chisel so that said heave limiter means presses downwardly on and travels over the surface of the ground during operation of the cultivator for cooperating with said chisel to crush the broken up soil urged upwardly by said chisel and for maintaining the surface of the ground substantially level following passage of said chisel therethrough; and at least one sweep member mounted to said frame in a fixed spatial relationship to said chisel and located behind and aligned with said chisel relative to the direction of travel of the chisel cultivator, and extending outwardly of a line extending in the direction of operation of the chisel cultivator in a plane substantially orthogonal to the longitudinal axis of said chisel, said chisel configured to create sufficient downward force so that said at least one sweep member travels below the surface of the ground above said chisel during operation of the cultivator. - View Dependent Claims (19)
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20. A chisel cultivator, comprising:
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a substantially rigid frame; a chisel coupled to said frame so that said chisel penetrates the ground surface during operation of the cultivator for breaking up sub-surface soil between crop rows; depth maintenance means mounted to said frame in a fixed spatial relationship to said chisel so that said depth maintenance means travels over the surface of the ground during operation of the cultivator for maintaining the depth of said chisel; and at least one sweep member mounted to said frame in a fixed spatial relationship to said chisel and located behind and aligned with said chisel relative to the direction of travel of the chisel cultivator, and extending outwardly of a line extending in the direction of operation of the chisel cultivator in a plane substantially orthogonal to the longitudinal axis of said chisel, said chisel configured to create sufficient downward force so that said at least one sweep member travels below the surface of the ground above said chisel during operation of the cultivator. - View Dependent Claims (21)
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Specification