US4406329A — Agricultural tool cart for minimum tillage and se…

Claim 1

Independent Claim 245 words

A tractor-pulled agricultural tool cart for accomplishing minimum tillage and grain crop planting in a single pass through a field, comprising: a cart frame having two spaced apart side beams, means at the rear of each beam to receive a lower hitch point of a seed planter; an upright arch brace connecting said beams adjacent said lower hitch point receiving means and means providing an upper hitch point receiving means at the center of the arch; a lifting assembly on the cart for raising the cart and a three-point hitch equipped seed planter implement when attached to said hitch point receiving means, said assembly having a pair of wheels on an axle, a movable support for said axle including arms movably connected to said beams adjacent said lower hitch points and power means for moving said arms about said connection to lower said wheels relative to said beams and to elevate the beams relative to ground; and a tillage tool mounting assembly including elongate tool mounting bars braced to each other and secured to a pair of upright mounting plates spaced to embrace said cart beams, means mounting said plates to the cart beams for carrying the tool mounting assembly on the cart, said bars carrying outboard gauge wheels to level the tillage tool assembly relative to ground during tilling operations, said cart being capable of elevation to raise such tillage tool mounting assembly and said seed planter together for transport upon the cart wheels.

Claim 2

Dependent Claim 245 words

A tractor-pulled agricultural tool cart for accomplishing minimum tillage and grain crop planting in a single pass through a field, comprising: a cart frame having two spaced apart side beams, means at the rear of each beam to receive a lower hitch point of a seed planter; an upright arch brace connecting said beams adjacent said lower hitch point receiving means and means providing an upper hitch point receiving means at the center of the arch; a lifting assembly on the cart for raising the cart and a three-point hitch equipped seed planter implement when attached to said hitch point receiving means, said assembly having a pair of wheels on an axle, a movable support for said axle including arms movably connected to said beams adjacent said lower hitch points and power means for moving said arms about said connection to lower said wheels relative to said beams and to elevate the beams relative to ground; and a tillage tool mounting assembly including elongate tool mounting bars braced to each other and secured to a pair of upright mounting plates spaced to embrace said cart beams, means mounting said plates to the cart beams for carrying the tool mounting assembly on the cart, said bars carrying outboard gauge wheels to level the tillage tool assembly relative to ground during tilling operations, said cart being capable of elevation to raise such tillage tool mounting assembly and said seed planter together for transport upon the cart wheels.

Claim 3

Dependent Claim 61 words

An agricultural tool cart as specified in claim 1 wherein said wheel support arms are connected to a cross member journalled at the rear of said cart side beams and said arms lowering said wheels extending upright beneath the rear of said beams so as to lift the weight of an attached planter implement immediately adjacent the lower three-point hitch points.

Claim 4

Dependent Claim 86 words

An agricultural tool cart of claim 1 wherein said means of detachably mounting the tillage tool mounting bars comprises said pair of upright plates in side bearing relation to said side beam members, pivotally connected to the side beam members at one end and adjustably connected to the side beam members at the other end thereby providing a means of adjusting the angular position of the tool mounting bars relative to the frame and a means of constraining side loads imparted to the tool mounting bars.

Claim 5

Dependent Claim 65 words

The agricultural tool cart of claim 1 wherein said lifting assembly wheel supporting arms are pivotally connected to the rear of said frame and said arms extend forwardly and downwardly from such pivot connection so that the wheels may be moved downwardly from and toward the rear of said frame as the supporting arms are operationally moved toward an upright position by said power means.

Claim 6

Dependent Claim 194 words

An agricultural implement cart for seed planting behind minimum tillage, comprising: a braced cart frame including longitudinally extending beams each having a lower hitch point of a three-point hitch at its rear; an upright arch brace connecting the rearward portions of said beams and having a central upper hitch point of a three-point hitch thereon, said hitch points providing means for attaching a three-point hitch equipped seed planter implement to the rear of the cart; powered lifting mechanism at the rear of said beams including a pair of wheels movable in an upright direction relative to the cart to lift the cart and seed planter when attached thereto; a pull-tongue pivotally attached to the front of the cart frame; means for adjusting said pull-tongue in upright angular relation to the cart frame and securing said tongue in adjusted position; and a tillage tool mounting assembly adjustably secured in upright direction to the cart frame intermediate said tongue and power lifting mechanism, said assembly including elongate tool mounting bars extending to each side of the cart frame for mounting tillage tools to till ground in the path of a seed planter mounted on the cart.

Claim 7

Dependent Claim 194 words

An agricultural implement cart for seed planting behind minimum tillage, comprising: a braced cart frame including longitudinally extending beams each having a lower hitch point of a three-point hitch at its rear; an upright arch brace connecting the rearward portions of said beams and having a central upper hitch point of a three-point hitch thereon, said hitch points providing means for attaching a three-point hitch equipped seed planter implement to the rear of the cart; powered lifting mechanism at the rear of said beams including a pair of wheels movable in an upright direction relative to the cart to lift the cart and seed planter when attached thereto; a pull-tongue pivotally attached to the front of the cart frame; means for adjusting said pull-tongue in upright angular relation to the cart frame and securing said tongue in adjusted position; and a tillage tool mounting assembly adjustably secured in upright direction to the cart frame intermediate said tongue and power lifting mechanism, said assembly including elongate tool mounting bars extending to each side of the cart frame for mounting tillage tools to till ground in the path of a seed planter mounted on the cart.

Claim 8

Dependent Claim 86 words

An agricultural implement cart as specified in claim 5 in which the upright arch brace comprises a horizontal cross member above the frame beams and an upright column connecting the cross member to each frame beam, said columns extending upwardly and forwardly from the beams and power cylinders secured to the cross member adjacent each column to lower said wheels, said cylinders and columns extending generally in like direction relative to said beams primarily stressing said columns in tension upon lifting of the cart and implements.

Claim 9

Dependent Claim 64 words

An agricultural implement cart as specified in claim 5 wherein the tillage tool mounting assembly includes a pair of upright plates each embracing a side of one cart frame beam, said tool mounting bars being secured to said plates, means adjustably securing said plates to said beams for height adjustment of the assembly to ground, said assembly being raised and lowered with the cart.

Claim 10

Dependent Claim 66 words

An agricultural implement cart as specified in claim 5 wherein said tillage tool mounting assembly is pivotally attached to the front portion of the cart frame and height adjustment means is provided between the assembly and the cart frame to pivot said assembly about said pivotal attachment, said pull-tongue adjustment means and tool mounting assembly adjustment means together providing for tillage tool ground penetration depth selection.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1986-09-26	1987-03-28	1987-09-27	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1990-09-26	1991-03-28	1991-09-27	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1994-09-26	1995-03-28	1995-09-27	$7700.00	Window Closed / Lapsed

Agricultural tool cart for minimum tillage and seed planting

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