Apparatus for high speed application of liquid or dry fertilizer
First Claim
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1. Apparatus for applying fertilizer beneath the surface of soil, comprising:
- a support;
a coulter carried by said support for rotation about a generally horizontal axis, said coulter having a peripheral cutting edge and defining a slot-forming annular region extending radially inwardly of said cutting edge, and a tapered compacting surface extending outwardly and radially inwardly of said annular region of said coulter, said compacting surface arranged to engage a sidewall of a slot formed by said coulter for compacting the soil along an upper portion of said sidewall to form a tapered lead-in surface for guiding fertilizer toward the bottom of said slot;
a delivery tube having a discharge aperture;
means for mounting said delivery tube such that said discharge aperture is located behind said compacting surface of said coulter and above said tapered lead-in surface formed in said sidewall of said slot;
whereby fertilizer passing through said discharge opening will fall onto said tapered lead-in surface and be guided into said slot.
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Accused Products
Abstract
A unique coulter has a flat band adjacent the peripheral cutting edge to form a slot. Inwardly of this flat band, and on one side of the coulter blade is an inclined compacting surface. The outer, cutting edge of the coulter enters the soil first and as the machine moves forward the compacting surface of the coulter is brought into engagement with one wall of the partially formed slot to firm the soil adjacent the top of the wall. At the rear of the coulter, behind the compacting surface, there is a delivery chute or tube for depositing the fertilizer into the slot formed by the coulter.
29 Citations
12 Claims
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1. Apparatus for applying fertilizer beneath the surface of soil, comprising:
- a support;
a coulter carried by said support for rotation about a generally horizontal axis, said coulter having a peripheral cutting edge and defining a slot-forming annular region extending radially inwardly of said cutting edge, and a tapered compacting surface extending outwardly and radially inwardly of said annular region of said coulter, said compacting surface arranged to engage a sidewall of a slot formed by said coulter for compacting the soil along an upper portion of said sidewall to form a tapered lead-in surface for guiding fertilizer toward the bottom of said slot;
a delivery tube having a discharge aperture;
means for mounting said delivery tube such that said discharge aperture is located behind said compacting surface of said coulter and above said tapered lead-in surface formed in said sidewall of said slot;
whereby fertilizer passing through said discharge opening will fall onto said tapered lead-in surface and be guided into said slot. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- a support;
- 11. For use in an agricultural implement for applying fertilizer beneath the surface of soil, a coulter having a circular peripheral cutting edge and first and second side surfaces, an annular flat band extending radially inwardly from said cutting edge to form a slot of generally uniform width and having spaced sidewalls, and a sole compacting surface extending outwardly of one of said side surfaces and arranged to compact an upper portion of only one of said sidewalls of said slot, such that a slot formed by drawing said coulter through the soil has one generally upright first sidewall from top to bottom and a second sidewall having a bottom portion defined by a generally upright wall portion spaced uniformly from said first sidewall, and a compacted inclined lead-in surface adjacent an upper edge of said second sidewall of said slot for assisting in the delivery of fertilizer material into said slot.
Specification