Fertilizer applicator knife and its use

Details Fertilizer applicator knife and its use Fertilizer applicator knife and its use

1985-09-23

1987-12-08

Johnson, Richard J.

Planting

Liquid or gas soil treatment

Hand manipulated

172699, 172747, A01C 2302

Patent

active

047111879

ABSTRACT:
A fertilizer knife for subsurface application of fertilizer in liquid or vapor form in a ground furrow comprises a narrow, elongated blade having a width W.sub.1, a leading edge with a soil breaking segment and a trailing edge. An elongated, hollow, fertilizer conduit having a width W.sub.2 is located behind the trailing edge and is shaped to correspond to the trailing edge. A foot portion on the blade has a bottom edge extending from the leading edge upwardly toward and beyond the trailing edge to form a rearwardly extending shoulder. The conduit terminates above and is spaced from the shoulder to prevent back pressure in the conduit during movement of the knife through the furrow and to provide for flow of fertilizer away from vertical walls of the furrow. A hard, abrasion-resistant material over the soil-breaking segment forms a substantially flat surface having a width W.sub.3 on the leading edge. Soil contacting surfaces on the blade and conduit are covered by a dried, abrasion-resistant coating. The elements are dimensioned such that W.sub.1 .gtoreq.W.sub.2 and W.sub.3 >W.sub.1.

REFERENCES:
patent: 2684617 (1954-07-01), Johnston
patent: 3188989 (1965-06-01), Johnston
patent: 3439636 (1969-04-01), Lemke
patent: 4132181 (1979-01-01), Smith
patent: 4201142 (1980-05-01), Stump
patent: 4262751 (1981-04-01), Grear
patent: 4269274 (1981-05-01), Robertson
patent: 4326592 (1982-04-01), Stephenson
Adams Tillage Tools-Advertizing brochure of Adams Hard-Facing Co. Inc., Guymon D. K., p. 16.

Affiliated with

Also associated with

Rating

Fertilizer applicator knife and its use does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fertilizer applicator knife and its use, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fertilizer applicator knife and its use will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-17071