Patent ID: 7213524
Filing Date: 2007-05-08
Classification: A01B,A01C,Y02A,Y02P,Y10S

Abstract:
1. An agricultural knife apparatus, which is so structured as to be suitable for inserting granular materials into the ground, wherein: the knife apparatus is structurally suitable for the operation of creating a slit-opening in the ground and of inserting the materials into the slit-opening; the apparatus includes a shank and a blade, and includes a transition zone, at which the shank and blade are joined integrally; the shank includes a front surface and a rear surface, and a left surface and a right side surfaces; when viewed in front elevation, the shank has an axis, termed the shank axis; the blade is formed with an over-surface and an under-surface, which intersect at a line, and the line defines an angled-knife-edge of the blade; the shank axis intersects the line of the angled-knife-edge, at a point of intersection on the angled-knife-edge; when viewed in front elevation, the line of the angled-knife-edge slopes at an angle, termed the knife angle, relative to the shank axis, and the knife angle is between 30 and 60 degrees; and the apparatus includes a conduit, for depositing the granular materials in the ground, the conduit being attached to, or supported upon, the blade on a back-side of the blade, which is opposite and remote from the knife-edge; wherein the knife edge is the lowest most point of all vertical cross-sections through the blade, the vertical cross-sections aligned parallel to the forward direction of travel through the blade.