Patent ID: 8291998

Claim:
A furrow closing wheel attachment apparatus for positioning on a hub of a furrow closer, said apparatus comprising: a closed loop having an inner surface, an outer surface, a first lateral surface and a second lateral surface, said inner surface forming a circle having a size configured to be engageable with the hub, said closed loop having a pair of channels therein, each of said first and second lateral surfaces having one of said channels therein extending along and being coextensive with a respective one of said first and second lateral surfaces, wherein flanges positioned on the hub are extendable into said channels to couple the hub to said loop; a plurality of teeth being attached to and extending upwardly from said outer surface, said teeth being spaced from each other and positioned around said loop, each of said teeth having a front face, a rear face, a first side, a second side and an apex positioned distal to said loop, each said front faces being faceted such that said front faces are absent of a substantial planar surface lying in a plane being orientated parallel to an axis of rotation of said loop, said front face having a width greater than 0.10 inches and a height greater than 0.30 inches, said front face of each of said teeth being a leading face of said teeth extending into soil when said loop is positioned on the hub; each of said front and rear faces includes a set of soil engaging surfaces, each set of soil engaging surfaces includes; a first facet abutting said first side and a second facet abutting said second side, said first and second facets extending toward each other and intersecting a third facet, said first and second facets being angled away from said third facet at an angle greater than 45°; an apical facet extending downwardly toward said loop and outwardly from said apex to intersect said first, second and third facets; and wherein said first and second facets are substantial planar surfaces and said third and apical facets do not form substantial planar surfaces.