Apparatus for simultaneously seeding and fertilizing agricultural crops
Patent 5537942 Issued on July 23, 1996. Estimated Expiration Date: January 27, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
An apparatus for simultaneously seeding and fertilizing agricultural crops is described which includes a seeding blade having opposed sides, a knife-like leading edge, a trailing edge and a bottom edge. A seed conduit is disposed along the trailing edge of the seeding blade and has an outlet adjacent the bottom edge. A fertilizer blade depends from one of the opposed sides of the seeding blade adjacent the bottom edge. The fertilizer blade is angled downwardly and outwardly from the seeding blade at an angle of between 10 and 40 degrees. The fertilizer blade has a knife-like leading edge, a trailing edge and a bottom edge. The trailing edge of the fertilizer blade is disposed beside and behind the trailing edge of the seeding blade. A fertilizer conduit is disposed along the trailing edge of the fertilizer blade and has an outlet adjacent the bottom edge. In operation seed passes through the seed conduit into the seed channel formed in undisturbed soil and fertilizer subsequently passes through the fertilizer conduit into the fertilizer channel formed to the side and below the seed channel thereby maintaining a spacial separation between the seed and the fertilizer.