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Farm implement

  • US 4,336,844 A
  • Filed: 09/19/1980
  • Issued: 06/29/1982
  • Est. Priority Date: 01/08/1979
  • Status: Expired due to Term
First Claim
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1. A farm implement, comprising a frame adapted to be moved forwardly over the ground level, including a forward section having means thereon for attachment to a tractor by means of a three point hitch, a rearward section, means mounting the rearward section from the forward frame section for raising and lowering the rearward frame section with respect to the forward section and holding it in said raised or lowered position, subsoil chisels supported in laterally spaced-apart relation on the forward frame section for form longitudinally extending trenches in the ground as the frame moves forwardly thereover, gauge wheel means mounted on the forward frame section for engaging the ground level to determine the elevation of the subsoil chisels, additional subsoil chisels each supported in laterally spaced relation on the rearward frame section so as to penetrate the soil rearward and laterally intermediate the trenches formed by the subsoil chisels supported on the forward frame section, and a plurality of listers each mounted on one of the additional subsoil chisels.

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