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Trash cleaning structure for a furrow opening device

  • US 6,223,663 B1
  • Filed: 04/29/1999
  • Issued: 05/01/2001
  • Est. Priority Date: 07/30/1997
  • Status: Expired due to Fees
First Claim
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1. A clearing disk adapted for forward movement over the ground at an angle to the forward direction for clearing trash from a narrow band of ground forwardly of a ground penetrating tool, the disk having a preselected diameter and including a periphery having teeth with trash-penetrating pointed teeth ends, the teeth ends separated by shallow rounded gullets located radially inwardly of the teeth ends a distance less than approximately one inch and defining a serrated gear-tooth shaped periphery, the gullets adapted for pressing the trash against the ground and limiting the depth of penetration of the disk as the angled clearing disk moves the trash toward the side of the penetrating tool, wherein the disk is generally planar with the teeth ends centered between the rounded gullets and extending perpendicularly to the plane of the disk, the teeth ends spaced approximately one inch apart and the gullets are struck on the arc of a circle having a radius of approximately four-tenths of an inch with radius center located approximately one-eighth of an inch from the teeth ends.

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